• Jeongwon Han, Won-Jong Choi, Young-Suk Son, Sang-Gug Lee. “ASIL-D and AEC-Q100 Grade 0 Compliant Automotive RC Oscillator with Farey Sequence-based Calibration” In 2024 IEEE Custom Integrated Circuits Conference (CICC), April. 2024.

• Byeong-Taek Moon, Hyun-Chul Park, Sang-Gug Lee. “A 281GHz, -1.5dBm Output-Power CMOS Signal Source Adopting a 46fsrms Jitter D-Band Cascaded Subharmonically Injection-Locked Sub-Sampling PLL with a 274MHz Reference” In 2024 IEEE International Solid-State Circuits Conference (ISSCC), February. 2024.

• Jung Min Jae, Lee Young-Nam, Song Juhyun, Lee Sang-Gug, Choi Kyung-Sik. "Experimental Analysis of Measurement Time Reduction in Electrochemical Impedance Spectroscopy using the Distribution of Relaxation Times" IEEE Energy Conversion Congress and Exposition (ECCE), 2023.

•      Young-Nam Lee, Min Jae Jung, Seong-Won Jo, Gul Rahim, Sang-Gug Lee, Kyung-Sik Choi. “Fast-settling Onboard Electrochemical Impedance Spectroscopy System Adopting Two-stage Hilbert Transform” IECON, Oct. 2023.

•      Young-Nam Lee, Kyung-Sik Choi, Seong-Won Jo, Gul Rahim, Kyeongha Kwon, Sang-Gug Lee. “Fast-settling Onboard Electrochemical Impedance Spectroscopy System Adopting Quasi-linear-phase Band-pass Filter” IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2023.

•      Min Jae Jung; Yi Xu; Hyun Jun Jang; Woo Sung Kim; Sang-Gug Lee. “Online Electrochemical Impedance Spectroscopy Estimation of Lithium-Ion Batteries using a Deep Learning Framework” IEEE Transportation Electrification Conference & Expo (ITEC), 2023.

•      Min Jae Jung, Akzhol Baktiyar, Young-Nam Lee, Sang-Gug Lee, Tae-Kyu Kang, Soo-Youn Park, Juhyun Song, and Kyung-Sik Choi. “Experimental Analysis for Fast Lithium Plating Detection in Voltage Relaxation Profile of Lithium-Ion Batteries” IECON, 2023.

•      Min Jae Jung, Sang-Gug Lee, Donkyu Baek. “Flight History-Aware Battery Temperature Estimator for Unmanned Aerial Vehicles Based on Deep Neural Network” IECON, 2023.

•      Mengchun Zhang, Sang-Gug Lee. “Investigation of SOC-Dependent Crystalline Phase Transitions in Electrodes and Phase-Dependent Aging Characteristics of a Lithium Battery Under Galvanostatic Cycling” IECON, 2023.

• Akzhol Baktiyar, Young-Nam Lee, Min Jae Jung, Sang-Gug Lee, Kyung-Sik Choi. “Reduction of Electrochemical Impedance Spectroscopy Measurement Time for Lithium-ion Batteries Based on Compressive Sensing” IECON, 2023.

• Jong-Kyoung Lee, Sunsik Woo, Wooyoung Jeong, Kwang-Seok Oh, Donghyeon Kim,Youngwoon Ko, Jin-Yong Jeon, Jooho Lee, Young-Suk Son, Sang-Gug Lee and Kyeongha Kwon. “ASIL-D compliant Battery Monitoring IC with High Measurement Accuracy and Robust Communication” In 2023 IEEE International Solid-State Circuits Conference (ISSCC), February. 2023.

• Byeong-Taek Moon, Sang-Gug Lee and Jaehyouk Choi. “A 264−287GHz, −2.5dBm Output Power, and −92dBc/Hz 1MHz-Phase Noise CMOS Signal Source Adopting a 75fsrms Jitter D-Band Cascaded Sub-Sampling PLL” In 2023 IEEE International Solid-State Circuits Conference (ISSCC), February. 2023.

• Jinglong Xu, Keun-Mok Kim, Hafiz Usman Mahmood, Jusung Kim, Sang-Gug Lee. “An n79 Sub-1-dB Noise Figure Highly Linear Variable- Gain LNA Employing Adaptive Imbalanced Bleeding for 5G NR” In 2022 IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2022.
  

