Publications

International Journals

• Hanni Koo and Sangwook Nam, "Ku-Band Printed Bow-Tie Antenna H-plane Array with Low Mutual Coupling", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, early access [PDF]

• Jae-hyun Park, Taewoo Yu, Eunbin Kim, Seung-yeon Kim, Reem Song, Sangwook Nam and Byung-Sung Kim, "A 94-GHz high resolution radar using time interleaving active array in 65-nm CMOS," IEEE ACCESS, early access, Dec. 2023.[PDF]

• Taewoo Yu, Eunbin Kim, Jae-hyun Park, Byung-Sung Kim and Sangwook Nam, "W-Band Co-Prime Array FMCW MIMO Radar with IPCE Algorithm for High-Angular Resolution" IEEE ACCESS,  vol.11, pp. 109899-109910, Oct. 2023.[PDF]

• Doohyun Yang and Sangwook Nam, "Frequency Reconfigurable Beam Scanning Squarely Modulated Reactance Surface Antenna With Period and Surface Reactance Control" IEEE ACCESS, vol.11, pp. 72552-72561, Jul. 2023.[PDF]

• Dong-Woo Kim and Sangwook Nam, "TVmmC: Robust Calibration Method for Signal Distortion in Near-Field MIMO Imaging Radar "IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, vol.72, Art no. 4505108, pp.1~8, Jul. 2023.[PDF]

• Ho Yeol Kim, Youngseok Lee, and Sangwook Nam, "Efficiency Bound Estimation for a Practical Microwave and mmWave Wireless Power Transfer System Design", Journal of Electromagnetic Engineering and Science, vol.23, no.1, pp.69~74, Jan. 2023.[PDF]

• Seongjung Kim and Sangwook Nam, "Designing a polarization‐insensitive and ultra‐wideband transmissive polarization convertor using a tightly coupled dipole array"Microwave and Optical Technology Letters, vol.65, no.1, pp.154~161, Jan. 2023.[PDF]

• Seongjung Kim and Sangwook Nam, "Wideband and Ultrathin 2×2 Dipole Array Antenna for 5G mmWave  Applications "IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, vol.21, no.12, pp.2517~2521, Dec. 2022.[PDF]

• Yunsang Shin, Seung Geol Nam, Jinseong Heo and Sangwook Nam, "Broadband Characterization of Thin Dielectrics Using Heterolayer and Monolayer MIM Capacitors " IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, vol.71, Aug. 2022.[PDF] 

• Seongjung Kim and Sangwook Nam, "Design of a Relocatable Antenna Element Module for a Ku-Band Reconfigurable Array with Low Mutual Coupling " JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, vol.22,no.4, pp. 534~536, Jul. 2022.[PDF]

• Seongjung Kim and Sangwook Nam, "A Novel Reflection-Type Polarization Convertor Design Using Connected Orthogonal Tightly Coupled Dipole Arrays." IEEE Access, vol. 10, pp. 52116~52124, May. 2022.[PDF]

• Hyungcheol Kim and Sangwook Nam, "Performance Improvement of LC-Based Beam-Steering Leaky-Wave Holographic Antenna Using Decoupling Structure" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 70, no.4, pp. 2431~2438, april 2022.[PDF]

• Joon-Hong Kim and Sangwook Nam, "Optimized Transmitting Sources for Radiative Wireless Power Transmission With Lossy Media" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 70, no.4, pp. 3106~3111, april 2022.[PDF]

• Dong-Woo Kim, YongAm Son, Hojung Kang and Sangwook Nam, " Low-Spurious Wideband DDS-Based Ku-Band Chirp Generator for Short-Range Radar Application " IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, vol. 32, no.3, pp. 206~209, March 2022.[PDF]

• EUN-CHEOL CHOI and SANGWOOK NAM, " High-Efficiency Dielectric Reflectarray Antennas With Ultra-Wideband Characteristics." IEEE Access, vol. 9, pp. 152075~152081, Nov. 2021.[PDF]

• Kyun Kyu Kim, Joonhwa Choi, Joon-Hong Kim, Sangwook Nam, and Seung Hwan Ko, "Evolvable Skin Electronics by In Situ and In Operando Adaptation" Advanced Functional Materials, 2106329, 2021.[PDF]

• Seongjung Kim and Sangwook Nam, "Ultra-Wideband and Wide-Angle Insensitive Absorber Based on TCDA-Under-Tightly Coupled Dipole Array" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 69, no.9, pp. 5682~5690, September. 2021.[PDF]

• Taewoo Yu, Hyunwook Lee, Sang-Jun Park and Sangwook Nam, "A Uniform Heating Technique for Cavity in Volatile Organic Compound (VOC) Removal System Using Slotted Waveguide Array" JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, vol.21,no.2, pp. 126~133, April. 2021.[PDF]

• Seongjung Kim and Sangwook Nam, "Characteristics of TCDA With Polarization Converting Ground Plane" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 69, no.4, pp. 2359~2364, April. 2021.[PDF]

• Seongjung Kim and Sangwook Nam, "Extremely low-profile wideband array antenna using TCDA with polarization convertor" Microwave and Optical Technology Letters, vol. 63, no.3, pp. 959-964, Mar. 2021.[PDF]

• JUN-SEONG KIM, HYUN-JIN KIM, MINGEON SHIN, JAE-HYUN PARK, OH-YUN KWON, REEM SONG, SUNGHO LEE, SANGWOOK NAM AND BYUNG-SUNG KIM. "79 GHz Active Array FMCW Radar System on Low-Cost FR-4 Substrates." IEEE Access, vol. 8, pp. 213854-213865, Dec. 2020.[PDF]

• Hyunjin Kim and Sangwook Nam. " Transmission Enhancement Methods for Low-Emissivity Glass at 5G mmWave Band." IEEE ANTENNAS AND WIRELESS PROPAGATION LETTER, vol. 20, no.1 pp. 108-112, Jan. 2021.[PDF]

• Eun-Cheol choi and Sangwook Nam. "Analysis and Elimination of Unwanted Resonances for Wideband Reflectarray Antenna Design at Sub-Millimeter Waves." IEEE Access, vol. 8, pp. 224750-224760, Dec. 2020.[PDF]

• Ho Yeol Kim and Sangwook Nam, "Optimization of Microwave Wireless Power Transmission With Specific Absorption Rate Constraint for Human Safety" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 68, no. 11, pp. 7721-7726, Nov. 2020[PDF]

• Seongjung Kim and Sangwook Nam, "Compact Ultrawideband Antenna on Folded Ground Plane" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 68, no. 10, pp. 7179-7183, Oct. 2020[PDF]

• Hanni Koo and Sangwook Nam, " Mechanism and Elimination of Scan Blindness in a T-Printed Dipole Array" IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 68, no. 1, pp. 242-253, Jul. 2020.[PDF]

• Eun-Cheol Choi and Sangwook Nam, "W-Band Low Phase Sensitivity Reflectarray Antennas With Wideband Characteristics Considering the Effect of Angle of Incidence" IEEE Access, vol.8, pp. 111064~111073, May. 2020[PDF]

• Hyunjin Kim and Sangwook Nam, " 28 GHz metal cavity-backed twin arc slot antenna for high efficiency and thermal management" Microwave and Optical Technology Letters, vol.62, Issue 11, May. 2020[PDF]

• Arun Bhattacharyya, Dooheon Yang and Sangwook Nam, " Microstrip array antenna bandwidth enhancement using reactive surface" Microwave and Optical Technology Letters, vol.62, no.2, Jan. 2020[PDF]

• Youngjoon Lim, Bongkyun Seo and Sangwook Nam, "FDTD Simulation of Three-Wave Scattering Process in Time-Varying Cold Plasma Sheath," IEEE Access, vol.7, pp. 106713~106720, Jul. 2019[PDF]

• Joon-Hong Kim, Youngjoon Lim, and Sangwook Nam, "Efficiency Bound of Radiative Wireless Power Transmission Using Practical Antennas," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.67, no.8, pp. 5750~5755, Aug. 2019[PDF]

• Dong-Woo Kim, Joon-Hong Kim, and Sangwook Nam, "Beam Steering of a Multi-Port Chassis Antenna Using the Least Squares Method and Theory of Characteristic Modes," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.67, no.8, pp. 5684~5688, Aug. 2019[PDF]

• Seongjung Kim and Sangwook Nam, "A Compact and Wideband Linear Array Antenna With Low Mutual Coupling," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.67, no.8, pp. 5695~5699, Aug. 2019[PDF]

• Seongjung Kim and Sangwook Nam, "Bandwidth Extension of Dual-Polarized 1-D TCDA Antenna Using VMS," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.67, no.8, pp. 5305~5312, Aug. 2019[PDF]

• Yoon Goo Kim and Sangwook Nam, " Determination of the Impedance Parameters of Antennas and the Maximum Power Transfer Efficiency of Wireless Power Transfer," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.67, no.8, pp. 5132~5144, Aug. 2019[PDF]

• Minyoung Yoon and Sangwook Nam, “7-Bit Multilayer True-Time Delay up to 1016 ps for Wideband Phased Array Antenna," IEICE Transactions on Electronics, vol.E102-C,no.8, Aug. 2019[PDF]

• Jaeyong Ko and Sangwook Nam, “A 0.4-1.2GHz Reconfigurable CMOS Power Amplifier for 802.11ah/af Applications," IEICE Transactions on Electronics, vol.E102-C,no.1, Jan 2019[PDF]

• Doohyun Yang and Sangwook Nam, " Tapered Unit Cell Control of a Sinusoidally Modulated Reatance Surface Antenna," IEEE Antennas and Wireless Propagation Letters, vol.17, no.12, Dec. 2018[PDF]

• Dong-Woo Kim and Sangwook Nam, "Mutual Coupling Compensation in Received-Mode Antenna Array Based on Characteristic Mode Analysis," IEEE Transactions Antennas and Propagation, vol.66, No.12, Dec. 2018[PDF]

• Jaeyong Ko and Sangwook Nam, "A Two-Stage S-/X-Band CMOS Power Amplifier for High-Resolution Radar Transceivers," IEEE Microwave and Wireless Components Letters, vol.28, No.7, Jul. 2018[PDF]

• Dong-Woo Kim and Sangwook Nam, "Systematic Design of a Multiport MIMO Antenna with Bilateral Symmetry Based on Characterisitic Mode Analysis," IEEE Transactions Antennas and Propagation, vol.66, No.3, Mar. 2018[PDF]

• Hakjune Lee and Sangwook Nam, "A Dual-Polarized 1-D Tightly Coupled Dipole Array Antenna ," IEEE Transactions Antennas and Propagation, vol.65, No.9, Sep. 2017[PDF]

• H. Kim, Y. Lee, B. Kim, K. Baek, S. Ko, T. Yang, J. Lee and S. Nam "60 GHz digitally controllable and sequentially rotated fed antenna array", Electronics Letters, vol.53, No.13, June. 2017[PDF]

• Minyoung Yoon, Byungjoon Kim, Jintae Kim and Sangwook Nam, " Design of Optimization of Gm-C Filters via Geometric Programming," IEICE Transactions on Electronics, vol.E100-C, No.4, April. 2017[PDF]

• Byungjoon Kim, Jong-seop Koo, Duksoo Kim, and Sangwook Nam, "A Wall-Clutter Rejection Technique Using Two PLLs and a Phase Controller for Wall-Penetrating FMCW Radar," IEEE Geoscience and Remote Sensing Letters, vol.14, No.4, Apr. 2017[PDF]

• Joon-Hong Kim and Sangwook Nam, "Design of a compact dualband quasi-isotropic antenna," Electronics Letters, vol.53, No.8, Apr. 2017[PDF]

• Duksoo Kim, Byungjoon Kim and Sangwook Nam, "A Wideband Noise-Cancelling Receiver Front-End Using a Linearized Transconductor," IEICE Transactions on Electronics, vol.E100-C, No.3, Mar. 2017[PDF]

• Joon-Hong Kim and Sangwook Nam, " A Compact Quasi-Isotripic Antenna Based on Folded Split-Ring Resonators," IEEE Antennas and Wireless Propagation Letters, vol.16, Mar. 2017[PDF]

• Dooheon Yang, Minyoung Yoon, and Sangwook Nam, "Isolation Enhanced Multiway Power Divider for Wideband (4:1) Beamforming Arrays," IEICE Transactions on Electronics, vol.E99-C, no.12, Dec. 2016[PDF]

• Jae-Hoon Song, Chenglin Cui, Seong-Kyun Kim, Byung-Sung Kim, and Sangwook Nam, " A Low-Phase-Noise 77-GHz FMCW Radar Transmitter With a 12.8-GHz PLL and a ×6 Frequency Multiplier," IEEE Microwave and Wireless Components Letters, vol. 26, no. 7, pp. 540-542, July. 2016[PDF]

• Kihyun Kim, Jaeyong Ko, Sungho Lee, and Sangwook Nam, " A Two-Stage Broadband Fully Integrated CMOS Linear Power Amplifier for LTE Applications," IEEE Transactions on Ciurcuits and Systems_II:Express Briefs, vol.63, no.6, Jun. 2016[PDF]

• Byungjoon Kim, Duksoo Kim, Youngjoon Lim, Dooheon Yang, Sangwook Nam, "A Clutter Rejection Technique Using a Delay-Line for Wall-Penetrating FMCW Radar," IEICE Transactions on Electronics, vol. E99-C, no.5, May. 2016[PDF]

