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  • J. Lee, J.H. Jeon, Y.-G. Kim, S.Q. Lee, W.S. Yang, J.S. Lee and S.-G. Lee, ‘TiN/PECVD-Si3N4/TiN diaphragm-based capacitive-type MEMS acoustic sensor’ ELECTRONICS LETTERS, vol. 52, 2016, pp. 468–470, Mar. 2016
  • Y.-S. Won, C.-H. Kim, H.-I. Lee and S.-G. Lee, “Tunable triangular pulse-generator for ISM band radar,” ELECTRONICS LETTERS 21st July 2016 Vol.52 No.15 pp.1334-1336.
  • Seong Joong Kim, DongSoo Lee, Kang-Yoon Lee, Sang-Gug Lee, 'A 2.4-GHz Super-Regenerative Transceiver With Selectivity-Improving Dual Q-Enhancement Architecture and 102-μW All-Digital FLL,' IEEE Transactions on Microwave Theory and Techniques (Volume: PP, Issue: 99)  Feb. 2017
  • Younghun Ko, Hong-Soo Cho, Sang-Sung Lee, So-Bong Shin, Yongchul Song and Sang-Gug Lee, “A Compact Flicker-Free Transformer-Less LED Driver With an Enhanced Power Factor for Omnidirectional Multichannel Smart Bulb Applications,” IEEE Transactions on Power Electronics, Vol.31, Issue.8, pp.5851-5862, Aug. 2016.
  • Jaewoo Lee, J H Jeon, C H Je, Y-G Kim, S Q Lee, W S Yang, J S Lee, and S-G Lee, ‘A concave-patterned TiN/PECVD-Si3N4 /TiN diaphragm MEMS acoustic sensor based on a polyimide sacrificial layer’ Journal of Micromechanics and Microengineering, vol. 25,  Nov. 2015
  • Baek-Min Lim, Young-Hun Ko, Yeong-Shin Jang, Ok-Hwan Kwon, Sok-Kyun Han, and Sang-Gug Lee, “A 200V 98.16%-Efficiency Buck LED Driver Using Integrated Current Control to Improve Current Accuracy for Large Scale Single-String LED Backlighting Applications,” IEEE Transactions on Power Electronics, vol.31, issue 9, pp.6416-6427, Sep. 2016
  • Suna Kim, Dae-Woong Park, Kyoung-Young Choi, and Sang-Gug Lee, “MOSFET Characteristics for Terahertz Detector Application From On-Wafer Measurement,” IEEE Transactions on Terahertz Science and Technology, Vol.5, Issue.6, pp.1068-1077, Nov. 2015.
  • You-Sun Won, Chung-Hwan Kim, and Sang-Gug Lee, “Range Resolution Improvement of a 24 GHz ISM Band Pulse Radar—A Feasibility Study,” IEEE Sensors Journal, Vol.15, No.12, pp.7142–7149, Dec. 2015.
  • You-Sun Won, Chung-Hwan Kim, and Sang-Gug Lee, “A 24 GHz Highly Linear Up-conversion Mixer in CMOS 0.13um Technology,” IEEE Microwave and Wireless Components Letters, Vol.25, Issue.6, pp.400-402, June. 2015.
  • In-Young Lee, Seungjin Kim, Sang-Sung Lee, Jeongki Choi, Jinho Ko, and Sang-Gug Lee, “Spur Reduction Techniques With a Switched-Capacitor Feedback Differential PLL and a DLL-Based SSCG in UHF RFID Transmitter,” IEEE Transactions on Microwave Theory and Techniques, Vol.63, Issue.4, pp.1202-1210, April. 2015.
  • Chang-Jin Jeong, Yang Sun, Seok-Kyun Han, and Sang-Gug Lee, “A 2.2 mW, 40 dB Automatic Gain Controllable Low Noise Amplifier for FM Receiver,” IEEE Transactions on Circuits and Systems Part I, Vol.62, Issue.2, pp.600-606, Feb. 2015.
  • Xuan-Dien Do, Huy-Hieu Nguyen, Seok-Kyun Han, Dong Sam Ha, and Sang-Gug Lee, “A Self-Powered High-Efficiency Rectifier With Automatic Resetting of Transducer Capacitance in Piezoelectric Energy Harvesting Systems," IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol.23, Issue.3, pp.444-453, March. 2015.
  • Younghun Ko, Yeongshin Jang, Sok-Kyun Han, and Sang-Gug Lee, “Load-Balance-Independent High Efficiency Single-Inductor Multiple-Output (SIMO) DC-DC Converters,” Journal of Semiconductor Technology and Science, Vol.14, No.3, pp.300-312, June. 2014.