• Byeonghun Yun, Dae-Woong Park, Chan-Gyu Choi, Ho-Jin Song, and Sang-Gug Lee. “280.2/309.2 GHz, 18.2/9.3 DB Gain, 1.48/1.4 DB Gain-per-MW, 3-Stage Amplifiers in 65nm CMOS Adopting Double-Embedded-G_max-Core.” In 2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) 

• Byeong-Taek Moon, Byeonghun Yun, and Sang-Gug Lee. “A 237–263 GHz CMOS Frequency Doubler with 0.9 DBm Output Power and 2.87 % Power Efficiency Based on Harmonic Matched Gmax-Core.” IEEE/MTT-S International Microwave Symposium - IMS 2022 

• Byeonghun Yun, Byeong-Taek Moon, and Sang-Gug Lee. “CMOS Based Sub-THz Wireless Transceivers: Issues and Solutions.” In 2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM), June. 2022. 

• Loan Pham-Nguyen, Nam Nguyen-Dac, Thinh Tran-Dinh, Hieu Minh Pham, Minkyu Je, Sang-Gug Lee, and Hanh-Phuc Le. “An 86.7%-Efficient Three-Level Boost Converter with Active Voltage Balancing for Thermoelectric Energy Harvesting.” In 2022 IEEE Custom Integrated Circuits Conference (CICC), April. 2022. 

• Keun-Mok Kim, Kyung-Sik Choi, Hyunki Jung, Byeonghun Yun, Subin Kim, Wonkab Oh, Eui-Soo Lee, Sujin Park, Eui-Rim Jeong, Jinho Ko, and Sang-Gug Lee “An LPWAN Radio with a Reconfigurable Data/Duty-Cycled-Wake-Up Receiver” In 2022 IEEE International Solid- State Circuits Conference (ISSCC), March. 2022.

• Kyung-Sik Choi, Jinho Ko, and Sang-Gug Lee. "A Single-Supply Single-Core Inverse Class-D Digital Power Amplifier with Enhanced Power Back-Off Efficiency Adopting Output Power Scaling Technique" 2021 Symposium on VLSI Circuits, 2021.

• Young-Seok Noh, Jeong-Il Seo, Won-Jong Choi, Ji-Hwan Kim, Hoang Van Phuoc, Hyun-Sik Kim, and Sang-Gug Lee. "A Reconfigurable DC-DC Converter for Maximum TEG Energy Harvesting in a Battery-Powered Wireless Sensor Node." IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2021.

• Kyung-Sik Choi, Keun-Mok Kim, Jinho Ko and Sang-Gug Lee, "A 5 dBm 30.6% Efficiency 915 MHz Transmitter with 210μW ULP PLL Employing Frequency Tripler and Digitally Controlled Duty/Phase Calibration Buffer," 2020 IEEE Asian Solid-State Circuits Conference (A-SSCC), Hiroshima, Japan, 2020

• Dzuhri Radityo Utomo, Dae-Woong Park, Byeonghun Yun, and Sang-Gug Lee. "A 293 440 GHz Push-Push Double Feedback Oscillators with 5.0-3.9 dBm Output Power and 2.9/0.6 % DC-to-RF Efficiency in 65 nm CMOS." 2020 Symposium on VLSI Circuits, 2020.

• Dae-Woong Park, Dzuhri Radityo Utomo, Jong-Phil Hong, Kristof Vaesen, Piet Wambacq, and Sang-Gug Lee. "A 247 and 272 GHz Two-Stage Regenerative Amplifiers in 65 nm CMOS with 18 and 15 dB Gain Based on Double-Gmax Gain Boosting Technique." 2020 Symposium on VLSI Circuits, 2020.

• Kyung-Sik Choi, Dzuhri Radityo Utomo, Keun-Mok Kim, Byeon-Hun Yun, Sang-Gug Lee, and In-Young Lee. "​A 490GHz 32mW Fully Integrated CMOS Receiver Adopting Dual-Locking FLL." IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2020.

• Keun-Mok Kim, Eui-Rim Jeong, Kyung-Sik Choi, Subin Kim, Byeonghun Yun, Hyunki Jung, Wonkab Oh, Jinho Ko, and Sang-Gug Lee. "A 915 MHz, 499 μW,–99 dBm, and 100 kbps BFSK Direct Conversion Receiver." ESSCIRC 2019-IEEE 45th European Solid State Circuits Conference (ESSCIRC). IEEE, 2019.