• Hakjune Lee, Duk-Jae Woo, and Sangwook Nam, " Compact and Bandwidth-Enhanced Asymmetric Coplanar Waveguide (ACPW) Antenna Using CRLH-TL and Modified Ground Plane," IEEE Antennas and Wireless Propagation Letters, vol.15, Mar. 2016[PDF]

• Jae-Hoon Song, Byung-Sung Kim, Sangwook Nam," An Adaptively Biased Class-C VCO With a Self-Turn-Off Auxiliary Class-B Pair for Fast and Robust Startup," IEEE Microwave and Wireless Components Letters, vol. 26, no. 1, pp. 34-36, Jan. 2016[PDF]

• Chan-mo Kang, Jessica Wade, Sumin Yun, Jaehoon Lim, Hyunduck Cho, Jeongkyun Roh, Hyunkoo Lee, Sangwook Nam, Donal D.C Bradley, Ji-Seon Kim, and Changhee Lee, "1GHz Pentacene Diode Rectifiers Enabled by Controlled Film Deposition on SAM-Treated Au Anodes," Advanced Electronic Materials, vol. 2, no. 2, pp. Feb. 2016[PDF]

• Chenglin Cui; Seong-Kyun Kim; Reem Song; Jae-Hoon Song; Sangwook Nam; Byung-Sung Kim, "A 77-GHz FMCW Radar System Using On-Chip Waveguide Feeders in 65-nm CMOS," IEEE Transaction on Microwave Theory and Techniques, vol. 63, no. 11, pp. 3736-3746, Nov. 2015[PDF]

• Duksoo Kim, Byungjoon Kim, Sangwook Nam, "A Transconductor and Tunable Gm-C High-Pass Filter Linearization Technique Using Feedforward Gm3 Canceling," IEEE Transaction on Circuits and Systems II, vol. 62, No. 11, Nov, 2015[PDF]

• Donghee Son, Jongha Lee, Dong Jun Lee, Roozbeh Ghaffari, Sumin Yun, Seok Joo kim, Ji Eun Lee, Hye Rim Cho, Soonho Yoon, Shixuan Yang, Seunghyun Lee, Shutao Qiao, Daishun Ling, Sanghun Shin, Jun-Kyul Song, Jaemin Kim, Taeho Kim, Hakyong Lee, Jonghoon Kim, Min Soh, Nohyun Lee, Cheol Seong Hwang, Sangwook Nam, Nanshu Lu, Taeghwan Hyeon, Seung Hong Choi, and Dae-Yyeong Kim, "Biofesorbable Electronic Stent Integrated with Therapeutic Nanoparticles for Endovascular Diseases," American Chemical Society Nano, vol. 9, no. 6, pp. 5937-5946, Jun. 2015[PDF]

• Kim, Dong-yeon, Lim, Youngjoon, Yoon, Hee-Sung, Nam, Sangwook, "High-Efficiency W-Band Electroforming Slot Array Antenna," IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 63, no. 4, pp. 1854-1857, April. 2015[PDF]

• Duk-Jae Woo, Taek -Kyung Lee, and Sangwook Nam, "A MODELING METHOD FOR DUMBBELL-SHAPED DGS AND ITS PAFAMETER EXTRACTION," MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, vol. 56, no.12, Dec. 2014[PDF]

• Jaeyong Ko, Kihyun Kim, Jaehoon Song and Sangwook Nam, "A simplified Broadband Output Matching Technique for CMOS stacked Power Amplifiers," IEICE Transactions on Electronics, vol. E97-C, no.10, Oct. 2014[PDF]

• Byungjoon Kim, Sangwook Nam and Hee-Ran Ahn, "Design of Wideband Coupled Line DC Block with Compact Size," IEICE Transactions on Electronics, vol. E97-C, Sep. 2014[PDF]

• Sumin Yun, Dong-Yeon Kim and Sangwook Nam, "Folded Cavity-Backed Crossed-Slot Antenna," IEEE Antennas and Wireless Propagation Letters, vol.13, Sep. 2014[PDF]

• Hee-Ran Ahn, Byungjoon Kim, and Sangwook Nam, "Compact UHF 3 dB MCCT Power Dividers," IEEE Microwave and Wireless Components Letters, vol. 24, no. 7, pp. 445-447, Jul. 2014[PDF]

• Yoon Goo Kim and Sangwook Nam, "Spherical mode-based analysis of wireless power transfer between two antennas," IEEE Transaction on Antennas and Propagation, vol. 64, no. 6, pp. 3054-3063, Jun. 2014[PDF]

• Kihyun Kim, Junghee Choi, Munkyo Seo, Sangwook Nam, "500MHz OOK Transmitter with 22 pJbit 38 4% Efficiency using RF Current Combining," IEEE Microwave and Wireless Components Letters, vol. 24, no. 6, pp. 1531-1309, Jun. 2014[PDF]

• Hee-Ran Ahn and Sangwook Nam, "3-dB Power Dividers With Equal Complex Termination Impedances and Design Methods for Controlling Isolation Circuits," IEEE Transaction on Microwave Theory and Techniques, vol. 61, no. 11, pp. 3872-3883, Nov. 2013[PDF]

• Dong-yeon Kim and Sangwook Nam, “Excitation control method for a low sidelobe SIW series slot array antenna with 45º linear polarization,” IEEE Trans. on Antennas and Propagation, vol. 61, no. 11, pp. 5807-5812, Nov. 2013[PDF]

• Jae-Hoon Song, Byung-Sung Kim, and Sangwook Nam, “A 24GHz Transformer Coupled CMOS VCO for a wide Linear Tuning Range” , IEICE Transaction on Electronics, vol. E96-C, no.10, pp.1348-1350, October. 2013[PDF]

• Yoon Goo Kim and Sangwook Nam, “Determination of the generalized scattering matrix of an antenna from characteristic modes,” IEEE Trans. Antennas Propag. vol. 61, no. 9, pp. 4848-4852, Sep. 2013[PDF]

• Hee-Ran Ahn and Sangwook Nam, "Wideband Microstrip Coupled-Line Ring Hybrids for High Power-Division Ratios," IEEE Transaction on Microwave Theory and Techniques, vol. 61, no. 5, pp. 1768-1780, May. 2013[PDF]

• Hee-Ran Ahn and Sangwook Nam, Hee-Ran Ahn and Sangwook Nam, "Compact Microstrip 3-dB Coupled-Line Ring and Branch-Line Hybrids With New Symmetric Equivalent Circuits," IEEE Transaction on Microwave Theory and Techniques, vol. 61, no. 3, pp. 1067-1078, Mar. 2013[PDF]

• Sumin Yun, Dong-Yeon Kim and Sangwook Nam, "Bandwidth and Efficiency Enhancement of Cavity-Backed Slot Antenna Using a Substrate Removal," IEEE Antennas and Wireless Propagation Letters, vol.11, pp 1458-1461, Nov. 2012[PDF]

• Sumin Yun, Dong-Yeon Kim and Sangwook Nam, "Bandwidth Enhancement of Cavity- Backed Slot Antenna Using a Via-Hole Above the Slot," IEEE Antennas and Wireless Propagation Letters, vol.11, pp 1092-1095, Oct. 2012[PDF]

• Kihyun Kim, Sumin Yun, Sungho Lee, and Sangwook Nam, "Low-Power CMOS Super-Regenerative Receiver With a Digitally Self-Quenching Loop," IEEE Microwave and Wireless Components Letters, Vol. 22, No. 9, pp. 486-488, Sep. 2012[PDF]

• Jongmin Park*, Sungho Lee, Youndo Tak, Sangwook Nam, " Simple efficient resonant coupling wireless power transfer system operating at varying distances between antennas," Microwave and Optical Technology Letters, vol. 54, issue 10, pp. 2397-2401, Oct. 2012[PDF]

• Hee-Ran Ahn and Sangwook Nam, " Design Method for Butter-Cheby Bandpass filters With Even Number of Resonators," IEEE Transaction on Microwave Theory and Techniques, vol. 60, no. 6, pp. 1549-1559, June. 2012[PDF]

• Dong-yeon Kim, Woo-sung Chung, Chang-Hyun Park, Sang-Joo Lee, Sangwook Nam, " A Series Slot Array Antenna for 45° - Inclined Linear Polarization With SIW Technology, " IEEE Transactions on Antennas and Propagation, vol.60, no.4, pp. 1785-1795, April. 2012[PDF]

• Kihyun Kim, Sumin Yun, Sungho Lee, Sangwook Nam, Young Joong Yoon and Changyul Cheon, " A Design of a High-Speed and High-Efficiency Capsule Endoscopy System, " IEEE Transactions on Biomedical Engineering, vol.59, no.4, pp. 1005-1011, April. 2012[PDF]

• Youndo Tak and Sangwook Nam, "Extended Mode-Based Bandwidth Analysis for Asymmetric Near-Field Communication Systems," IEEE Transaction on Antennas and Propagation, vol. 60, no. 1, pp. 421-424, January 2012[PDF]

• Sungho Lee, Kihyun Kim, Jaehoon Song, Kang-Yoon Lee, and Sangwook Nam, "A CMOS Outphasing Transmitter Using Two Wideband Phase Modulators, " Journal of Semiconductor Technology and Science, vol.11, no.4, Dec. 2011[PDF]

• Youndo Tak and Sangwook Nam, “Mode-based Computation Method of Channel Characteristics for a Near-Field MIMO,” IEEE Antennas and Wireless Propagation Letters, 2011, vol. 10, pp. 1170-1173, Oct. 2011[PDF]

• Hee-Ran Ahn and Sangwook Nam, " Wideband Coupled-Line Microstrip Filters With High-Impedance Short-Circuited Stubs," IEEE Microwave and Wireless Components Letters, vol. 21, no. 11, pp. 586-588, Nov. 2011[PDF]

• Hee-Ran Ahn and Sangwook Nam, "New Design Formulas for Impedance-Transforming 3-dB Marchand Baluns," IEEE Transaction on Microwave Theory and Techniques, vol. 59, no. 11, pp. 2816-2823, Nov. 2011[PDF]

• Young-Sang Jeon and Sangwook Nam, "A Discrete-Amplitude Pulse with Modulation for a High-Efficiency Linear Power Amplifier," ETRI Journal, vol. 33 , no. 5, pp.679-688, Oct. 2011[PDF]

• Y. Tak, J. Park, and S. Nam, “Mode-based Estimation of 3 dB Bandwidth for Near-Field Communication Systems,” IEEE Trans. Antennas Propag., vol. 59, no. 8, pp. 3131-3135, 2011.[PDF]

• Jaejun Lee, Sungho Lee, Sangwook Nam, “On-Chip Supply Noise Suppression Technique Using Active Inductor” , IEICE Transaction on Electronics, vol. E94-C, no. 05, pp. 917-919, May. 2011.[PDF]

• Jongmin Park, Youndo Tak, Yoongoo Kim, Youngwook Kim, and Sangwook Nam, “Investigation of Adaptive Matching Methods for Near-Field Wireless Power Transfer” , IEEE Transaction on Antennas and Propagation, vol. 59, no. 5, pp. 1769-1773, May 2011[PDF]

• Dong-yeon Kim, W. Chung, C. Park, S. Lee, and Sangwook Nam, "Design of a 45-Inclined SIW Resonant Series Slot Array Antenna for Ka band", IEEE Antennas and Wireless Propagation Letters, 2011 [PDF]

• Sang-Wook Kim, Se-Yun Kim and Sangwook Nam, "Short-Time Fourier Transform of Deeply Located Tunnel Signatures Measured by Cross-Borehole Pulse Radar," Geoscience and Remote Sensing Letters, vol. 8, No. 3, pp. 492-495 May 2011 [PDF]

• Youndo Tak, Jongmin Park, and Sangwook Nam , “The Optimum Operating Frequency for Near-Field Coupled Small Antennas” , IEEE Transaction on Antennas and Propagation, vol. 59, no. 3, pp. 1027-1031, March. 2011[PDF]

• Sumin Yun, Kihyun Kim and Sangwook Nam, "Outer Wall Loop Antenna for Ultra Wideband Capsule Endoscope System," IEEE Antennas and Wireless Propagation Letters, vol.9, pp 1135-1138, Dec. 2010 [PDF]

• Jaejun Lee, Sungho Lee and Sangwook Nam, "A Crosstalk Reduction Technique for Microstrip MTL Using Mode Velocity Equalization" IEEE Transactions on Electromagnetic Compatibility, vol.53, pp. 366-371, May. 2011[PDF]

• Jaechun Lee and Sangwook Nam, " Fundamental Aspects of Near-Field Coupling Small Antennas for Wireless Power Transfer," IEEE Transaction on Antennas and Propagation, vol. 58, no. 11, pp. 3442-3449, Nov. 2010 [PDF]

• Jung-Sim Roh, Yong-Seung Chi, Jae-Hee Lee, Youndo Tak, Sangwook Nam, Tae Jin Kang, "Embroidered Wearable Multiresonant Folded Dipole Antenna for FM Reception," IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 803-806, 2010 [PDF]

• Eunil Cho, Yonghoon Song, Sungho Lee, Joontae Park, and Sangwook Nam, "An Efficient CMOS Power-Combining Technique with Differential and Single-Ended Power Amplifier," Microwave and Optical Technology Letters, vol. 52, no. 10, pp. 2214-2217, October. 2010 [PDF]