  • Jaelin Lee, Suna Kim, Jong-Phil Hong, and Sang-Gug Lee, “STI edge effect on the series resistance of CMOS Schottky barrier diodes” Microwave and Optical Technology Letters, Vol.56, Issue.4, pp.932-935, April. 2014.
  • Jong Yul Park, Sung-Ho Kim, Yang-Kyu Choi, Songcheol Hong, Sang-Gug Lee, and Kyung Rok Kim, “Possibility and design of resonant terahertz emitters based on nanoscale strained silicon plasma wave transistors with enhanced mobility,” Japanese Journal of Applied Physics, Vol.53, pp.73-81, May. 2014.
  • Suna Kim, Dae-Young Yoon, Hyung Chul Park, Giwan Yoon, and Sang-Gug Lee "A Fast and Precise Blind I/Q Mismatch Compensation for Image Rejection in Direct-Conversion Receiver" ETRI Journal, Volume 36, Number 1, February. 2014.
  • Jaewoo Lee, Changhan Je, Yi-Gyeong Kim, Sung Q Lee, Woo-Seok Yang, and Sang-Gug Lee, “Bottom-inlet-type micro-electro-mechanical system acoustic sensors based on two polyimide/amorphous-Si sacrificial layers,” IET Micro & Nano Letters, Vol.9, Issue.12, pp.845-849, Dec. 2014.
  • Jeongki Choi, In-Young Lee, Kanghyuk Lee, Seok-Oh Yun, Joomyoung Kim, Jinho Ko, Giwan Yoon, and Sang-Gug Lee, “A 5.8-GHz DSRC Transceiver With a 10-uA Interference-Aware Wake-Up Receiver for the Chinese ETCS,” IEEE Transactions on Microwave Theory and Techniques, Vol.62, Issue.12, pp.3146-3160, Dec. 2014.
  • Hong-Soo Cho, Chung-Hwan Kim, and Sang-Gug Lee, “A High-Sensitivity and Low-Walk Error LADAR Receiver for Military Application,” IEEE Transactions on Circuits and Systems I, Vol.61, Issue.10, pp.3007-3015, Oct. 2014.
  • Yeong-Shin Jang, Young-Hun Ko, Jung-Min Choi, Hyung-Seog Oh, and Sang-Gug Lee, “A 45-dB, 150-Hz, and 18-mW Touch Controller for On-Cell Capacitive TSP Systems,” IEEE Transactions on Circuits and Systems II, Vol.61, Issue.10, pp.748-752, Oct. 2014.
  • Yuwono S., Seok-Kyun Han, Giwan Yoon, Han-Jin Cho, Sang-Gug Lee, “Development of low-complexity all-digital frequency locked loop as 500 MHz reference clock generator for field-programmable gate array,” Circuits, Devices & Systems, IET, Vol.8, Issue.2, pp.73-81, March. 2014.
  • Jaelin Lee, Suna Kim, Jong-Phil Hong, and Sang-Gug Lee  "A New Resistance Model for a Schottky Barrier Diode in CMOS Including N-well Thickness Effect". JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, VOL.13, NO.4, AUGUST. 2013.
  • Seok Kyun-Han, Huy-Hieu Nguyen,and Sang-Gug Lee "High-Linearity Low-Noise Reconfiguration-Based Programmable Gain Amplifier". Journal of Semiconductor Technology And Science, Vol.13, No4 ,Aug. 2013.
  • Younghun Ko, Yeongshin Jang, Sok-kyun Han, and Sang-Gug Lee," A fast low dropout regulator with high slew rate and large unity gain bandwidth", Journal of Semiconductor Technology and Science. Aug. 2013.
  • D.B.Yen Nguyen, Ko Young-Hun, Seok-Ju Yun, Seok-Kyun Han, and Sang-Gug Lee,"Low phase Noise LC-VCO with active source degeneration", Journal of Semiconductor Technology and Science. June. 2013.
  • Hidayov O.A. ,Nam N.H. , Yoon G. , Han S.K. , Lee, S.G., “0.7-2.7 GHz wideband CMOS low-noise amplifier for LTE application,” Electronics Letters, Vol.49, Issue.23, pp.1433-1435, Nov. 2013.
  • Jeong-Yeol Bae, suna Kim, Hong-soo Cho, In-Young Lee, Dong Sam Ha, Sang-Gug Lee "A CMOS Wideband Highly Linear Low-Noise Amplifier for Digital TV Applications", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL 61, NO.10, Oct. 2013.
  • Joo-Myoung Kim, Seungjin Kim, In-Young Lee, Seok-Kyun Han, and Sang-Gug Lee, “A Low-Noise Four-Stage Voltage-Controlled Ring Oscillator in Deep-Submicrometer CMOS Technology,” IEEE Transactions on Circuits and Systems Part II, Vol.60, No.2, Feb. 2013.