• Saebyeok Shin, Dzuhri Radityo Utomo, Hyunki Jung, Seok-Kyun Han, Sang-Gug Lee, and Jusung Kim. "A 22.8-to-32.4 GHz injection-locked frequency tripler with source degeneration." 2018 International SoC Design Conference (ISOCC). IEEE, 2018.

• Hyunki Jung, Dzuhri Radityo Utomo, Saebyeok Shin, Seok-Kyun Han, Sang-Gug Lee, and Jusung Kim. "Ka-band RF Front-End with 5dB NF and 16dB conversion gain in 45nm CMOS technology." 2018 International SoC Design Conference (ISOCC). IEEE, 2018.

• A. Dissanayake, H. G. Seok, O. Y. Jung, S. K. Han and S. G. Lee, "A 64 µW, 23 dB gain, 8 dB NF, 2.4 GHz RF front-end for ultra-low power Internet-of-Things transceivers," 2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Honolulu, HI, 2017, pp. 184-187.

• D. W. Park, D. R. Utomo, J. P. Hong and S. G. Lee, "A 230–260GHz wideband amplifier in 65nm CMOS based on dual-peak Gmax-core," 2017 Symposium on VLSI Circuits, Kyoto, 2017, pp. C300-C301.

• H. G. Seok, O. Y. Jung, A. Dissanayake and S. G. Lee, "A 2.4GHz, −102dBm-sensitivity, 25kb/s, 0.466mW interference resistant BFSK multi-channel sliding-IF ULP receiver," 2017 Symposium on VLSI Circuits, Kyoto, 2017, pp. C70-C71. 

• Seong Joong Kim, Chang Soon Park,  Youngkyu Kim,  Seok-ju Yun,  Young-Jun Hong,  and Sang-Gug Lee, “A 2.4GHz Ternary Sequence Spread Spectrum OOK Transceiver with Harmonic Spur Suppression and Dual-Mode Detection Architecture for ULP Wearable Devices,” VLSI Circuits (VLSI-Circuits), 2016 IEEE Symposium on, June 2016.

• Jaewoo Lee, W.S. Yang, S.E. Moon, and S.-G. Lee, “Fabrication and characterization of PECVD Si3N4 diaphragm-based capacitive-type acoustic sensor for IoT application,” Eurosensors 2016 Dig. Tech., Sep 2016.  

• Jaewoo Lee, J.H. Jeon, C.H. Je, S.Q. Lee, W.S. Yang, and S.-G. Lee, ‘Open-circuit sensitivity model based on empirical parameters for a capacitive-type MEMS acoustic sensor’ IOP Conf. Series: Materials Science and Engineering 108 (2016) 012044, Mar. 2016 

• Hye-In Lee, You-Sun Won, Chung-Hwan Kim, Sang-Gug Lee, "A 6-b 1-GS/s Adaptive Input Dynamic Range ADC Using Double Reference-Level for Radar System", 2015 International Conference on Electronics, Information and Communication

• Ngan K. Hoang, Sang-Gug Lee, "A method of regulating wireless power transfer based on the analysis of power communication", Emerging Technologies: Wireless Power (WoW), 2015 IEEE PELS Workshop on

• Jae-Seung Lee, Joo-Myoung Kim, Jae-Sup Lee, Seok-Kyun Han, Sang-Gug Lee, "A 227pJ/b -83dBm 2.4GHz Multi-Channel OOK Receiver Adopting Receiver-Based FLL", IEEE international Solid-State Circuits Conference (ISSCC 2015)

• Ngan K. Hoang, Young-Jin Woo, Sang-Gug Lee, "A digital fast soft-start control method in DC-DC converter for smart sensor applications", IEEE International Conference on Communications and Electronics

• Xuan-Dien Do, Seok-Kyun Han, Sang-Gug Lee, "Millimeter-wave CMOS Amplifier Design", 7th Global Symposium on Millimeter-Waves (GSMM) 2014, Seoul, Korea

• Ngan K. Hoang, Xuan-Dien Do, Young-Jin Woo, Sang-Gug Lee "An Area Saving Inductor Current Sensor with Load Transient Enhancement in DC-DC Converter", SoC Design Conference (ISOCC), 2014 International 

• You-Sun Won, Sigit Yuwono, Jae-Hoon Jung, Seok-Kyun Han, Sang-Gug Lee, "A Low-Power UWB Radar Transceiver with Fast Switching Wideband LNA for Short-Range Detection", 2014 Asia-Pacific Microwave Conference