• Jung-Sim Roh, Yong-Seung Chi, Jae-Hee Lee, Sangwook Nam, Tae Jin Kang, " Characterization of embroidered inductors," Smart Materials and Structures, vol. 19, no. 11, Sep. 2010 [PDF]

• Sang-Wook Kim, Se-Yun Kim and Sangwook Nam, "Estimation of the penetration of a man-made tunnel using time of arrival measured by short-pulse cross-borehole radar" Geophysics, vol. 75, No. 3, pp. 11-18 May-June 2010 [PDF]

• Sungho Lee, Jaejun Lee, Hangue Park, Kang-Yoon Lee and Sangwook Nam, "Self-Calibrated Two-point Delta-Sigma Modulation Technique for RF Transmitter" IEEE Transaction on Microwave Theory and Techniques, vol.58, no.7, pp.1748-1757, July. 2010 [PDF]

• Jaejun Lee, Sungho Lee and Sangwook Nam, "High-Performance Multi-Chip Interconnections: Multi-Slot Main Memory System for Post DDR3" IEEE Transaction on Circuits and Systems, vol. 57, no. 5, pp.334-338, May 2010 [PDF]

• Sungho Lee and Sangwook Nam, "A CMOS Outphasing Power Amplifier With an Integrated Single-Ended Chireix Combiner" IEEE Transaction on Circuits and Systems II, vol. 57, No. 6, June, 2010 [PDF]

• Yonghoon Song, Sungho Lee, Eunil Cho, Jaejun Lee, and Sangwook Nam. "A CMOS Class-E Power Amplifier With Voltage Stress Relif and Enhanced Efficiency" IEEE Transaction on Microwave Theory and techniques, vol. 58, No. 2, pp. 310-317 Feb. 2010 [PDF]

• Eunil Cho, Sungho Lee, Jaejun Lee and Sangwook Nam, "A High-Efficient Transformer Using Bond Wires for Si RF IC" IEICE Transaction on Electronics, vol. E-93-C, no.1, pp.140-141, Jan. 2010 [PDF]

• Jaejun Lee, Sungho Lee, Younghoon Song and Sangwook Nam, "High Gain and Wide Range Time Amplifier Using Inverter Delay Chain in SR Latches" IEICE Transaction on Electronics, vol. E-92-C, pp. 1548-1550, Dec. 2009 [PDF]

• Youndo Tak, Jongmin Park and Sangwook Nam, "Mode-Based Analysis of Resonant Characteristics for Near-Field Coupled Small Antennas," IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 1238-1241, Nov. 2009 [PDF]

• Hangue Park, Sungho Lee, Jaejun Lee and Sangwook Nam, "A 0.1-1GHz CMOS Variable Gain Amplifier using Wideband Negative Capacitance," IEICE Transaction on Electronics, vol. E-92-C, no. 10, pp. 1311-1314, Oct. 2009 [PDF]

• Hangue Park, Sungho Lee, Jaejun Lee and Sangwook Nam, "A 2.3-7GHz CMOS High Gain LNA using CS-CS Cascode with Coupling C," IEICE Transaction on Electronics, vol. E92-C, no. 8, pp. 1091-1094, Aug. 2009 [PDF]

• Jaechun Lee and Sangwook Nam, "Effective Area of a Receiving Antenna in a Lossy Medium," IEEE Transaction on Antennas and Propagation, vol. 57, no. 6, pp. 1843-1845, June. 2009 [PDF]

• Hyunjin Kim, Youngsang Jeon, Jaejun Lee, Sungho Lee, and Sangwook Nam, "A High-Efficiency Power Amplifier Using Multilevel Digital Pulse Modulation," Microwave and Optical Technology Letters, vol. 51, no. 8, pp. 1921-1924, August. 2009 [PDF]

• Hangue Park, Jaejun Lee, Jaechun Lee and Sangwook Nam, "A CMOS RF Power Detector Using an Improved Unbalanced Source Coupled Pair," IEICE Transaction on Electronics, vol. E91-C, no. 12, pp. 1969-1970, December. 2008[PDF]

• Jung-Sim Roh, Yong-Seung Chi, Tae Jin Kang and Sangwook Nam, , " Electromagnetic Shielding Effectiveness of Multifunctional Metal Composite Fabrics," Textile Research Journal, vol. 78, no. 9, Aug. 2008[PDF]

• Jaechun Lee and Sangwook Nam, "Q Evaluation of Antennas in an Electrically Conductive Medium," IEEE Transaction on Antennas and Propagation, vol. 56, no. 7, pp. 2116-2120, July. 2008[PDF]

• Hanseung Lee and Sangwook Nam, "TRI BRANCH LINE COUPLER USING DOUBLE-LORENTZ TRANSMISSION LINES," Microwave and Optical Technology Letters, vol. 50, no. 5, pp. 1174-1177, May. 2008[PDF]

• Jungseok Oh, Taejong Baek, Donghoon Shin, Jinkoo Rhee and Sangwook Nam, "60-GHZ cpw-fed dielectric-resonator-above-patch(DRAP) antenna for broadband wlan applications using micronatching technology," Microwave and Optical Technology Letters, vol. 49, no. 8, pp. 1859-1861, Aug. 2007[PDF]

• Jongkuk Park, Jeongphil Kim, and Sangwook Nam, "Design of a Novel Harmonic-Suppressed Microstrip Law-pass Filter," IEEE Microwave and Wireless Letters, Vol. 17, No. 6, pp. 424-426, June 2007[PDF]

• Won-seok Lihh and Sangwook Nam, "Time-Domain Electromagnetic Fields Radiating Along the Horizontal Interface Between Vertically Uniaxial Half-Space Media," IEEE Transactions on Antennas and Propagation, Vol. 55, no. 5, pp. 1305-1317, May 2007[PDF]

• Yonghoon Kim, Heeduck Chae, and Sangwook Nam, "A new derivation for the coefficients of the scattering dyadic Green's function in spherically layered media," Microwave and Optical Technology Letters, vol. 49, no. 5, pp. 1142-1143, May 2007[PDF]

• Young-sang Jeon, Jukyung Cha, and Sangwook Nam, "High-Efficiency Power Amplifier Using Novel Dynamic Bias Switching," IEEE Transactions on Microwave Theory and Techniques, Vol 55, no. 4, pp. 690-696, April 2007 [PDF](06-6)

• Young-Sang Jeon, Hoe-Sung Yang, and Sangwook Nam, "A Power Re-Use Technique for Improved Efficiency of Pulsed Oscillating Amplifiers," IEEE Microwave and Wireless Components Letters, vol. 16, no. 10, pp. 567-569, Oct. 2006 [PDF](06-6)

• J. Park, J.P. Kim, and Sangwook Nam, “Network modelling of periodic patch loaded slotline,” IEE Electronics Letters, vol. 42, pp. 288-289, Mar. 2006 [PDF]

• Young-Sang Jeon, and Sangwook Nam, “High-efficiency power amplifier using injection-locked pulsed oscillator with non-deterministic pulse technique,” IEE Electronics Letters, vol. 42, no. 6, Mar. 2006 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Dal Ahn, Yong-Chae Jeong, and Sangwook Nam, “Design of Low-Pass Filters Using Defected Ground Structure,” IEEE Transactions on Microwave Theory and Techniques, vol. 53, no. 8, pp. 2539-2545, Aug. 2005 [PDF]

• Taeho Moon, Byungjoo Lee, Tae-Gon Kim, Jeongmin Oh, Young Woo Noh, Byungwoo Park, and Sangwook Nam, "Microwave dielectric relaxation of the polycrystalline (Ba,Sr)TiO3 thin films," Applied Physics Letters, vol. 86, pp. 182904, Mar. 2005 [PDF]

• Young-Sang Jeon, Hoe-Sung Yang, and Sangwook Nam, "A novel High-Efficiency Linear Transmitter Using Injection-Locked Pulsed Oscillator," IEEE Microwave and Wireless Components Letters, vol. 15, no. 4, pp. 214-216, Apr. 2005 [PDF]

• Jungwon Lee, and Sangwook Nam, "Protecting the Method of Auxiliary Sources(MAS) Solutions From the Interior Resonance Problem," IEEE Microwave and Wireless Components Letters, vol. 15, no. 3, pp. 186-188, Mar. 2005 [PDF]

• Jongkuk Park, Jong-Sik Lim, and Sangwook Nam, "Novel Periodic Structures for a Slotline: Patch Loaded Slotline," IEICE Trans. Electron., vol. E88-C, no. 1, pp. 135-138, Jan. 2005 [PDF]

• Young-Taek Lee, Jaechun Lee, and Sangwook Nam, "A New Phase Noise Reduction Method of Oscillator by Loaded Q Improvement Using Dual Feedback Topology,” IEEE Microwave and Wireless Components Letters, vol. 15, no. 1, pp. 39-41, Jan. 2005 [PDF](06-6)

• Young-Taek Lee, Jaechun Lee, and Sangwook Nam, "High-Q Active Resonators Using Amplifiers and Their Applications to Low Phase-Noise Free-Running and Voltage-Controlled Oscillators," IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 11, pp. 2621-2626, Nov. 2004 [PDF]

• Jong-Sik Lim, Hoe-Sung Yang, Young-Taek Lee, Sungwon Kim, Kwang-Seok Seo, and Sangwook Nam, "E-band Wilkinson balun using CPW MMIC technology," IEE Electronics Letters, vol. 40, no. 14, pp. 879-880, July 2004 [PDF]

• Young-Sang Jeon, Hoe-Sung Yang, and Sangwook Nam, "A Novel EER Structure for Reducing Complexity Using Negative Resistance Amplifier," IEEE Microwave and Wireless Components Letters, vol. 14, no. 5, pp. 195-197, May 2004 [PDF]

• Jong-Sik Lim, Yong-Chae Jeong, Dal Ahn, and Sangwook Nam, "Improvement in Performance of Power Amplifiers by Defected Ground Structure," IEICE Trans. Electron, vol. E87-C, no. 1, pp. 52-59, Jan. 2004 [PDF]

• Yong-Chae Jeong, Si-Gyun Jeong, Jong-Sik Lim, and Sangwook Nam, "A New Method to Suppress Harmonics Using =4 Bias Line Combined by Defected Ground Structure in Power Amplifiers," IEEE Microwave and Wireless Components Letters, vol. 13, no. 12, pp. 538-540, Dec. 2003 [PDF]

• Yonghoon Kim, Gil-Young Lee, and Sangwook Nam, "Efficiency enhancement of microstrip antenna by elevating radiating edges of patch," IEE Electronics Letters, vol. 39, no. 19, pp. 1363-1364, Sept. 2003 [PDF]

• Tae-Gon Kim, Jeongmin Oh, Taeho Moon, Yongjo Kim, Byungwoo Park, Young-Taek Lee, and Sangwook Nam, "Effect of crystallinity on the dielectric loss of sputter-deposited (Ba,Sr)TiO3 thin films in the microwave range," Journal of Materials Research, vol. 18, no. 3 , pp. 682-686, Mar. 2003 [PDF]

• Jong-Sik Lim, Young-Taek Lee, Chul-Soo Kim, Dal Ahn, and Sangwook Nam, "A Vertically Periodic Defected Ground Structure and Its Application in Reducing the Size of Microwave Circuits," IEEE Microwave and Wireless Components Letters, vol. 12, no. 12, pp. 479-481, Dec. 2002 [PDF]

• Jaechun Lee, Young-Taek Lee, and Sangwook Nam, "A Phase Noise Reduction Technique in Microwave Oscillator using High Q Active Filter," IEEE Microwave and Wireless Components Letters, vol. 12, Issue: 11, pp. 426-428, Nov. 2002 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Young-Taek Lee, Dal Ahn, and Sangwook Nam, "Design of lowpass filters using defected ground structure and compensated microstrip line," IEE Electronics Letters, vol. 38, no. 22, pp. 1357-1358, Oct. 2002 [PDF]

• Young-Taek Lee, Jong-Sik Lim, Chul-Soo Kim, Dal Ahn, and Sangwook Nam, "A compact-size microstrip spiral resonator and its application to microwave oscillator," IEEE Microwave and Wireless Components Letters, vol. 12, no. 10, pp. 375-377, Oct. 2002 [PDF]

• Yonghoon Kim, N.J. Farcich, Seong-Cheol Kim, Sangwook Nam, and P.M. Asbeck, "Size reduction of microstrip antenna by elevating the centre of patch," IEE Electronics Letters, vol. 38, no. 20, pp. 1163-1165, Sept. 2002 [PDF]

• Chul-Soo Kim, Jong-Sik Lim, Sangwook Nam, Kwang-Yong Kang, and Dal Ahn, "Equivalent circuit modelling of spiral defected ground structure for microstrip line," IEE Electronics Letters, vol. 38, no. 19, pp. 1109-1110, Sept. 2002 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Young-Taek Lee, Dal Ahn, and Sangwook Nam, "A Spiral-Shaped Defected Ground Structure for Coplanar Waveguide," IEEE Microwave and Wireless Components Letters, vol. 12, no. 9, pp. 330-332, Sept. 2002 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Young-Taek Lee, Dal Ahn, and Sangwook Nam, "Vertically periodic defected ground structure for planar transmission lines," IEE Electronics Letters, vol. 38, no. 15, pp. 803-804, July 2002 [PDF]