  • D.B. Yen Nguyen, J.A. Cartwright, Young-Hun Ko, Sang-Gug Lee, D.S.Ha, "A high-precision spread spectrum clock generator based on a fractional-N phase locked loop", Analog Integrated Circuits & Signal processing, Jan. 2013.
  • Huy-Binh Le, Sang-Gug Lee, and Seung-Tak RYU "A Single-Supply 84dB DR Audio-Band ADC for Compact Digital Microphones", IEICE Transactions on Electronics, Vol,E95-C,No. 1, pp.-, Jan. 2012.
  • Dae-Young Yoon, Chang-Jin Jeong, Justin Cartwright, Ho-Yong Kang, Seok-Kyun Han, Nae-Soo Kim, Dong-Sam Ha, and Sang-Gug Lee "A New Approach to Low-power and Low-latency Wake-up Receiver System for Wireless Sensor Nodes", IEEE Jounal of Solid-State Circuits, vol. 47, no. 10, Oct. 2012.
  • Sang-Hyun Cho, Chang-Kyo Lee, Sang-Gug Lee, and Seung-Tak Ryu“A Two-channel Asynchronous SAR ADC with Metastable-Then-Set Algorithm,” IEEE Transactions on VLSI Systems, vol, 20, no4, Apr. 2012.
  • Yuna Shim, Sang-Gug Lee, "An Analog Controlled Variable Gain LNA with Tunable Frequency Bands," IEICE Trans. on Electronics, vol. E94-C, no.7, July. 2011.
  • Viet-Hoang Le, Hoai-Nam Nguyen, Sun-a Kim, Seok-Kyun Han, Sang-Gug Lee, "A Wideband Noise Cancelling Low Noise Amplifier for 3GPP LTE Standard" IEICE Transactions on Electronics, Vol.E94-C, No.6, June. 2011.
  • Yang Sun, Chang-Jin Jeong, In-Young Lee, and Sang-Gug Lee, "A Low Power and Low Noise On-chip Active RF Tracking Filter for Digital TV Tuner ICs," IEICE TRANSACTIONS on Electronics, Oct. 2011.
  • Viet-Hoang Le,Seok-Kyun Han, Sang-Gug Lee, "A Low Power Driver Amplifier for Unlicensed 2.4 Ghz Band", IEICE TRANSACTIONS on Electronics, Jan. 2011.
  • Huy-Binh Le, Xuan-Dien Do, Sang-Gug Lee, and Seung-Tak Ryu "A Long Reset-time Power-on Reset Circuit with Brown-out Detection Capability" IEEE Transactions on Circuits and Systems Part II, Vol.58, No.11, Nov. 2011.
  •  Dae-Young Yoon, Seok-Ju Yun, Justin Cartwright, Seok-Kyun Han, and Sang-Gug Lee "A High Gain Low Noise Mixer With Cross-Coupled Bleeding" , IEEE Microwave and Wireless Components Letters, Vol.21, No.10, Oct. 2011.
  • Y. Sun, Nguyen, H.-H, C.J. Jeong, and S.G. Lee, "A Integrated High Performance Active Rectifier for Piezoelectric Vibration Energy Harvesting Systems," IEEE Transactions on Power Electronics Vol.27, Issue.2, pp.623-627, 2012.
  • Viet-Hoang Le, Hoai-Nam Nguyen, In-Young Lee, Seok-Kyun Han, and Sang-Gug Lee "A Passive Mixer for a Wideband TV Tuner" IEEE Transactions on Cirucuits and Systems Part II, Vol. 58, No.7, July. 2011.
  • Jong-Phil Hong, and Sang Gug Lee "Gm-Boosted Differential Drain-to-Source Feedback Colpitts CMOS VCO" IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 7, July. 2011.
  • Y. Sun, C.J. Jeong, S.K. Han, and S.G. Lee, "CMOS On-Chip Active RF Tracking Filter for Digital TV Tuner ICs", Electronics Letters,Vol.47, No.6, March, 2011.
  • Yeong-Shin Jang, Hoai Nam Nguyen, Seung-Tak Ryu, Sang Gug Lee,"Yield-Ensuring DAC-Embedded Opamp Design Based on Accurate Behavioral Model Development", IEICE TRANSACTIONS on Electronics Vol.E93-C No.6 pp.935-937, June, 2010.
  • Huy-Hieu Nguyen,Jeong-Seon Lee, and Sang-Gug Lee, "Low Voltage Current-Reused Pseudo-Differential Programmable Gain Amplifier" IEICE Transaction, Vol.E93-C,No.1, pp.-, Jan. 2010.