• Ngan K. Hoang, Jeong-Seon Lee, Sang-Gug Lee, "Maximum Power Transfer Considering Limited Available Input Power in Ultrasonic Wireless Power Transfer for Implanted Medical Devices", IEEE International Conference on Consumer Electronics

• Ngan K. Hoang, Young-Jin Woo, Sang-Gug Lee, "A Zero Current Detector with Low Negative Inductor Current Using Forced Freewheel Switch Operation in Synchronous DC-DC Converter", IEEE International Conference on Communications and Electronics

• Xuan-Dien Do, Seok-Kyun Han, Sang-Gug Lee, "Optimization of Piezoelectric Energy Harvesting Systems by Using a MPPT Method", IEEE International Conference on Communications and Electronics

• Seung-Jin Kim, In-Young Lee, Sang-Sung Lee, Min-su Kil, Jeong-Ki Choi, Jin-Ho Ko, S, "A UHF-band RFID Transmitter with Spur Reduction Technique using a DLL-based Spread-Spectrum Clock Generator", Radio Frequency Integrated Circuits Symposium, 2014 IEEE

• In-Young Lee, Sang-Sung Lee, Donggu Im, Seungjin Kim, Jeongki Choi, Sang-Gug Lee, Jinho Ko, " A Fully Integrated TV Tuner Front-End with 3.1dB NF, >+31dBm OIP3, >83dB HRR3/5 and >68dB HRR7", IEEE international Solid-State Circuits Conference (ISSCC 2013), p. 70~72, San Francisco, US, Feb. 2014.

• Xuan-Dien Do, Huy-Hieu Nguyen, Seok-Kyun Han, and Sang-Gug Lee " A Rectifier for Piezoelectric Energy Harvesting System with Series Synchronized Switch Harvesting", Asian Solid-State Circuits Conference 2013(A-SSCC2013)

• Hoai-Nam Nguyen, Jang-Hong Choi, Byung-Hun Min, Mi-Jeong Park, Mun-Yang Park, Seok-Kyun Han, Sang-Gug Lee, Cheon-Soo Kim, " A low-power small-size transmitter with discrete-time baseband filter for LTE in 65 nm CMOS", Asian Solid-State Circuits Conference 2013(A-SSCC2013)

• Oh-Yong Jung, Seungin Kim, Sok-Kyun Han, and Sang-Gug Lee," A low power inaccuracy linearity compensated temperature sensor for attachable medical device", IEEE International Symposium on Circuits and Systems(ISCAS), May, 2013

• Joo-Myoung Kim, Seong Joong Kim, Seok-Kyun Han, and Sang-Gug Lee, “A 0.5V, 2.41GHz, 196.3dBc/Hz FoM Differential Colpitts VCO with an Output Voltage Swing Exceeding Supply and Ground Potential Requiring No Additional Inductor,” IEEE Radio Frequency Integrated Circuits Symposium(RFIC 2013), pp. 39-42, Seattle, US, June 2013

• Jong-Kyoung Lee, Young-Hun Ko, Sang-Gug Lee, “Calibration Technique for Sensitivity Variation in RVDT Type Accelerator Position Sensor”, Instrumentation and Measurement Technology Conference(I2MTC), 2013 IEEE International.

• Sang-Sung Lee, Jaeheon Lee, In-Young Lee, Sang-Gug Lee, Jinho Ko, "A New TX Leakage-Suppression Technique for an RFID Receiver Using a Dead-Zone Amplifier"IEEE international Solid-State Circuits Conference(ISSCC 2013),p. 18~20, San Francisco, US, Feb. 2013

• Jae-Seung Lee, Joo-Myoung Kim, Seok-Kyun Han, and Sang-Gug Lee, " ULP Receiver Design Methodologies for Wireless Sensor Network Applications", Asian Solid-State Circuits Conference 2013(A-SSCC2013)

• Y. H. Ko, Y. S. Jang, S. K. Han, S. G. Lee, "Non-load-balance-dependent high efficiency single-inductor multiple-output (SIMO) DC-DC converters," IEEE Custom Integrated Circuits Conference, San Jose, California, Sep. 2012.