• Jong-Sik Lim, Jun-Seok Park, Young-Taek Lee, Dal Ahn, and Sangwook Nam, "Application of Defected Ground Structure in Reducing the Size of Amplifiers," IEEE Microwave and Wireless Components Letters, vol. 12, no. 7, pp. 261-263, July 2002 [PDF]

• Sunghun Kim, Sunyoung Jeong, Young-Taek Lee, Dae-Hyun Kim, Jong-Sik Lim, Kwang-Seok Seo, and Sangwook Nam, "Ultra-wideband (from DC to 110 GHz) CPW to CPS transition," IEE Electronics Letters, vol. 38, no. 13, pp. 622-623, June 2002 [PDF]

• Jong-Sik Lim, Byung-Sung Kim, and Sangwook Nam, "A New Method for the Determination of the Extrinsic Resistances of MESFETs and HEMTs from the Measured S-Parameters under Active Bias," IEICE Trans. Electron, vol. E85-C, no. 3, pp. 839-846, Mar. 2002 [PDF]

• Munkyo Seo, Joo-Yeol Lee, Kyung-Kuk Lee, and Sangwook Nam, "A Varactor-Tuned Oscillator with linear Tuning Characteristic," Microwave Journal, pp. 100-114, Feb. 2002 [PDF]

• Young-Taek Lee, Jong-Sik Lim, Jun-Seok Park, Dal Ahn, and Sangwook Nam, "A Novel Phase Noise Reduction Technique in Oscillators Using Defected Ground Structure,” IEEE Microwave and Wireless Components Letters, vol. 12, no. 2, pp. 39-41, Feb. 2002 [PDF]

• Yonghoon Kim, Heeduck Chae, Jungwon Lee, Jongkuk Park, Seong-Cheol Kim, and Sangwook Nam, "60 GHz band radial line slot array antenna fed by rectangular waveguide," IEE Electronics Letters, vol. 38, no. 2, pp. 59-60, Jan. 2002 [PDF]

• Jungwon Lee, Jongkuk Park, and Sangwook Nam, "Analysis of scattering from 2D penetrable object using iterative FEM with novel mesh truncation," IEE Electronics Letters, vol. 37, no. 24, pp. 1436-1437, Nov. 2001 [PDF]

• Youngsang Jun, Moon-Que Lee, Young-Taek Lee, and Sangwook Nam, "A new design approach for an injection-locked oscillator with an enhanced locking range," Microwave and Optical Technology Letters, vol. 31, no. 5, pp. 325-327, Dec. 2001 [PDF]

• Jongkuk Park, Jungwon Lee, Heeduck Chae, and Sangwook Nam, "An Iterative FEM for Scattering by a 3-D Cavity-Backed Aperture," IEEE Transactions on Microwave Theory and Techniques, vol. 49, no. 11, pp. 2147-2151, Nov. 2001 [PDF]

• Jongkuk Park, Jungwon Lee, Heeduck Chae, and Sangwook Nam, "Iterative FEM for characterising radiating slot in broad wall of rectangular waveguide," IEE Electronics Letters, vol. 37, no. 12, pp. 738~740, June 2001 [PDF]

• Seung-June Yi, Sangwook Nam, Sung-Hoon Oh, and Jae-Hee Han, "Prediction of a CDMA Output Spectrum Based on Intermodulation Products of Two-Tone Test," IEEE Transactions on Microwave Theory and Techniques, vol. 49, no. 5, pp. 938-946, May 2001 [PDF]

• Jong-Sik Lim, Ho-Sup Kim, Jun-Seok Park, Dal Ahn, and Sangwook Nam, "A Power Amplifier with Efficiency Improved Using Defected Ground Structure," IEEE Microwave and Wireless Component Lett., vol. MWCL-11, no. 4, pp. 170 - 172, Apr. 2001 [PDF]

• Jong-Sik Lim, Sung-Won Lee, Chul-Soo Kim, Jun-Seok Park, Dal Ahn, and Sangwook Nam, "A 4:1 Unequal Wilkinson Power Divider," IEEE Microwave and Wireless Component Lett., vol. MWCL-11, no. 3, pp. 124 - 126, Mar. 2001 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Jun-Seok Park, Dal Ahn and Sangwook Nam, "Design of 10dB 90' branch line coupler using microstrip line width defected ground structure," IEE Electronics Letters, vol. 36, no. 21, pp. 1784-1785, Oct. 2000 [PDF]

• Jae-Hee Han and Sangwook Nam, "Power amplifier linearisation using post distortion error canceller based on complex envelope transfer characteristics," IEE Electronics Letters, vol. 36, no. 19, pp. 1665-1666, Sept. 2000 [PDF]

• Jongkuk Park, Heeduck Chae, and Sangwook Nam, "Study of efficient FEM-based iteration method for open region problem and its application to scattering from a three-dimention cavity-backed aperture," IEE Electronics Letters, vol. 36, no. 18, pp. 1529-1530, Aug. 2000 [PDF]

• Jae-Hee Han, Tasik Chung, and Sangwook Nam, "Adaptive predistorter for power amplifier based on real-time estimation of envelope transfer characteristics," IEE Electronics Letters, vol. 35, no. 25, pp. 2167-2168, Dec. 1999 [PDF]

• Jong-Sik Lim, Soon-Young Eom, and Sangwook Nam, "Power divider with various power dividing ratios," IEE Electronics Letters, vol. 35, no. 22, pp. 1961-1963, Oct. 1999 [PDF]

• Jong-Sik Lim and Sangwook Nam, "Optimum line length between microwave circuit modules for flattest transfer characteristic," IEE Electronics Letters, vol. 35, no. 21, pp. 1858-1860, Oct. 1999 [PDF]

• Won-Seok Lee and Sangwook Nam, "Transient interactions between tiny interfacial antennas on half-space lossless dielectric," Radio Science, vol. 34, no. 5, pp. 1027-1041, Sept.-Oct. 1999 [PDF]

• Moon Que Lee, Seung-June Yi, Sangwook Nam, Youngwoo Kwon, and Kyung-Whan Yeom, "High-Efficiency Harmonic Loaded Oscillator with Low Bias Using a Nonlinear Design Approach," IEEE Transactions on Microwave Theory and Techniques, vol. 47, no. 9, pp. 1670-1679, Sept. 1999 [PDF]

• Jongkuk Park, Heeduck Chae, and Sangwook Nam, "Efficient hybrid method for characterization of arbitrary-shaped discontinuities in rectangular waveguide," IEE Electronics Letters, vol. 35, no. 14, pp. 1170-1171, July 1999 [PDF]

• Myun-Joo Park and Sangwook Nam, "Rapid Summation of the Green's Function for the Rectangular Waveguide," IEEE Transactions on Microwave Theory and Techniques, vol. 46, no. 12, Dec. 1998

• Myun-Joo Park and Sangwook Nam, "Efficient Calculation of the Green's Function for Multilayered Planar Periodic Structures," IEEE Transactions on Antennas and Propagation, vol. 46, no. 10, pp. 1582-1583, Oct. 1998 [PDF]

• Jongkuk Park and Sangwook Nam, "A general rigorous analysis of arbitrary-shaped multiaperture-coupled directional coupler between two dissimilar rectangular waveguides crossing with an arbitrary angle," Microwave and Optical Technology Letters, vol. 18, no. 1, pp. 43~46, May 1998

• Myun-Joo Park, Jongkuk Park, and Sangwook Nam, "Efficient calculation of the Green's function for the rectangular cavity," IEEE Microwave and Guided wave Letters, vol. 8, no. 3, pp. 124-126, Mar. 1998

• Myun-Joo Park and Sangwook Nam, "Rapid calculation of the green's function in the shielded planar structures," IEEE Microwave and Guided wave Letters, vol. 7, no. 10, pp. 326-328, Oct. 1997

• Eungsu Kim, Byungsung Kim, and Sangwook Nam, "Analysis of electromagnetic transmission through a choke using FE-BIM with arbitrary incidence Angle/Polarization," IEEE Transactions on Electromagnetic Compatibility, vol. 39, no. 1, pp. 996-999, Feb. 1997

• J.W.Kim, B.S. Kim, S. Nam, and C.W. Lee, "Computation of the average power pattern of a reflector antenna with random surface errors and misallignment errors," IEEE Transactions on Antennas and Propagation, vol. 44, no. 7, pp. 996-999, July 1996

• Myun-Joo Park and Sangwook Nam, "FDTD ABC of waveguides with a new discrete Green's function and its effective implementation," IEE Electronics Letters, vol. 32, no. 23, pp. 2128-2130, Nov. 1996

• Moon-Que Lee and Sangwook Nam, "An accruate broad-band measurement technique of substrate dielectirc constant," IEEE Microwave and Guided Wave Letters, vol. 6, no. 4, pp. 168-170, Apr. 1996

• Sanghoon Choi and Sangwook Nam, "Enhanced feeding structure of micro strip antenna," IEICE Trans. Electron., vol. E78-C, no. 8, pp. 984-987, 1995 [PDF]

• B.-S. Kim, S. Nam and K.-S. Seo, "Analytic intrinsic model based parasitic extraction method for HEMTs," IEE Electronics Letters, vol. 30, no. 12, pp. 1005-1006. 1994

International Conferences

• Young-seok Lee and Sangwook Nam, "Test Count Reduction Algorithm for Determining the Optimal Phase in Wireless Power Transfer using Bayesian Optimization", GASS/URSI, 2023, Aug.19-26[PDF]

• Seongjung kim, Sangwook Nam "Ultra-thin and Wideband Vertically Polarized Tightly Coupled Monopole Array" IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2023, Jul.23~28[PDF]

• Seongjung kim, Sangwook Nam "Realization of Characteristic Excitation Taper for Finite Subarray" URSI International Symposium on Electromagnetic Theory 2023, 2023, May.23~26[PDF]

• Yunsang Shin and Sangwook Nam, "Extraction Algorithm for the Characteristics of the Microwave Connector with Correction Algorithm" 2022 Asia-Pacific Microwave Conference (APMC), 2022. Nov. 29 ~ Dec. 02. [PDF]

• Seongbu Hwang, Taewoo Yu, Sangwook Nam, “Motion Compensation for Body-frame Doppler Estimation of Radar Sensors on Multi-rotor UAV Platforms" 2022 19th European Radar Conference (EuRAD), 2022. Sep. 25~30.[PDF]

• Hyungcheol Kim and Sangwook Nam, “Dual Beam Steering LC-based Holographic Antenna with Coupling Considered Modulation Scheme utilizing Particle Swarm Optimization" IEEE International Symposium on Antennas & Propagation & Radio Science Meeting, 2022. Jul. 10~15.[PDF]

• Hyungcheol Kim and Sangwook Nam, “SIW-Fed Dual-Polarized Magento-Electric Dipole for 6G" The 14th Global Symposium on Millimeter-Waves & Terahertz, 2022. May. 18~20[PDF]

• Seongjung Kim and Sangwook Nam, “Equivalent Circuit Model of Unbalanced Fed Tightly Coupled Dipole Array For Analyzing Even and Odd Modes" European Conference on Antennas and Propagation 2022, 2022. Mar. 27~Apr.1[word]

• Ho Yeol Kim and Sangwook Nam, “Efficient Microwave Wireless Power Transmission using Optimization Algorithm" European Conference on Antennas and Propagation 2022, 2022. Mar. 27~Apr.1[PDF]

• Dong-Woo Kim, Hojung Kang, YongAm Son, Seongjung Kim and Sangwook Nam, “Commercial RFSoC-Based Wideband MIMO- FMCW Radar Design with Effective Pre-distortion" 2022 IEEE Radar Conference, 2022. Mar. 21~25[PDF]

• Taewoo Yu, Joon-Hong Kim and Sangwook Nam, “Implementation of 8 Channels Phase Conjugation on FPGA for Microwave Power Transmission" 2021 International Symposium on Antennas and Propagation, Oct. 2021.[PDF]

• Joon-Hong Kim, Taewoo Yu and Sangwook Nam, " Implementation of Optimal Transmitting Sources for Radiative-Wireless Power Transmission Using Practical Antenna Arrays" 15th European Conference on Antennas and Propagation, 2021.Mar.22~26.[PDF]

• Seongjung Kim and Sangwook Nam, "5G mmWave Low-profile 2 × 2 Planar Array of Tightly Coupled Dipole Subarray Covering FR2" 15th European Conference on Antennas and Propagation, 2021.Mar.22~26[word]

• Seongjung Kim and Sangwook Nam, “New Scheme to realize Ultra-wideband Absorber Based on TCDA-over-TCDA Structure" 2020 International Symposium on Antennas and Propagation, Jan. 2021.[word]

• Joon-Hong Kim, Sangwook Nam, " Study on Efficiency Maximization of Wireless Power Transmission in Fresnsel Region" 2020 Wireless Power Transfer Conference, 2020.Oct.15~19[PDF]

• Ho Yeol Kim, Sangwook Nam, " Method for Maximum Microwave Wireless Power Transmission considering Human Safety" 2020 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2020.Jul.5~10[PDF]

• Kim, Seoungjung, and Sangwook Nam, "Design of TCDA Avoiding Half-wavelength Limitation Using PC" 2020 14th European Conference on Antennas and Propagation, 2020.Mar.15-20[PDF]