  • Ha Le-Thai, Huy-Hieu Nguyen, Hoai-Nam Nguyen, Hong-su Cho, Jeong-Seon Lee and Sang Gug Lee"An IF Band-pass Filter Based on A Low Distortion Transconductor", IEEE Journal of Solid-State Circuits, Vol.45, No.11, pp. 2250-2261, Nov. 2010.
  • H.-B.Le, X.-D Do, S.-G. Lee,"Compact low-power high-slew-rate buffer for LCD driver applications" Electronics Letters, Vol.46, No.20, Sep, 2010.
  • Huy-Binh Le, Seung-Tak Ryu, Sang-Gug Lee, “A Fully On-chip Gm-Opamp-RC Based Preamplifier for Electret Condenser Microphones", IEICE Transaction, Electron,VOL E92-C. No.4, Apr. 2009.
  • Jong-Phil Hong and Sang-Gug Lee, "Low Phase Noise Gm-Boosted Differential Gate-to-Source Feedback Colpitts CMOS VCO" IEEE Journal of Solid-State Circuits, Vol.44, No.11, pp.3079-3091, Nov, 2009.
  • Viet Hoang Le, Seok-Kyun Han, Jeong-Seon Lee, and Sang-Gug Lee “Current-Reused Ultra Low Power, Low Noise LNA+Mixer" IEEE Microwave and Wireless Components Letters, Vol.19, No.11, 2009.
  • Huy-Hieu Nguyen, Hoai-Nam Nguyen, Jeong-Seon Lee, and Sang-Gug Lee "A Binary-Weighted Switching and Reconfiguration-Based Programmable Gain Amplifier", IEEE Transactions on Cirucuits and Systems Part II, Vo1.56, No.9, 2009.
  • Y.S.Jang, J.S.Lee, S.G.Lee and J.H.Ko;, “Complex DC-offset cancellation circuit" IEEE Electronics Letters, vol. 45, No.13, 18th June. 2009.
  • In-Young Lee, Seok-Ju Yun, Seung-Min Oh, and Sang-Gug Lee, “A Low-Parasitic and Common-Centroid Cross-Coupled CMOS Transistor Structure for High-Frequency VCO Design,” IEEE Electron Device Letters, Vol. 30, No. 5, pp. 532-534, May. 2009.
  • H.B.Le, J.W.Nam, S.T.Ryu, and S.G.Lee “Single-chip A/D converter for digital microphones with on-chip preamplifier and time-domain noise isolation" Electronics Letters, vol.45, No.3, pp.151-153, Jan. 2009.
  • Huy-Binh Le, and Sang-Gug Lee "A 1-V low power gain boosted self-cascoding current mirror operational transconductance amplifier", International Journal of Electronics, 1362-3060, Vol.96, No.10, pp.1005-1009, 2009.
  • Anh Tuan Phan, Ronan Farrell, and Sang-Gug Lee,"A 12-mW 264-MHz High linearity Sharp Roll-off CMOS Opamp-RC Low Pass Filter for MB-OFDM UWB System", Analog Integrated Circuits and Signal Processing, Springer, Dec.28th, 2009.
  • Quoc-Hoang Duong, Jeong-Seon Lee, Sang-Hyun Min, Joong-Jin Kim, and Sang-Gug Lee,"A 90 dB 1.32 mW 1.2 V 0.13 mm2 Two-Stage Variable Gain Amplifier in 0.18 pm CMOS",lElCE TRANS. ELECTRON, VOL.E91-C, NO.5 MAY. 2008.
  • Quoc-Hoang Duong, Chang-Wan Kim, and Sang-Gug Lee,"All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers",IEICE TRANS. ELECTRON. VOL.E91-C. NO.5 MAY. 2008.
  • Chang-Wan Kim, Quoc-Hoang Duong, Seung-Sik Lee, and Sang-Gug Lee," A 0.13um CMOS UWB RF transmitter with an on-Chip T/R Switch", ETRI Journal, Vol30, No.4, pp526-534, Aug. 2008.
  • Seok-Ju Yun, Dae-Young Yoon, and Sang-Gug Lee," A Complementary -Coulpled CMOS LC Quadrature oscillator ",IEICE Transactions on Electron., Vol.E91-C, No.11, pp1806-1810, Nov. 2008.
  • Trung-Kien Nguyen, Viet-Hoang Le, Quoc-Hoang Duong, Seok-kyun Han, Sang-Gug Lee,Nak-Seon Seong, Nae-Soo Kim, and Chel-Sig Pyo," A Low Power Direct Conversion Transceiver for 915MHz-Band IEEE 802.15.4b Standard Based on 0.18 um CMOS Technology",ETRI Journal,vol.30, no.1, Feb. 2008.