• Seungjin Kim, In-Young Lee, Joo-Myoung Kim, and Sang-Gug Lee "A Quantization Noise Cancelling Fractional-N type Delta Sigma Frequency Synthesizer using SAR-based DAC Gain Calibration”, IEEE Custom Integrated Circuits Conference, San Jose, California, Sep. 2012

• Jeong-Yeol Bae, Suna Kim, In-Young Lee, Justin Cartwright and Sang-Gug Lee "A CMOS Highly Linear Low-Noise Amplifier for Digital TV Applications”, IEEE Radio Frequency Integrated Circuits Symposium, p.21~24, Montreal, Canada, 2012.

• Jeongki Choi, Kanghyuk Lee, Seok-Oh Yun, Sang-Gug Lee, Jinho Ko "An Interference-Aware 5.8GHz Wake-Up Radio for ETCS”,IEEE International Solid-State Circuits Conference(ISSCC 2012), p. 446, San Francisco, US, Feb. 2012.

• Xuan-Dien Do, Chang-Jin Jeong, Huy-Hieu Nguyen, Seok-Kyun Han, and Sang-Gug Lee, "High Efficiency Poezoelectric Energy Harvesting System”, Int. SoC Design Conf.(ISOCC), Nov. 2011.

• Jae-Seung Lee, Jeong-Yeol Bae, Sok-Kyun Han, Sang-Gug Lee, “A 12-bit Segmented DAC with a Serial Voltage Adder for AMLCD Column Drivers”, International Display Workshop(IDW), Nagoya, Japan, Dec. 2011.

• Hong-soo Cho, Yeong-shin Jang and Sang-gug Lee, “Low Power High-Speed Class AB Buffer Amplifier for LCD Applications”,International Display Workshop(IDW), Nagoya, Japan, Dec. 2011

• Yeong-shin Jang, Young-hun Ko, Jung-Min Choi, Ji-hun kim and Sang-gug Lee, “A Charge Transfer Scheme based on Differential Driving for Capacitive Touch Sensors”, International Display Workshop(IDW), Nagoya, Japan, Dec. 2011.

• Hoai-Nam Nguyen, Seung-Hwan Jung, Byung-Hun Min, Young-Jae Le, Sang-Gug Lee, Yun Seong Eo and Huyn-Kyu Yu, “A low power discrete-time receiver for triple-band FM/T-DMB/DAB system-on-chip”, IEEE European Solid-State Circuits Conference (ESSCIRC), pp. 311-314, Sep. 2011

• Yang Sun, Chang-jin Jeong, Seok-kyun Han, Sang-gug Lee “A High Speed Comparator Based Active Rectifier for Wireless Power Transfer Systems”, IEEE Intelligent Radio for Future Personal Terminals (IMWS-IRFPT), 2011 IEEE MTT-S International Microwave Workshop Series on, Aug. 2011

• Olim Hidayov, Il Hoon Jang, Seok Kyun Han, Sang-Gug Lee “A Wide-band CMOS Low Noise Amplifier for LTE Application”, IEEE Intelligent Radio for Future Personal Terminals (IMWS-IRFPT), 2011 IEEE MTT-S International Microwave Workshop Series on, Aug. 2011

• C. J. Jeong, W. Qu, Y. Sun, D. Y. Yoon, S. K. Han, and S. G. Lee, "A 1.5-V, 140-uA CMOS Ultra-Low Power Common-Gate LNA ", IEEE Radio Frequency Integrated Circuits Symposium (RFIC),USA, June, 2011

• Yuna Shim, Sigit Yuwono, Seung-Jin Kim, Joo-Myoung Kim, Seok-kyun Han, Dong S. Ha, Sang Gug Lee, "A 520pJ/pulse IR-UWB Radar for Short Range Object Detection", IEEE Radio Frequency Integrated Circuits Symposium (RFIC),USA, June, 2011

• Jae-Seung Lee, Chang-jin Jeong, Young-shin Jang, In-Young Lee, Sang-sung Lee, Seok-Kyun Han, Sang Gug Lee, "A High Linear Low Flicker Noise 25% Duty Cycle LO I/Q Mixer for a FM Radio Receiver", IEEE International Symposiun on Circuits and Systems (ISCAS), May 2011

• Yang Sun, In-young Lee, Chang-jin Jeong, Seok-Kyun Han, Sang Gug Lee, "An comparator based active rectifier for vibration energy harvesting systems", IEEE International Conference on Advanced Communication Technology (ICACT), Feb. 2011