• Euncheol Choi, Sangwook Nam, " W-band Low Phase Sensitivity Reflectarray Antennas with Wideband Characteristics," 2019 PhotonIcs & Electromagnetics Research Symposium, 2019.Dec.17~20[PDF]

• Minyoung Yoon, Chanju Park, Sanghoon Jung, Youngjoong Yoon, Youngseek Chung and Sangwook Nam, " 2D conformal wideband phased array antenna system," 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019.Jul.7~12[PDF]

• SeongJung Kim and SangWook Nam, " Effects of a shorting post on the impedance characteristic of TCDA antenna," 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019.Jul.7~12[PDF]

• Euncheol Choi, Sangwook Nam, " W-band Dual-Large-Reflectarray Antenna with Low Sensitivity and Broad Bandwidth Characteristic," 2019 International Symposium on Electromagnetic Theory, 2019.May.27~31[PDF]

• Joon-Hong Kim, Sangwook Nam, "A Compact Multiband Reconfigurable Quasi-Isotropic Antenna with Planar Structure," 2019 URSI Asia Pacific Radio Science Conference, 2019.Mar.09~15[PDF]

• Hanni Koo and Sangwook Nam, " Effect of a Surface Wave in Mutual Coupling for Printed Bow-Tie Antenna Array," 2018 International Symposium on Antennas and Propagations, 2018.Oct.23~26[PDF]

• Seongjung Kim and Sangwook Nam, "Mutual Coupling Reduction Using Resistive Sheets," 2018 International Symposium on Antennas and Propagations, 2018.Oct.23~26[PDF]

• Joon-Hong Kim, Hoyeol Kim, Sangwook Nam, " Electromagnetic Exposure on Human Phantom Model in Time-Reversed Wireless Power Transmission System," 2018 International Symposium on Antennas and Propagations, 2018.Oct.23~26[PDF]

• Doohyun Yang, Sangwook Nam, "Continuously Tapered Sinusoidally Modulated Reactance Surface Antenna," 2018 International Symposium on Antennas and Propagations, 2018.Oct.23~26[PDF]

• Dong-Woo Kim, Sangwook Nam, "MIMO Antenna and Beamforming Algorithm Based on Characteristic Mode of Bilateral Symmetric Structure," 12th Asia-Pacific Engineering Research Forum on Microwave and Electromagnetic Theory, 2018.Oct.12~13[PDF]

• Seongjung Kim and Sangwook Nam, " Metasurface Loss Analysis for 1D TCDA Efficiency Improvement," 2018 Progress in Electromagnetics Research Symposium, 2018.Aug.01~04[PDF]

• Hanni Koo and Sangwook Nam, " Analysis and Elimination Strategy of Scan Blindness in a T-type Printed Dipole Phased Array," 2018 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2018.Jul.08~13[PDF]

• Youngjoon Lim, Bongkyun Seo, and Sangwook Nam, " The Least Common Multiple Sin-Cos Method for FDTD Simulation of Stratified Media at oblique Incidences with Different Frequencies," 2018 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2018.Jul.08~13[PDF]

• Dooheon Yang, Youngjoon Lim, and Sangwook Nam, "Distributed Unit Cell Control of the SMRS Antennas for the Beam Pattern Synthesis and Shaping," 2018 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2018.Jul.08~13[PDF]

• Taewoo Yu, Sangwook Nam, "Design of a waveguide slots array antenna for uniform heating of material in a cavity," 2018 Progress in Electromagnetics Research Symposium, 2018.Aug.01~04[PDF]

• Duksoo Kim and Sangwook Nam, "A Blocker-Tolerant Double Noise-Cancelling Wideband Receiver Front-End Using Linearized Transconductor," 2018 IEEE Radio Frequency Integrated Circuits Symposium, 2018.Jun.10~12[PDF]

• Minyoung Yoon, Sangwook Nam, "Resonance and Group Delay Variation in Tune-time Delay Line," 2017 Korea-Japan Microwave Workshop, 2017.Dec.11~12[PDF]

• Dong-Woo Kim and Sangwook Nam, "Design of Chassis MIMO Antenna Using Characteristic Mode Theory," 2017 International Symposium on Antennas and Propagation, 2017.Oct.30~Nov.02[PDF]

• Dong-Woo Kim and Sangwook Nam, " Analysis of Radio Frequency Interference for a Biomimetic Chassis Mode Antenna," 2017 17th International Conference on Control, Automation and Systems, 2017.Oct.18~20[PDF]

• Duksoo Kim and Sangwook Nam, " A Wideband Receiver Front-End Employing Feedback Input Matching and Feed-Forward Blocker Cancelling," 2017 Radio-Frequency Integration Technology (RFIT), 2017 IEEE International Symposium on, 2017.Aug.30 - Sep.1[PDF]

• Hyunjin Kim, Junsig Kum, Youngju Lee, Jungyup Lee, Taesik Yang, and Sangwook Nam, "5G Vertical and Horizontal Polarized Antenna Integrated with a Metallic Frame of the Cellular Phone", 2017 IEEE International Symposium on Antennas and Propagation and URSI/USNC National Radio Science Meeting, 2017.Jul.09~14[PDF]

• Hakjune Lee and Sangwook Nam, " A Design of 1-D Tightly Coupled Dipole Array," 2017 IEEE International Symposium on Antennas and Propagation and URSI/USNC National Radio Science Meeting, 2017.Jul.09~14[PDF]

• Yoon Goo Kim, Sangwook Nam, "Determination of Impedance Parameters of Multiple Antennas in Half Dielectric Space Using Equivalent Currents", 2017 Asian Workshop on Antennas and Propagation, 2017.Jun.28~30[PDF]

• Jaeyong Ko and Sangwook Nam, "An Integrated Transformer with Reconfigurable S/X-Band Operation in a Single CMOS Power Amplifier," 16th International Symposium on Microwave and Optical Technology, 2017.June.26~28[PDF]

• Joon-Hong Kim, Sangwook Nam, "An Analysis on the Compact Quasi-Isotropic Antenna Using Folded Split Ring Resonator," 2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, 2017.June.20~23[PDF]

• Jaeyong Ko, Sungho Lee and Sangwook Nam, "An S/X-Band CMOS Power Amplifier Using a Transformer-Based Reconfigurable Output Matching Network,” in IEEE Radio Freq. Integr. Circuits Symp. Dig., pp. 344?347, June 2017.[PDF]

• Joon-Hong Kim, Hoyeol Kim, and Sangwook Nam, "Design of a compact quasi-isotroopic antenna for RF energy Harvesting," 2017 IEEE Wireless Power Transfer Conference, 2017.May.10~12[PDF]

• Dong-Woo Kim and Sangwook Nam, "Systematic Design of 3-port Bug-like MIMO Antenna Based on Theory of Characteristic Mode," 2017 European Conference on Antennas and Propagation, 2017.Mar.19~24[PDF]

• Youngjoon Lim, Hoyeol Kim and Sangwook Nam, "A Simple Plane Wave Source for the 3D-FDTD Simulation of Dispersive Layered Media," 2017 IEEE International Conference on Computational Electromagnetics, 2017.Mar.8~10[PDF]

• Yoon Goo Kim and Sangwook Nam, "Determination of Impedance Parameters amomg Antennas near Objects,"11th Asia-Pacific Engineering Research Forum on Microwave and Electromagnetic Theory, 2016.Oct.21~22[PDF]

• Hanni Koo and Sangwook Nam, "Modified L-type eLoran transmitting Antenna for Co-location with an AM Antenna," International Symposium on Antennas and Propagation 2016, 2016.Oct.24~28[PDF]

• Jusun Won, Sangwook Nam, "Charateristic Current Based MIMO Antenna Performance Estimation in Chassis Mode Platform," International Symposium on Antennas and Propagation 2016, 2016.Oct.24~28[PDF]

• Hakjune Lee and Sangwook Nam, " A 3.37:1 Bandwidth and Low-profile Tightly Coupled Array Antenna," International Symposium on Antennas and Propagation 2016, 2016.Oct.24~28[PDF]

• Yongduk Oh, Hakjune Lee, Sangwook Nam, "A Low-profile, Single-Arm Hexagonal Spiral Arrays With a 3:1 Bandwidth on Ground Plane", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Byungjoon Kim, Jong-seop Koo, Duksoo Kim and Sangwook Nam, " A Dual PLL FMCW Radar with a Digital Time Control Technique for High-Resolution Wall-Penetration Application", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Minyoung Yoon, Sangwook Nam, "Avoidance of Off-switch Resonance in True Time Delay Line Using Cascaded Switches", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Seung-In No, Sangwook Nam, " Wide Scan Angle Massive MIMO Antenna for 5G communication", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Jong-Seop Koo, Byungjoon Kim and Sangwook Nam, "Analysis of LO-RF Amplitude Modulation Effect in FMCW Radar", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Jaeyong Ko, Sangwook Nam, "A Reconfigurable Dual-Band CMOS Power Amplifier With an Integrated Switchable Transformer", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Youngjoon Lim, Sangwook Nam, "An FDTD Formulation for Communication Through a Plasma With Linear Density Profile", 2016 URSI Asia-Pacific Radio Science Conference, 2016.Aug.21~25[PDF]

• Jusun Won, Sangwook Nam, " Design of Switched Multimode Antenna on Bug Platform by Using Characteristic Mode Analysis," 2016 IEEE 5th Asia-Pacific Conference on Antennas and Propagation, 2016.Jul.26~29[PDF]

• Joon-Hong Kim, Youngjoon Lim, and Sangwook Nam, "An Electrically Small Quasi- Isotropic Dualband Antenna Using Folded Split Ring Resonator and Parasitic Resonance", 2016 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2016.Jun.26~Jul.01[PDF]

• Joon-Hong Kim, Sangwook Nam, " An Electrically Small Dualband Isotropic Antenna Using Folded Split Ring Resonators," 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility & Signal Integrity and Technical Exhibition, 2016.May.18~21[PDF]

• Dooheon Yang, Byungjoon Kim, Kihyun Kim, Minyoung Yoon and Sangwook Nam, "Isolation Enhanced Multiway Power Divider for Wideband (3:1) Beamforming Array," 2016 10th European Conference on Antennas and Propagation, 2016.Apr.10-15[PDF]

• Joon-Hong Kim, Sangwook Nam, "An Electrically Small Isotropic Antenna Using Folded Split Ring Resonator," 2016 Asia Workshop on Antennas and Propagation, 2016.Jan.27~29[PDF]

• Dong-yeon Kim, Youngjoon Lim, and Sangwook Nam, "Millimeter-Wave Slot Array Antenna Using SIW and Electroforming Techniques," 2015 Asia-Pacific Microwave Conference, 2015.Dec.06~09[PDF]

• Hyunwook Jun, Yoon Goo Kim and Sangwook Nam, "DOA Estimation based on Compressive Sensing using Generalized Scattering Matrix," 2015 Asia-Pacific Microwave Conference, 2015.Dec.06~09[PDF]

• Jae-Hoon Song, Byung-Sung Kim, Sangwook Nam, "A 13 GHz 3:2 Transformer Based Linear Transconductance VCO," International Soc Design Conference 2015, 2015.Nov.2~5[PDF]

• Byungjoon Kim, Duksoo Kim, Youngjoon Lim,Sangwook Nam, Eun-Hyuk Kwak, Boo-Gyoun Kim, Hwanseok Yeo and Jaeha Kim, "A Dual-band FMCW Radar for Through-wall Detection," The 5th Asia-Pacific Conference on Synthetic Aperture Radar, 2015 Sep.01~04[PDF]

• Yu-Shen Ma, Chenglin Cui, Byung-Sung Kim, Jeong-Min Joo, Seung Hoon Jeon and Sangwook Nam, "Road Clutter Spectrum of BSD FMCW Automotive Radar," European Microwave Week 2015, 2015.Sep.6~11[PDF]

• YoungKi Cho, Hyeok Woo Son, Dae Hui Han, Ji Hwan Ko, Sangwook Nam, "Enhancing The Near Field and Transmission Efficiency through Subwavelengh Apertures," 15th International Symposium on Microwave and Optical Technology, 2015.Jun.29-Jun.1[DOCX]

• Sumin Yun and Sangwook Nam, "Tripolarization antenna for DSRC Applications," Progress In Electromagnetics Research Symposium, 2015.Jun.6~9[DOC]

• Jusun Won, Sangwook Nam, "Design of Chassis Antenna for Bug Robot Using Characteristic Mode Analysis," 2015 Asian Workshop on Antennas and Propagation, 2015.Jun.17-18[DOCX]

• Yongjoon Lim, Minyoung Yoon, Sumin Yun, Hyunwook Jun, Sungtek Kahng, Sangwook Nam, "Wall Clutter Mitigation using a Modified Subspace Projection Method for Non-Parallel Measurement Through-the-Wall Radar Imaging," 2015 9th European Conference on Antennas and Propagation, 2015.Apr.12-17[PDF]

• Sumin Yun, Yoongoo Kim, Youngjoon Lim and Sangwook Nam, "Matnetic Tripolarization Antenna for DSRC Applications," International Workshop on Antenna Technology 2015, 2015.Mar.4-6[PDF]

• Yoongoo Kim and Sangwook Nam, "Charaterization of Wireless Power Transfer System in Environment Using Equivalent Currents," International Workshop on Antenna Technology 2015, 2015.Mar.4-6[PDF]