  • S.B Shin and S.G. Lee," An LC-VCO strongly suppresses the AM-FM conversion caused by varactor", IEICE Trans electron,Vol E91-C, No.9, pp.1516-1519, Sep. 2008.
  • Nguyen, H.-H.; Duong, Q.-H.; Le, H.-B.; Lee, J.-S.; Lee, S.-G.,"Low-power 42 dB-linear single-stage digitally-controlled variable gain amplifier",Electronics Letters, vol.44, Issue.13, Jun 19. 2008.
  • Seok-Ju Yun, Nguyen, D.B.Yen, Inyoung Lee, Jin-Taek Lee, and S.-G, Lee,"A Differentially-Tuned Voltage Controlled Oscillator Using Symmetric Transformer",IEEE Microwave and Wireless Comppnenets Letters. VOL.18. NO.7, July. 2008.
  • Tuan-Anh Phan, Jeongseon Lee, Vladimir Krizhanovskii, Quan Le, Seok-Kyun Han, and Sang-Gug Lee,"Energy-Efficient Low-Complexity CMOS pulse Generator for Multiband UWB impulse Radio", IEEE Transactions on Circuits and Systems Part I, Vol.55, No.11,pp.3552-3563, 2008.
  • H.-H.Nguyen, Q.-H.Duong, and S.-G.Lee "84 dB 5.2 mA digitally-controlled variable gain amplifier", Electronics Letters, Vol.44, No.5, Feb. 2008.
  • Tuan-Anh Phan, Ronan Farrell, and Sang-Gug Lee,"Sharp-Rejection Techniques in High Frequency Active-RC LPF for UWB Application", Transactions on Electronics and Signal Processing, ISAST, vol 3, no 2, pp.38-40, 2008.
  • Quoc Hoang Duong and S.-G. Lee, “86dB 1.4mW 1.8V 0.07mm2 Single-Stage Variable-Gain Amplifier in 0.18um CMOS", Electronics Letters, Vol.43, No.1, pp.19-21, Jan. 2007.
  • Quoc-Hoang Duong, Chang-Wan Kim, and Sang-Gug Lee, "All CMOS Low-Power Wide-Gain Range Variable Gain Amplifiers", IEICE Transactions on Electronics.
  • Jong-Phil Hong, Seok-Ju Yun, Sang-Gug Lee, “360uW/1mW Complementary Cross-Coupled Differential Colpitts LC-VCO/QVCO in 0.25um CMOS",IEICE Transactions on Electronics, vol.E90, No.12, Dec. 2007.
  • Viet-Hoang Le,Trung-Kien NGUYEN,Seok-Hyun Han and S.-G. Lee, “A 900 MHz RF Transmitter with Output LO Suppression", IEICE Transactoins on Electronics,Vol E90-C. No.1, Jan. 2007.
  • Yuna Shim, Chang-Wan Kim, and Sang-Gug Lee, "Simultaneous Noise and Input Matched.
  • Yuna Shim, Chang-Wan Kim, Jeongseon Lee, Sang-Gug Lee, "Design of Full Band UWB Common-Gate LNA",IEEE Microwave and Wireless Components Letters, vol.17, No.10, pp721-723 Oct. 2007.
  • Tuan-Anh Phan, Jeongseon Lee, Vladimir Krizhanovskii, Seok-Kyun Han, Sang-Gug Lee, “A 18-pJ/Pulse OOK CMOS Transmitter for Multiband UWB Impulse Radio",IEEE Microwave and Wireless Components Letters, Vol.17, No.9, pp.688-690, Sep. 2007.
  • Jong-Phil Hong, Seok-Ju Yun, Nam-Jin Oh,and Sang-Gug Lee , " A 2.2 mW Backgate Coupled LC Quadrature VCO with Current Reused Structure", IEEE Microwave and Wireless Components Letters vol. 17, No. 4, pp.298-300, Apr. 2007.
  • Chang-Wan Kim, Bong-Hyuk Park, Seung-Sik Lee ,Sang-Sung Choi, and Sang-Gug Lee , "A CMOS Frequency Synthesizer Block for MB-OFDM UWB Systems", ETRI Journal, vol. 29, No. 4, pp.437-444, Aug. 2007.
  • Ultra Wide-band LNA Design", Microwave and Optical Technology Letters, VOL. 17, NO. 10, pp2275-2279, Sept. 2007.
  • Nam-Jin Oh and Sang-Gug Lee, " A simple model parameter extraction methodology for on-chip spiral inductor ", ETRI Journal, Vol. 28, No. 1, pp. 115-118, Feb. 2006.
  • Quoc-Hoang Duong and S.-G. Lee, "Wide Dynamic Range Variable Gain Amplifier based on a New Approximated Exponential Equation", IEEE Electronics Letters, vol. 42, No. 23, pp.1319-1320, November. 2006.
  • Trung-Kien Nguyen, Vladmir Krizhanovskii, Jeongseon Lee, Seok-Kyun Han, Sang-gug Lee, Nae-Soo Kim, and Cheol-Sig Pyo "A Low-Power RF Direct-Conversion Receiver/Transmitter for 2.4-GHz-Band IEEE 802.15.4 Standard in 0.18- μm CMOS Technology ", IEEE Transactions on Microwave Theory and Techniques , Vol.54, No.12, pp4062-4071, December. 2006.
  • Seok-Ju Yun, Chong-Yul Cha,Hyoung-Chul Choi, Sang-Gug Lee, "RF CMOS LC-Oscillator With Source Damping Resistors", IEEE Microwave and Wireless Components Letters, VOL. 16, NO. 9, pp511-513, SEPTEMBER. 2006.
  • Quoc-Hoang Duong, Quan Le, Chang-Wan Kim, and Sang-Gug Lee "A 95-dB Linear Low-Power Variable Gain Amplifier", IEEE Transactions on Circuits and Systems, Vol.53, No.8,pp.1648-1657 August. 2006.
  • Chang-Wan Kim, Sang-Gug Lee, "A 5.25-GHz Image Rejection RF Front-End Receiver With Polyphase Filters", IEEE Microwave and Wireless Components Letters,VOL.16,No.5. pp.302-304, May. 2006.
  • Trung-Kien Nguyen, Nam-Jin Oh, Viet-Hoang Le, and Sang-Gug Lee, "A Low power CMOS Direct Conversion Receiver Front-end with 3-dB NF and 30-kHz Flicker Noise Corner for 915 MHz band IEEE 802.15.4 ZigBee Standard", IEEE Transactions on Microwave Theory and Techniques , Vol. 54, No. 2, pp. 735-741, Feb. 2006.
  • Nam-Jin Oh and S.G.Lee, "Current Reused LC VCOs", IEEE Microwave and Wireless Components Letters, Vol. 15, No. 11, pp. 736-738, Nov. 2005.
  • Nam-jin Oh and S.G.Lee, "11-GHz CMOS Differential VCO with Back-gate Transformer Feedback", IEEE Microwave and Wireless Components Letters, Vol. 15, No. 11, pp. 733-735, Nov. 2005.
  • Trung-Kien Nguyen, Seok-Kyun Han, and Sang-Gug Lee, "Ultra-Low-Power 2.4 GHz Image-Rejection Low-Noise Amplifier", Electronics Letters, Vol.41, No.15, pp842-843, Jul. 2005.
  • C.-W. Kim, M.-S. Jung, S.-G. Lee, "An Ultra-wideband CMOS Low Noise Amplifier", IEEE Electronics Letters, Vol. 41, No. 7, pp. 384-385, Mar. 2005.
  • Choong-Yul Cha and Sang Gug Lee, "A Complementary Colpitts Oscillator in CMOS Technology", IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 3, pp. 1-8, Mar. 2005.
  • Chang-Wan Kim, Min-suk Kang, Phan Tuan Anh, Hoon-Tae Kim, and Sang-Gug Lee," An Ultra-Wideband CMOS Low Noise Amplifier for 3 ~ 5 GHz UWB System", IEEE Journal of Solid-State Circuits, Vol. 40, No. 2, pp. 544-547, Feb. 2005.
  • Tuan-Anh Phan, Chang-Wan Kim, Yun-A Shim, and Sang-Gug Lee, " A High Performance CMOS Direct Down Conversion Mixer For UWB System ", IEICE Transactions on Electronics, Vol. E88-C, No .12 pp. 2316, Dec. 2005.
  • Nam-Jin Oh and Sang-Gug Lee, "Building a 2.4-GHz Radio transceiver using IEEE 802.15.4", IEEE Circuits and Devices Magazine, Vol. 21, No. 6, pp. 43-51, Nov./Dec. 2005.
  • Nam-Jin Oh, Jinho Ko, and Sang-Gug Lee, "A CMOS 868/915-MHz Direct Conversion ZigBee Single-chip Radio", IEEE Communications Magazine, Vol. 43, No. 12, pp. 100-109, Dec. 2005.
  • Trung-Kien Nguyen, Nam-Jin Oh, Choong-Yul Cha, Yong-Hun Oh, Gook-Ju Ihm, and Sang-Gug Lee, "Image-Rejection CMOS Low Noise Amplifier Design Optimization Techniques", IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 2, pp. 538-547, Feb. 2005.