• Jongmin Park and Sangwook Nam, "Analysis of the Finite PEC plate on Wireless Power Transfer using Characteristic Mode Method," 2014 Korea-Japan Microwave Workshop(KJMW-2014), 2014.Dec.4~Dec.5[PDF]

• Jae-Hoon Song, Byung-Sung Kim, Sangwook Nam, "A 24 GHz PMOS Body Voltage Controlled Oscillator with Transformer Coupled Varactor," 11th International Soc Design Conference, 2014.Nov.3~5[PDF]

• Yoon Goo Kim and Sangwook Nam, "Determination of Generalized Scattering Matrix of Antenna from Characteristic Modes," The 10th Asia-Pacific Engineering Research Forum on Microwaves and Electromagnetic Theory, 2014.Oct.31~Nov.1[PDF]

• Hyunjin shim, Jongmin Park, Sangwook Nam and Bomson Lee, "A criterion Proposed for Inductive Coupling and Magnetic Resonance Coupling in Wireless Power Transfer System", 2014 Asia-Pacific Microwave Conference, 2014.Nov.04~07[PDF]

• Jongmin Park, Hyunjin shim, Yoon Goo Kim, Sangwook Nam, "Some Basic Q & A on Wireless Power Transfer", European Microwave Week, 2014.Oct.05~10[PDF]

• S. Yun, S.Nam, "Dual-Band Cavity-Backed Slot Antenna Using Series Resonator", 31st URSI General Assembly and Scientific Symposium, 2014.Aug.16~23[PDF]

• Dong-yeon Kim, Chang-Hyun Park, Bae-Ho Jeong and Sangwook Nam, "Prototype Ku-Band Dual Polarization SIW Monopulse Antenna", Third Asia-Pacific Conference on Antennas and Propagation, 2014.Jul.26~28[PDF]

• Sumin Yun, Yoongoo Kim, Youngjoon Lim, and Sangwook Nam, "Reconfigurable Shorted Patch Antenna Using Via-hole Connection Control", 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2014.Jul.06~11[PDF]

• Yoon Goo Kim, Youngjoon Lim, Sumin Yun, and Sangwook Nam, "Mutual Coupling Analysis of Antennas in Layered Media through Equivalent Sources for Wireless Power Transfer", 2014 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2014.Jul.06~11[PDF]

• Junhyuk Choi, Byungjoon Kim, Duksoo Kim, Jaeyong Ko and Sangwook Nam, "A Dual Band CMOS Power Amplifier for an S/X Band High Resolution Radar System", 2014 IEEE Radio Frequency Intergrated Circuits Symposium 2014, 2014.Jun.1~3[PDF]

• Dong-yeon Kim, Youngjoon Lim, and Sangwook Nam, "Design of a Ka-Band Dual Polarized SIW Slot Array Antenna with Low Mutual Coupling", 7th Global Symposium on Millimeter-Waves 2014, 2014.May.21~23[PDF]

• Hyunwook Jun, Yoongoo Kim, Hyunjin Shim and Sangwook Nam, "Characterization of Dipole Array Antenna Using Generalized-Scattering Matrix and Spherical Mode Analysis", 2014 Asia Workshop on Antennas and Propagation, 2014.May.14-16[PDF]

• Jae-Hoon Song, Byung-Sung Kim, Sangwook Nam, "77 GHz VCO Design Using a Coupled-Line Inductor with Spiral-Shaped EBG Structure", 2014 8th European Conference on Antennas and Propagation, 2014.Apr.6-11[PDF]

• Duksoo Kim, Byungjoon Kim, Junhyuk Choi and Sangwook Nam, "A Current-Mode FIR-Filter-Based Receiver Front-End For Blocker Filtering," Microwave Conference Proceedings (APMC), 2013 Asia-Pacific , vol., no., pp.497,499, 5-8 Nov. 2013[PDF]

• Young-Ki Cho, Jin-Young Choi and Sang-Wook Nam, "Epsilon-near-zero(ENZ)-type transmission resonance through thick and thin slots," 2013 Asia-Pacific Radio Science Conference, Sep. 2013[PDF]

• Sumin Yun, Sangwook Nam, Youngki Cho, "2-port cavity-backed slot antenna for reducing matching loss," URSI Commission B 2013 International Symposium on Electromagnetic Theory, Hiroshima, Japan, pp. 569-570, May 20-24, 2013[PDF]

• Yoon Goo Kim and Sangwook Nam, "Condition for Minimum Scattering Antennas," 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, July. 2013[PDF]

• Sumin Yun and Sangwook Nam, "Miniaturization of Cavity-Backed Crossed-Slot Antenna Using Folded Cavity", 2013 7th European Conference on Antennas and Propagation, 2013.Apr.8-12[PDF]

• Sumin Yun and Sangwook Nam, "Optimum Thickness Distribution of an Inkjet Printed Resonant Line Antenna," International Symposium on Antennas and Propagation, Nagoya, Japan, October 29 ? November 2, 2012[PDF]

• Yoon Goo Kim and Sangwook Nam, "Electromaagnetic Fields near Wireless Power Transfer Systems," 2012 IEEE Antennas and Propagation Society International Symposium (APSURSI), July. 2012[PDF]

• Dong-yeon Kim and Sangwook Nam, "Low Sidelobe Substrate Integrated Waveguide(SIW) Series Slot Array Antenna for 45°- Inclined Linear Polarization," 2012 IEEE Antennas and Propagation Society International Symposium (APSURSI), July. 2012[PDF]

• Youndo Tak, Sumin Yun, Jongmin Park, and Sangwook Nam, "Analysis of a near-field MIMO based on the polarization diversity by using the MODE-BASED approach, " 15th International Symposium of ANtenna Technology and applied ElectroMagnetics , Toulouse, June 25- 28, 2012[DOC]

• Yoon Goo Kim and Sangwook Nam, "Spherical-Mode Analysis of Wireless Power Transfer System," 2012 Korea-Japan EMT/EMC/BE Joint Conference, pp. 209-212, May. 2012[DOC]

• Yoon Goo Kim, Sangwook Nam, “Analysis of Wireless Power Transfer Using Spherical Modes,” 2012 International Workshop on Antenna Technology, Tucson, Arizona, March 5-7, 2012[PDF]

• Kihyun Kim, Jaehoon Song and Sangwook Nam, "Super-Regenerative Receiver for Capsule Endoscopy Application Using Digital Counter," The Asia Pacific Microwave Conference 2011, 2011.12.5-12.8[PDF]

• Sungho Lee, Kyoungwon Min, Seonyoung Lee and Sangwook Nam, “A 24GHz CMOS RF Transceiver for Car Radar Applicaitions,” International Symposium on Antennas and Propagation, Jeju, Korea, October, 2011[PDF]

• Junghee Choi, Jiyoung Chang, and Sangwook Nam, "Design of Wideband/High Efficiency CMOS Power Amplifier for Low Power Application," Korea-Japan Microwave conference, pp. 70-73, Nov. 2011[PDF]

• Youndo Tak, Jongmin Park, Yoongoo Kim, Jiyoung Chang and Sangwook Nam, “Mode-Based Method of Estimating Channel Characteristics for a Near-Field MIMO,” International Symposium on Antennas and Propagation, Jeju, Korea, October 25-28, 2011[PDF]

• Dong-yeon Kim, Sumin Yun, Woo-sung Chung, Chang-hyun Park, Sang-Joo Lee, and Sangwook Nam, “Dual and Linearly Polarized SIW Series Slot Array Antenna for Ka Band,” International Symposium on Antennas and Propagation, Jeju, Korea, October 25-28, 2011[PDF]

• Jongmin Park, Youndo Tak, Kihyun Kim and Sangwook Nam, “Mode Investigation of Adaptive Matching Method for Wireless Power Transfer System Operating at Fixed Frequency,” International Symposium on Antennas and Propagation, Jeju, Korea, October 25-28, 2011[PDF]

• Byungjoon Kim, Duksoo Kim, Jaehoon Song, Jaeyoung Ko, and Sangwook Nam, “A High Selectivity Tunable LNA with High Q Series Resonance for an SDR Receiver,” International Symposium on Antennas and Propagation, Jeju, Korea, October 25-28, 2011[PDF]

• Jae-hoon Song, Sangwook Nam, "Q-band VCO and Injection-locked Buffer for 77-GHz Automotive Radar System in 0.13-μm CMOS," Asia-Pacific Conference on Synthetic Aperture Radar, Seoul, Korea, September 26-30,2011[PDF]

• Jiyoung Chang, Kihyun Kim, Sungho Lee, Sangwook Nam, " 24 GHz Stacked Power Amplifier With Optimum Inter-stage Matching Using 0.13μm CMOS Process," Asia-Pacific Conference on Synthetic Aperture Radar, Seoul, Korea, September 26-30,2011[PDF]

• Sumin Yun and Sangwook Nam, "Antenna Efficiency Measurement Using Q Method in Lossy Medium," 2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, July.2011.

• Yoon Goo Kim and Sangwook Nam, "Enhancement of the near-field coupling using the higher order spherical mode," The 5th International Conference on Surface Plasmon Photonics, 2011.5.15 - 5.20[PDF]

• Junghee Choi, Kihyun Kim, and Sangwook Nam, "A Low Power CMOS Chirp-Spread-Spectrum OOK Transmitter for In-Body Communication", 2011 Asia-Pacific EMC Symposium, May. 2011[PDF]

• Jaejun Lee, Byungjoon Kim and Sangwook Nam, "Propagation Velocity Equalizer Circuit on Multi Microstrip Transmission Line Structure", 2011 5th European Conference on Antennas and Propagation, pp.2475-2477, 2011.Apr.11-15[PDF]

• Dong-yeon Kim and Sangwook Nam, "A Ka Band Planar Slot Array Antenna for 45 Degree Linear Polarization Using Substrate Integrated Waveguide", 2011 5th European Conference on Antennas and Propagation, pp.2351-2353, 2011.Apr.11-15[PDF]

• Young-ki Cho, Ji-whan Ko, Hyun-sung Hong, Jong-hwan Lee and Sangwook Nam, "Electromagnetic Scattering by a Two-Dimensional Periodic Array of Small Resonant Apertures," 2010 International Symposium on Antennas and Propagation, November.2010[PDF]

• Sungho Lee, Joontae Park, Yonghoon Song and Sangwook Nam "A Novel Mixed-Mode LINC Architecture For Efficiency Enhancement," European Microwave Week 2010, 2009.9.26-10.1[PDF]

• Jongmin Park, Youndo Tak, Yoongoo Kim and Sangwook Nam, "Investigation of Adaptive Matching by the Frequency Tracking Method for Wireless Power Transfer," 2010 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, July.2010[PDF]

• Jaehee Lee, Youndo Tak, Jungsim Roh, Taejin Kang and Sangwook Nam, "Design of Wearable Multi-resonance Folded Dipole Antenna for FM Reception Using Conductive Textile," 2010 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, July.2010[PDF]

• Kihyun Kim, Sungho Lee, Eunil Cho, Junghee Choi and Sangwook Nam, "Design of OOK System for Wireless Capsule Endoscopy," IEEE International Symposium on Circuits and System 2010, 2010.5.30 - 6.2[PDF]

• Jaejun Lee, Sungho Lee, Joontae Park and Sangwook Nam, "Architecture of a Multi-slot Main Memory System for 3.2 Gbps Operation," IEEE International Symposium on Circuits and System 2010, 2010.5.30 - 6.2[PDF]

• Eunil Cho, Yonghoon Song, Sungho Lee, Joontae Park, and Sangwook Nam, "Design of An Efficient CMOS Power Amplifier Using Differential and Single-ended Power-combining Technique," Global Symposium on Milimeter Wave 2010, pp.287-290, April. 2010[PDF]

• Yanging Zhou, Huang Guochi, Seong-Kyun Kim, Sangwook Nam and Byung-sung Kim "A Wideband OOK Receiver for Wireless Capsule Endoscope," Eureopean Microwave Week 2009, 2009.9.28-10.2[PDF]

• Yonghoon Song, Sungho Lee, Jaejun Lee and Sangwook Nam, "A 29 dBm CMOS Class-E Power Amplifier with 63% PAE Using Negative Capacitance," 2009 Custom Itegrated Circuits Conference, Sep.2009[PDF]

• Joontae Park, Kihyun Kim, Eunil Cho and Sangwook Nam, "Analysis of a Substrate Leakage Current at MMIC," The 34th International Conference on Infrared,Millimeter, and Terahertz Waves, Paradise Hotel, Busan, Sep.2009[PDF]

• Yoon-Myoung Gimm, Sangwook Nam, Ohyoung Kim and Geun-Wu Gimm "Conceptual Design of a Miniature High Frequency Magnetic Fields Measurement System in Human," 2009 International Symposium on Electromagnetic Compatibility, Kyoto, July.2009[ZIP]

• Youndo Tak, Jongmin Park and Sangwook Nam, "Equivalent Circuit of a Two-Element Spherical Small Antenna," 2009 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, June.2009[PDF]

• Youndo Tak, Sumin Yun and Sangwook Nam, "Folded Planar Dipole Antenna for Wideband WBAN Applications," 2009 Korea-Japan Joint Conference on AP/EMC/EMT, May. 2009[PDF]