  • Tuan-Anh Phan, Chang-Wan Kim, Yun-A Shim and Sang-Gug Lee, "Frequency-Controllable Image Rejection Down CMOS Mixer", International Conference on Microwave and Millimeter Wave Technology Proceedings, pp308-311, Dec. 2004.
  • Yong-Hun Oh, Sang-Gug Lee, Quan Le, Ho-Yong Kang and Tae-Whan Yoo, "A CMOS Burst-Mode Optical Transmitter for 1.25Gb/s Ethernet PON Applications", IEEE Transactions on Circuits and Systems II: Express briefs, Vol. 52, No. 11, pp. 283-286, Sep. 2004.
  • Yong-Hun Oh and Sang-Gug Lee, "An Inductance Enhancement Technique and Its Application to a Shunt-Peaked 2.5Gb/s Transimpedance Amplifier Design", IEEE Transactions on circuits and systems Part II, Vol. 51, No. 11, pp. 624-628, Nov. 2004.
  • H.-C Choi, S.- B. Shin and S.-G. Lee, "A Low-Phase Noise LC-QVCO in CMOS Technology", IEEE Microwave and Wireless Components Letters, Vol. 14, No 11, pp. 540-542, Nov. 2004.
  • Quan Le, Sang-Gug Lee, Yong-Hun Oh, Ho-Yong Kang and Tae-Hwan Yoo, "A burst-mode receiver for 1.25Gb/s Ethernet PON with AGC and internally created reset signal", IEEE Journal of Solid-State Circuits, Vol. 1, No. 12, pp. 474-540, Dec. 2004.
  • Q.-H. Duong, V. Krizhanovskii , H.-C. Choi , S.-J. Yun , M.-S. Yang, S.-G. Lee, "Low-voltage, high dB-linear, exponential V-V converter", IEEE Electronics Letters, Vol. 40, No 17, pp. 1032-1034, Aug. 2004.
  • Hye-Ryoung Kim, Choong-Yul Cha, Seung-Min Oh, Moon-Su Yang, and Sang-Gug Lee, "A Very Low-Power Quadrature VCO With Back-Gate Coupling", IEEE Journal of Solid-State Circuits, Vol. 39, No. 6 , pp. 952-955, Jun. 2004.
  • Trung-Kien Nguyen, Chung-Hwan Kim, Gook-Ju Ihm, Moon-Su Yang, and Sang-Gug Lee, " CMOS Low Noise Amplifier Design Optimization Techniques", IEEE Transaction on Microwave Theory and Technique, Vol. 52, No. 5, pp. 1433-1442, May. 2004.
  • J.-Y. Choi and S.-G. Lee, "A 2.45GHz CMOS up-conversion mixer design utilizing the current-reuse bleeding techinique", INT. J. Electronics, Vol. 91, No. 9, pp. 537-550, Sep. 2004.
  • Seung-Min Oh, Chang-Wan Kim, and Sang-Gug Lee, "A 74%, 1.56-2.71 GHz, Wide-tunable LC-tuned VCO in 0.35um CMOS technology", Microwave and Optical Technology Letters, Vol. 37, No. 2, pp. 98-100, Apr. 2003.
  • Jin-pil Kim, Yong-Hun Oh, Jin-Young Choi and Sang-Gug Lee,  "A 5.8GHz LNA With Image Rejection And Gain Control Based On 0.18m CMOS", Microwave and Optical Technology Letters, Vol. 36, No. 6, pp. 477-480, Sep. 2003.
  • C-Y Cha, J-K Choi, H-S Kwon and S.-G. Lee, “Radio Specifications of Double Conversion Tuner for Cable Modem,” IEEE Transactions on Consumer Electronics, Vol. 49, No. 4, pp. 1272-1278, Nov. 2003.
  • Moon-Su Yang, Seung Min Oh and S.-G. Lee, “Low Power Fully Differential Frequency Doubler,” IEE Electronics Letters, Vol. 39, No. 19, pp. 1388-1389, Sep. 2003.
  • So Bong Shin, Hyoung Chul Choi and Sang-Gug Lee,  "Source-Injection Parallel Coupled LC-QVCO", IEEE Electronics Letters, Vol. 39, No. 14, pp. 1059-1060, Jul. 2003.
  • Choong-Yul Cha, Jin-Pil Kim and Sang-Gug Lee,  "Small-Signal Substrate Resistance Effect in RF CMOS Cascode Amplifier", IEEE Microwave and Wireless Component Letters, Vol. 13, No. 7, pp. 253-255, Jul. 2003.
  • Choong-Yul Cha and Sang-Gug Lee,  "A 5.2GHz LNA in 0.35um CMOS Utilizing inter-Stage Series Resonance and Optimizing the Substrate Resistance", IEEE Journal of Solid-State Circuits, Vol. 38, No. 4, pp. 669-672, Apr. 2003.
  • Tao Yang and S.-G Lee,  "Design of Millimeter Wave Power Divider with Coupled Line", International Journal of Infrared and Millimeter Wave, Vol. 24, No. 8, pp1361-1365, Aug. 2003.
  • Tao Yang and S.-G. Lee, “Design of Millimeter Wave TFMS Bandpass Filter,” International Journal of Infrared and Millimeter Wave, Vol. 24, No. 11, pp.1925-1929, Nov. 2003.
  • Jin-pil Kim, Seong-su Park and Sang-Gug Lee,  "Linearity vs Q-factor of Loads for RF Amplifiers", Microwave and Optical Technology Letters, Vol. 37, No. 4, pp. 286-288, May. 2003.
  • Jin-Young Choi and Sang-Gug Lee, "A Low-Noise, High-Gain Single Ended Input Double Balanced Mixer", Analog Integrated Circuits and Signal Processing, Vol. 36, pp. 263-266, 6th, Mar. 2003.
  • Jin-Young Choi and S. -G. Lee,"A 2.45GHz CMOS Up-conversion Mixer and LO Buffer Design", Journal of Semiconductor Technology and Science, Vol. 2, No. 1, pp.30-40, Mar. 2002.
  • S.-G. Lee and Sin-Cheol Kim, "Spiral Inductor Design for Quality Factor", Journal of Semiconductor Technology and Science, Vol. 2, No. 1, pp. 56-58, March. 2002.
  • S.-G. Lee, -S.-B. Shin, and G.-J.Ihm “Measured Results on Symmetric Dual-Level Spiral Inductors for RF ICs,” IEICE Transactions on Electronics, Vol. E84-C, No . 6, pp. 845-848, Jun. 2001.
  • S.-G. Lee, J.-T. Lee, and J.-K. Choi, “High-Q Poly-to-Poly Capacitor for RF Integrated Circuits,” IEE Electronics Letters, Vol. 37, No.1, pp. 25-26, Jan. 2001.
  • S.-G. Lee, J.-K. Choi, “Current-Reused bleeding mixer,” IEE Electronics Letters, Vol. 36, No.8, pp. 696-697, Apr. 2000.
  • R. Lowther and S.-G. Lee, “On-Chip Interconnect Lines with Patterned Ground Shields,” IEEE Microwave and Guiided Wave Letters, Vol. 10, No. 2, pp. 49-51, Feb. 2000.
  • S.-G. Lee, S. -O. Lee, J.-S. Ko, and Y.-S. Cho, "A 1.8GHz Driver Amp Design and production DC Screening Techniques for RF Performances of Bipolar ICs", IEICE Technical Report, ED99-107, pp. 163, Jul. 1999.
  • D. T. Zweidinger, R. M. Fox, J. S. Brodsky, T.-W. Jung, S.-G. Lee, “Thermal Impedance Extraction for Bipolar Transistors,” IEEE Transactions on Electron Devices, Vol. 43, No. 2, pp. 342-346, Feb. 1996.
  • D. T. Zweidinger, S.-G. Lee, and R. M. Fox, “Compact Modeling of BJT Self-Heating in SPICE,”  IEEE Transaction on Computer-Aided Design for Integrated Circuits and Systems, Vol. 12, No. 9, pp. 1368- 1375, Sep. 1993
  • R. M. Fox, S.-G. Lee, and D. T. Zweidinger “The Effect of BJT Self-Heating on Circuit Behavior,” IEEE Journal of Solid-State Circuits, Vol. 28, No. 6, pp. 678-685, Jun. 1993.
  • S.-G. Lee and R. M. Fox“The Effects of Carrier-Velocity Saturation on High-Current BJT Output Resistance,” IEEE Transactions on Electron Devices, Vol. 39. No. 3, pp. 629-633, Mar. 1992.
  • R. M. Fox and S. -G. Lee “Extraction of Thermal Parameters for Bipolar Circuit Simulation,” IEEE Electron Device Letters, Vol. 27, No. 19, pp. 1719-1720, Sep. 1991.
  • R. M. Fox and S. -G. Lee “Scalable Small-Signal Model for BJT Self-Heating,” IEEE Electron Device Letters, Vol. 12, No. 12, pp. 649-651, Dec. 1991.
  • R. M. Fox and S. -G. Lee “Extension of the Open-Circuit Time-Constant Method to Allow for Transcapacitance,” IEEE Transactions on Circuits and Systems, Vol. 37, No. 9, pp. 1167-1171, Sep. 1990.