• Yonghoon Song, Sungho Lee, Jaejun Lee and Sangwook Nam, "A New Line Architecture with Efficiency Enhancement for OFDM Signal," IEEE Topical Symposium on Power Amplifiers for Wireless Communications 2009, Jan. 2009[PDF]

• Sungho Lee, Yonghoon Song and Sangwook Nam, "Fast RSSI Circuit Using Novel Power Detector for Wireless Communication," 2008 International SoC Design Conference, pp. 9-12, Nov. 2008[PDF]

• Jukyung Cha, Youngsang Jun, and Sangwook Nam, "High Speed Dynamic Bias Switching Power Amplifier for OFDM Applications," EuMW 2008, Oct. 2008[PDF]

• Hangue Park, Sungho Lee, and Sangwook Nam, "An Inductorless CMOS 0.1-1GHz Automatic Gain Control Circuit," EuMW 2008, Oct. 2008[PDF]

• Yanping Zhou, Guochi Huang, Sangwook Nam and Byung-Sung Kim, "A Novel Wide-Band Envelope Detector," IEEE RFIC Symposium 2008, pp. 219-222, June. 2008[PDF]

• Yonghoon Kim, Kyung Heon Koo, and Sangwook Nam, "Method of Auxiliary Sources for the Analysis of Insulated Wire Antennas," IEEE AP-S International Symposium 2008, July. 2008[PDF]

• Jaechun Lee and Sangwook Nam, "Q Evaluation of Small Insulated Antennas in a Lossy Medium and Practical Radiation Efficiency Estimation," Korea-Japan MicroWave conference, pp. 65-68, Nov. 2007[PDF]

• Eunsub Shim, Jaehong Park, Wooyel Choi, Youngmin Kim, Youngwoo Kwon, Jongseon NO, Sangwook Nam, and Dongil "Dan" Cho, "Hot-Switching Test of Non-Contact Type Mems Switch," IEEE MTT-S International Microwave Symposium Digest, pp. 1809-1812, June 2007[PDF]

• SungMin Kang, SangWook Nam, and KyungHeon Koo, "Adaptive Linearization of Frequency Double Using DGS," IEEE MTT-S International Microwave Symposium Digest, pp. 1225-1228, June 2007[PDF]

• Jiho Ryu, Minchul Kim, Jaechun Lee, Moon-Que Lee, Byung-Sung Kim, and Sangwook Nam, "Low Power OOK Transmitter for Wireless Capsule Endoscope," IEEE MTT-S International Microwave Symposium Digest, pp. 855-858, June 2007[PDF]

• Jungsuek Oh, Jongmin Park, Hanseung Lee and Sangwook Nam, "The Electrode structure to reduce channel loss for Human Body Communication Using Human Body as Transmission Medium," IEEE AP-S International Symposium 2007, pp. 1517-1520, June 2007[PDF]

• Heeduck Chae, Hanseung Lee, Yonghoon Kim, and Sangwook Nam, "Efficient Computation of Impedance Matrix 1-Dimensional Periodic Planar Structures Using Rooftop Functions," IEEE AP-S International Symposium 2007, pp. 5007-5010, June 2007[PDF]

• Young-Sang Jeon, Kyungheon Koo,and Sangwook Nam, "Pulse Area Modulation for High-Efficiency Power Amplifiers," IEEE Topical Symposium on Power Amplifiers for Wireless Communications 2007, Jan. 2007 [PDF]

• Heeduck Chae, Yonghoon Kim, Gil-Young Lee, and Sangwook Nam, "Analysis of periodically loaded structure and application to leaky wave antennas," Korea Japan Joint conference on AP/EMC/EMT, pp. 173-176, Sept. 2006 [PDF]

• Heeduck Chae, Yonghoon Kim, and Sangwook Nam, " Efficient computation of the one-dimensional periodic green’s function in a multilayered medium using the Ewald method," Korea Japan Joint conference on AP/EMC/EMT, pp. 285-288, Sept. 2006 [PDF]

• Young-Sang Jeon, Jukyung Cha, Sangwook Nam, and Kyung Heon Koo, "High-Efficiency Power Amplifier Using Novel High-Speed Bias Switching," IEEE Topical Workshop on Power Amplifiers for Wireless Communications, Jan. 2006 [PDF]

• Hyojun Kim, Yonghoon Kim, Jaechun Lee, Seung Jun Lee, and Sangwook Nam, "Rectangular Waveguide Antenna of Square Aperture Using Artificial Magnetic Conductor," USNC/URSI National Radio Science Meeting Digest, pp. 6, 2005 [PDF]

• Donghoon Shin, Il-Suek Koh, and Sangwook Nam, "Spatially Focusing Electromagnetic Field in a Multi-Path Environment Using Time-reversal," IEEE AP-S International Symposium Digest, vol. 3A, pp. 321-324, 2005 [PDF]

• Seungjun Lee, Jong-Sik Lim, Hoe-sung Yang, and Sangwook Nam, "A Novel Design of Balun using Left-Handed Transmission Line," Proceedings of ISAP 2005, Seoul, Korea, pp. 503-506, Aug. 2005 [PDF]

• Seung-Jun Lee, Yonghoon Kim, Jukyung Cha and Sangwook Nam, "A Novel Design of Waveguide Dual Beam Antenna," International Joint Conference of the 7th Topical Symposium on Millimeter Waves / the 6th MINT Millimeter-Wave International Symposium Digest, pp. 223-226, Feb. 2005 [PDF]

• Jungwon Lee and Sangwook Nam, "The Method of Auxiliary Sources for Two Dimensional Transient Scattering Analysis," Korea Japan Joint conference on AP/EMC/EMT, Nov. 2004 [PDF]

• Jongkuk Park, Jungwon Lee, and Sangwook Nam, "An Iterative FEM with Fast Multipole Updates for Scattering from an Electrically Large Object," Korea Japan Joint conference on AP/EMC/EMT, Nov. 2004 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Yong-Chae Jeong, Dal Ahn, and Sangwook Nam, "An Advanced Equivalent Circuit of Spiral-Shaped Defected Ground Structure," 34th European Microwave Conference Proceedings, Amsterdam, pp. 1357-1360, Oct. 2004 [PDF]

• Jong-Sik Lim, Hoe-Sung Yang, Young-Taek Lee, Sungwon Kim, Kwang-Seok Seo, and Sangwook Nam, "A 77GHz CPW Balun Using Wilkinson Structure," 34th European Microwave Conference Proceedings, Amsterdam, pp. 377-380, Oct. 2004 [PDF]

• Gil-Young Lee, Heeduck Chae, Yonghoon Kim, and Sangwook Nam, " Frequency-fixed beam steerable microstrip leaky wave antenna using periodic varactor loading," Proceedings of ISAP, 2004 [PDF]

• Jungwon Lee and Sangwook Nam, " The Method of Auxiliary Sources (MAS) for Three Dimensional Time Domain Scattering Analysis," USNC/URSI Digest, pp. 355, 2004 [PDF]

• Heeduck Chae, Yonghoon Kim, Hyojun Kim, and Sangwook Nam, " Design of Dual-Band Dual-Polarized Antenna with Frequency Selective Surface Cover and Artificial Impedance Surface," USNC/URSI Digest, pp. 187, 2004 [PDF]

• Young-Taek Lee, Jaechun Lee, and Sangwook Nam, "New Planar High Q Active Resonator and Its Application to Low Phase Noise Oscillator," IEEE MTT-S International Microwave Symposium Digest, vol. 3, pp. 2007-2010, 2004 [PDF]

• Hyojun Kim, Heeduck Chae, Ji-Hoon Bae, Cheol-Sig Pyo and Sangwook Nam, "A Novel Design of Parallel Plate Antenna Using One Dimensional Reflectarray," International Joint Conference of the 6th Topical Symposium on Millimeter Waves / the 5th MINT Millimeter-Wave International Symposium Digest, pp. 106-109, Feb. 2004 [PDF]

• Jaechun Lee, Young-Taek Lee, and Sangwook Nam, "A New Cavity Power Combining Technique for Planar Circuit Sources," Proceedings of Asia Pacific Microwave Conference, vol. 3, pp. 1817-1820, Nov. 2003 [PDF]

• Heeduck Chae, Jong-Sik Lim, Cheol-Sig Pyo, Soon-Ick Jeon, Ji-Hoon Bae, and Sangwook Nam, "Analysis of Periodically Loaded Defected Ground Structure and Application to Leaky Wave Antennas," Proceedings of Asia Pacific Microwave Conference, vol. 1, pp. 22-24, Nov. 2003 [PDF]

• Jong-Sik Lim, Yong-Chae Jeong, Dal Ahn, Young-Taek Lee, Hyoungrae Cho, and Sangwook Nam, "SIZE-REDUCTION AND HARMONIC-REJECTION OF MICROWAVE AMPLIFIRES USING SPIRAL-DEFECTED GROUND STRUCTURE," Proceedings of European Microwave Conference, pp. 1421-1424, Oct. 2003 [PDF]

• Jong-Sik Lim, Sunyoung Jeong, Young-Taek Lee, Sungwon Kim, Kwang-Seok Seo, and Sangwook Nam, "E-BAND CPW RING HYBRID USING AN OVERLAPPED COUPLING STRUCTURE," Proceedings of European Microwave Conference, pp. 327-330, Oct. 2003 [PDF]

• Yonghoon Kim, Jungwon Lee, Jongkuk Park and Sangwook Nam, "Analysis and Design of V-Band Radial Line Slot Array Antenna Fed by a Rectangular Waveguide," The 5th Topical Symposium on Millimeter Waves, pp. 89-92, Mar. 2003 [PDF]

• Gil-Young Lee, Jong-Sik Lim, Yonghoon Kim, and Sangwook Nam, "Size reduction of microstrip-fed slot antenna by inductive and capacitive loading," IEEE AP-S International Symposium Digest, vol. 1, pp. 312-315, 2003 [PDF]

• Young-Taek Lee, Jong-Sik Lim, Sungwon Kim, Jaechun Lee, Sangwook Nam, Kwang-Seok Seo, and Dal Ahn, "Application of CPW Based Spiral-Shaped Defected Ground Structure to The Reduction of Phase Noise in V-Band MMIC Oscillator," IEEE MTT-S International Microwave Symposium Digest, vol. 3, pp. 2253-2256, 2003 [PDF]

• Jungwon Lee, Jongkuk Park, and Sangwook Nam, "Analysis of scattering from a 3-D doubly periodic cavity array using iterative FEM," Proceedings of Korea Japan Microwave Workshop, pp. 77-80, Oct. 2002 [PDF]

• Jong-Sik Lim, Chul-Soo Kim, Young-Tack Lee, Dal Ahn, and Sangwook Nam, "A New Type of Low Pass Filter With Defected Ground Structure," Proceedings of European Microwave Conference, pp. 33-36, 2002 [PDF]

• Jae-Hee Han, Duck-Hee Lee, Sangwook Nam, and Jong-Sik Lim, "A New Estimation Method of Power Amplifier's Amplitude and Phase Errors for Adaptive Linearizer using Analog Circuitry," Proceedings of European Microwave Conference, pp. 103-106, 2002 [PDF]

• Jong-Sik Lim, Young-Tack Lee, Chul-Soo kim, Dal Ahn, and Sangwook Nam, "A Method to Shorten the Size of Amplifiers Using Vertically Periodic Defected Ground Structure," Proceedings of European Microwave Conference, pp. 159-162, 2002 [PDF]

• Nam Koo Kang, Seong Cheol Kim, and Sangwook Nam, "Reflection coefficient calculation of a feeder structure in a RLSA," IEEE AP-S International Symposium Digest, pp. 538-541, 2002 [PDF]

• Jongkuk Park, Jungwon Lee, Sangwook Nam, Hyunggi Na, and Jonghoon Chun, "An iterative FEM with fast multipole updates for scattering from a large 3D cavity-backed aperture," USNC/URSI Digest, pp. 87, 2002 [PDF]

• Yonghoon Kim, N.J. Farcich, Jungwon Lee, Sangwook Nam, and P.M. Asbeck, "Corrugated patch antennas on plastic substrates," USNC/URSI Digest, pp. 365, 2002 [PDF]

• P.M.Asbeck, H.Kobayashi, M.Iwamoto, G.Hanington, S.Nam, and L.E.Larson, "Augmented Behavioral Characterization for Modeling the Nonlinear Response of Power Amplifiers," IEEE MTT-S International Microwave Symposium Digest, vol. 1, pp. 135-137, 2002 [PDF]

• Jong-Sik Lim, Young-Tack Lee, Jae-Hee Han, Jun-Seok Park, Dal Ahn, and Sangwook Nam, "A Technique for Reducing the Size of Amplifiers Using Defected Ground Structure," IEEE MTT-S International Microwave Symposium Digest, vol. 2, pp. 1153-1156, 2002 [PDF]

• Chul-Soo Kim, Jong-Sik Lim, Sangwook Nam, Kwang-Yong Kang, Jong-Im Park, Geun-Young Kim, and Dal Ahn, "The Equivalent Circuit Modeling of Defected Ground Structure with Spiral Shape," IEEE MTT-S International Microwave Symposium Digest, vol. 3, pp. 2125-2128, 2002 [PDF]

• Jae-Hee Han, Duck-Hee Lee, Sangwook Nam, and Jong-Sik Lim, "Post-distortion Linearizer For Multicarrier Power Amplifiers Using A Fifth-order Error Signal Generator," Proceedings of Asia Pacific Microwave Conference, pp. 272-275, Dec. 2001 [PDF]

• P.M. Asbeck, H. Kobayashi, M. Iwamoto, G. Hanington, S. Nam, and L.E Larson, "Augmented band-pass nonlinear model for power amplifier characterization," Proceedings of IEEE Topical Workshop on Power Amplifiers for Wireless Communications, Sept. 2001 [PDF]

• Jae-Hee Han, Duck-Hee Lee, Jong-Sik Lim, Sangwook Nam, and S. Kang, "Adaptive postdistorter linearizer for RF power amplifier using its complex envelope transfer characteristics," Proceedings of IEEE Topical Workshop on Power Amplifiers for Wireless Communications, Sept. 2001 [PDF]

• Juhyung Lee, Joonho Byun, and Sangwook Nam, "FDTD calculation of SAR for the monopole antenna on the conducting box with the metallic folder," IEEE AP-S International Symposium Digest, pp. 80-83, July 2001 [PDF]

• Jongkuk Park, Jungwon Lee, Heeduck Chae, and Sangwook Nam, " Analysis of scattering from a large arbitrary-shaped conducting cylinder by iterative FEM with fast multipole updates," USNC/URSI Digest, pp. 195, 2001 [PDF]

• Heeduck Chae, Sangwook Nam, "Multiple beam Antennas using Folded Reflectarray," Proceedings of Progress in Electromagnetic Research Symposium, pp. 54, July 2001 [PDF]

• Jong-Sik Lim, Soon-Young Eom, Jae-Hee Han, Seong-Hoon Kim, Deok-Hee Lee, and Sangwook Nam, "A New Balanced Amplifier using 6-Port Power Divider,” IEEE MTT-S International Microwave Symposium Digest, vol. 2, pp. 1301-1304, 2001 [PDF]

• Jaechun Lee, Jongkuk Park, Changdon Kee, and Sangwook Nam, "Variable HPBW helical antenna for indoor navigation system," Proceedings of GNSS Workshop Int. Symp. on GPS/GNSS, Dec. 2000 [PDF]

• Jongkuk Park, Sangwook Nam, "A Study On The Efficient FEM-Based Iteration Method For The Open Region Problem And Its Applications To Scattering By Three Dimensional Cavity-Backed Apertures," Proceedings of Asia Pacific Microwave Conference, pp. 437-440, 2000 [PDF]

• Jong-Sik Lim, Byung-Sung Kim, and Sangwook Nam, "An Equivalent Circuit With The Physical Structure Of Depletion Region Considered For Determination The Parasitic Capacitances Of MESFETs And HEMTs," Proceedings of Asia Pacific Microwave Conference, pp. 859-862, 2000 [PDF]

• Young-Taek Lee, Sangwook Nam,"Low Noise Oscillator Design Using Upconversion Gain Analysis," Proceedings of Asia Pacific Microwave Conference, pp. 1105-1108, 2000 [PDF]

• Chul-Soo Kim, Jong-Sik Lim, Jun-Seok Park, Dal Ahn, and Sangwook Nam, "A 10dB Branch Line Coupler Using Defected Ground Structure," Proceedings of European Microwave Conference, vol. 3, pp. 68-71, Oct. 2000 [PDF]

• Won-Seok Lee and Sangwook Nam, "Far-field approximation of the interfacial fields generated by a tiny current source on a uniaxially anisotropic half-space dielectric," Proceedings of ISAP, vol. 2, pp. 835-838, Aug. 2000 [PDF]

• Jongkuk Park, Heeduck Chae, and Sangwook Nam, "A study on the efficient FEM-based hybrid method for the open region problem and its applications to characterizing radiating slots in a broad wall of a rectangular waveguide," USNC/URSI Digest, pp. 263, July 2000 [PDF]

• Jong-Sik Lim, Sung-Choon Kang, and Sangwook Nam, "MMIC 1 Watt Wideband Power Amplifier Chip Set Using pHEMT Technology For 20/30 GHz Communication Systems," Proceedings of Asia Pacific Microwave Conference vol. 2, pp. 425-428, 1999 [PDF]

• Moon Que Lee and Sangwook Nam, "Nonlinear design of low phase noise voltage controlled oscillator for mobile communication system," Proceedings of European Microwave Conference, vol. 2, pp. 384-387, 1999 [PDF]

• Won-Seok Lee and Sangwook Nam, "The Efficacy of a Thick Dielectric Coating for Time-domain Buried-interface Survey," Proceedings of Progress in Electromagnetic Research Symposium, pp. 212, Mar. 1999 [PDF]

• Moon-Que Lee and Sangwook Nam, "An Improved Voltage Controlled Oscillator for Mobile Communication Systems," Proceedings of Asia Pacific Microwave Conference, pp. 151-154, vol. 1, 1998

• Myun-Joo Park and Sangwook Nam, "Rapid Calculation of the Green's Function for the Analysis of Periodic Frequency Selective Surfaces with Planar Multilayered Structures," Proceedings of Korea-Japan AP/EMC/EMT Joint Conference, pp. 88-91, Sept. 3-5, 1998

• Jong-Sik Lee, Myun-Joo Park, Byung-Sung Kim, and Sangwook Nam, "Quasi-Static Analysis of 2-D Periodic Structures in VLSI interconnects," Proceedings of Progress in Electromagnetic Research Symposium, pp. 621, July 13-17, 1998

• Myun-Joo Park and Sangwook Nam, "Efficient Representation of the Rectangular Waveguide and Cavity Green's Function." Proceedings of Progress in Electromagnetic Research Symposium, pp. 282, July 13-17, 1998

• Moon-Que Lee, Sangwook Nam, Kyung-Whan Yeom, and Kyu-Tae Kim, "Design of cryogenic(4.2K) X-band HEMT oscillator for Josephson voltage standard," IEEE MTT-S International Microwave Symposium Digest, pp. 1031-1034, 1998

• Seung-June Yi, Byung-Sung Kim, and Sangwook Nam, "Design of high efficiency power amplifier using DC and small S-parameter measurements," Proceedings of Asia Pacific Microwave Conference, pp. 513-516, vol. 2, 1997

• M. Seo, S .Nam, and Y. Kwon, "New method for the evaluation of linear subnetwork in nonlinear autonomous microwave circuit analysis by piecewise harmonic balance technique," Proceedings of European Micrewave Conference, pp. 798-803, vol. 2, 1997

• Moon-Que Lee, Sangwook Nam, Youngwoo Kwon, and Kyung-Whan Yeom, "Analytic design of high efficiency harmonic loading oscillator using harmonic two signal method," IEEE MTT-S International Microwave Symposium Digest, pp. 1495-1498, 1997

• Myun-Joo Park and Sangwook Nam, "Efficient calculation of the green's function in rectangular waveguides," IEEE AP-S International Symposium Digest, pp. 2354-2357, 1997

• Jongkuk Park and Sangwook Nam, "Analysis of arbitrary shaped crossectional discontinuity in rectangualr waveguides using FEM-BIM with triangular prism elements," IEEE AP-S International Symposium Digest, pp. 672-675, 1997

• Myun-Joo Park and Sangwook Nam, "FDTD model field generation and absorption in homogeneous waveguides with arbitrary crosscetion," IEEE AP-S International Symposium Digest, pp.1308-1311, 1996

• Byungsung Kim and Sangwook Nam, "Nonlinear transmission line as a large signal model for HEMT," Proceedings of European Microwave Conference, pp. 264-267, 1996

• Byungsung Kim and Sangwook Nam, "An iterative parasitic extraction method for HEMT," Proceedings of European Microwave Conference, pp. 558-561, 1995

• Moon-Que Lee and Sangwook Nam, "Efficient coupling patterns design of miniaturized dielectric filter using EM simulator and EPO technique," IEEE MTT-S International Microwave Symposium Digest, pp. 737-740, 1996

• YoungChul Sung, Sanghoon Choi, and Sangwook Nam, "Finite element analysis of microstrip line on ferrolectric (Ba-Sr)TiO3 substrate," Proceedings of IEEE MTT-S International Microwave Symposium, pp. 1261-1264. 1995

• Eungsu Kim, Byungsung Kim, and Sangwook Nam, "Electromagnetic transmission through a thick slit with arbitrary incident angle/polarization," Proceedings of Asia Pacific Microwave Conference, pp. 272-275, 1995

• Wonseok Lee and Sangwook Nam, "Characteristics of strip dipole antenna without ground plane fed by BALUN structure," Proceedings of Asia Pacific Microwave Conference, pp. 647-649, 1995

• Eungsu Kim, Byungsung Kim, and Sangwook Nam, "Analysis of electromagnetic transmission through choke using FE-BIM with arbitrary incidence angle/polarization," IEEE AP-S International Symposium Digest, pp.64-67, June, 1995

• Daein Jeon, Bierng Chearl Ahn, and Sangwook Nam, "Moment method analysis of a crossed slot directional coupler," ISEM Conference Digest, pp. 36, June 1994

• Juhyung Lee and Sangwook Nam, "Design of E-plane monopulse feeder using multimode corrugated rectangular waveguide," IEEE AP-S International Symposium Digest, pp. 982-985, 1994

• Sanghoon Choi and Sangwook Nam "Analysis of waveguide-fed slot-coupled microstrip antenna," Proceedings of Asia Pacific Microwave Conference, pp. 1125-1128, 1994

• Park, Myunjoo and Nam, Sangwook, "Analysis and measurement of the coupling characteristics of the stacked circular microstrip antenna with parasitic element," Proceedings of Asia Pacific Communication and Conference, pp. 422-426, 1993

• Moon-Hee Chung and Sangwook Nam "Analysis of a rectangular patch antenna coupled by microstrip feedline gap discontinuity," IEEE AP-S International Symposium Digest, pp. 1236-1239, 1993

International Patents

• 제목: 안테나 유닛 및 이를 포함하는 배열 안테나
  출원번호: PCT/KR2022/011819
  출원일자: 2022년 8월 9일
  
  

• 제목: 고효율 광대역 안테나(ANTENNA HAVING BROAD BANDWIDTH AND HIGH RADIATION EFFICIENCY)
  미국특허 등록번호: 9843100
  미국특허 등록일자: 2017년 12월 12일
  
  

• 제목: 송, 수신기 각각을 위한 최적 임피던스를 갖는 2-포트 안테나(2-PORT ANTENNA HAVING OPTIMUM IMPEDANCES OF A TRANSMITTER AND A RECEIVER)
  미국특허 등록번호: 9722317
  미국특허 등록일자: 2017년 08월 1일
  
  

• 제목: 고효율 광대역 안테나(ANTENNA HAVING BROAD BANDWIDTH AND HIGH RADIATION EFFICIENCY)
  일본특허 등록번호: 6148477
  일본특허 등록일자: 2017년 05월 26일
  
  

• 제목: Class E Power Amplifier
  미국특허 출원번호: PCT/KR2013/008763
  미국특허 출원일자: 2013년 09월 30일
  미국특허 등록번호: US 8,704,601 B1
  미국특허 등록일자: 2014년 04월 22일
  
  

• 제목: 무선으로 전력을 전송하는 방법, 시스템 및 컴퓨터 판독 가능한 기록 매체
  미국특허 출원번호: PCT/KR2013/008763
  미국특허 출원일자: 2013년 09월 30일
  
  

• 제목: METHOD AND APPARATUS FOR TRANSMITTING MULTI-RADIO POWER USING TIME DIVISION MODE
  미국특허 출원번호: 제13/578,851호
  미국특허 출원일자: 2012년 08월 14일
  
  

• 제목: METHOD, SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR TRANSFERRING WIRELESS POWER BY USING ANTENNAS WITH HIGH ORDERS OF SPHERICAL MODES
  미국특허 출원번호: 제13/397,522호
  미국특허 출원일자: 2012년 02월 15일
  미국특허 등록번호: US 9,225,203 B2
  미국특허 등록일자: 2015년 12월 29일
  
  

• 제목: 시간 분할 방식을 이용한 다중 무선 전력 전송 방법 및 시스템
  출원번호: PCT/KR2011/001025
  출원일자: 2011년 02월 16일
  
  

• 제목: E급 전력 증폭기
  출원번호: PCT/KR2010/008977
  출원일자: 2010년 12월 15일
  
  

• 제목: Enhanced Chireix Combiner
  출원번호: PCT/KR2008/007493
  출원일자: 2008년 12월 17일
  
  

• 제목: APPARATUS FOR ELIMINATING HARMONIC COMPONENTS ON HIGH-EFFICENCY LINEAR POWER AMPLIFIER SYSTEM USING DELAY ELEMENTS
  출원번호: PCT/KR2007/000310
  출원일자: 2007년 1월 19일
  
  

• 제목: PULSE AREA MODULATION AND HIGH-EFFICIENCY LINEAR AMPLIFIER SYSTEM USING THE SAME
  출원번호: PCT/KR2007/000309
  출원일자: 2007년 1월 19일
  유럽특허 출원번호: 07 701 016.3
  유럽특허 출원일자: 2008년 9월 10일
  유럽특허 등록번호: 2016674
  유럽특허 등록일자: 2012년 11월 07일
  미국특허 출원번호: 제12/266,207호
  미국특허 출원일자: 2008년 10월 10일
  미국특허 등록번호: US 7,884,667 B2
  미국특허 등록일자: 2011년 02월 08일