• Xuan-Dien Do, Young Hun Ko, Huy-Hieu Nguyen, Huy-Binh Le, Sang Gug Lee, "An Efficient Parallel SSHI Rectifier for Piezoelectric Energy Scavenging Systems", IEEE International Conference on Advanced Communication Technology (ICACT), Feb. 2011

• Sigit Yuwono, Chang-jin Jeong, Seok-Kyun Han, Sang Gug Lee, "Current-Reused Single-Ended Curent-Output Multiplier as a Core Circuit in a UWB Pulse Detector", IEEE International Conference on Advanced Communication Technology (ICACT), Feb. 2011

• Hoai-Nam NGUYEN, Ki-uk Kwa, Jeong yeol Bae, Viet-Hoang LE, Sang Gug Lee, "Low power, high linearity wideband receiver front-end for LTE application ", IEEE International Conference on Advanced Communication Technology (ICACT), Feb. 2011

• Olim Hidayov, Ki-uk Kwa, Dhananjay Singh, Sang Gug Lee, "A Simulink-Model of Specialized Processor on the Piecewise-Polynomial Bases", IEEE International Conference on Advanced Communication Technology (ICACT), Feb. 2011

• Kiuk Gwak, Yeong-Shin Jang, and Sang-Gug Lee, " Read-out circuits employing varying reference voltage for capacitive touch screen", International Display Workshop, Fukuoka, Japan, Dec 2010

• Jeongyeol Bae, Yeongshin Jang, H.N. Nguyen, and Sang Gug Lee, "A Linear 10-bit DAC for LCD Drivers ICs using Charge Subtraction Interpolation”, International Display Workshop (IDW), Dec. 2010

• Hoai-Nam Nguyen, Yeong-Shin Jang, Jeong-Yeol Bae, Huy-Binh Le, Sang-Gug Lee , "A Differential Multi-bit/Conversion Cyclic DAC for TFT-LCD Column Drivers", The Society For Information Display (SID), page, 1458, June 2010

• Yeong-Shin Jang, Ki-Uk Gwak, Sang-Sung Lee, Sang Gug Lee, "A Charge-Share-Based Relative Read-Out Circuit for Capacitance Sensing" The Society For Information Display (SID), page, 1458, June 2010

• Huy-Binh Le, Sang Gug Lee, Seung-Tak Ryu, "A Regulator-Free 84 dB DR Audio-Band ADC for Compact Digital Microphones", IEEE Asian Solid-State Circuits Confenrece (ASSCC), November 2010

• Huy Hieu Nguyen, Hoai Nam Nguyen,Jeong-Seon Lee, Sang Gug Lee, "A High-Linearity Low-Noise Reconfiguration-Based Programmable Gain Amplifier", ESSCIRC, pp. 166-169, September 2010

• Yang Sun, Chang-jin Jeong, In-young Lee, Jeong-Seon Lee, Sang Gug Lee, "A 50-300-MHz Low Power and High Linear Active RF Tracking Filter for Digital TV Tuner ICs", IEEE Custom Integrated Circuits Conference (CICC), September 2010

• Ha Le-Thai, Huy Hieu Nguyen,Hoai Nam Nguyen,Jeong-Seon Lee, Sang Gug Lee, "A new low-distortion transconductor applied in a flate band-pass filter", IEEE Asian Solid-State Circuits Conference, 2009

• Jong-Phil Hong and Sang-Gug Lee, "Low Phase Noise Gm-Boosted Differential Colpitts VCO with Suppressed AM-to-FM Conversion", IEEE Radio Frequency Integrated Circuits Symposium, pp 255-258,USA, June, 2009

• Sigit Yuwono, Jeong-Yul Bae,Anh Tuan Phan, Seok-Kyun Han, and Sang-Gug Lee, "A Current-Reused Low-Power Four-Quadrant Multiplier with Single-Ended Current Output" IEEE International Symposium on Circuits and Systems (ISCAS' 09), Taipei, Taiwan, May 2009

• Anh Tuan Phan, Ronan Farrell, Min-suk Kang, Seok-Kyun Han, and Sang-Gug Lee, "Low-Power Sliding Correlation CMOS UWB Pulsed Radar Receiver for Motion Detection," IEEE International Symposium on Circuits and Systems (ISCAS' 09), Taipei, Taiwan, May 2009

• Yun-A Shim,Jeongseon Lee, Sek-kyun Han, Sang-Gug Lee," Low noise RF front-end receiver for 3~5GHz", International Conference on Advanced Communication Technology (ICACT), pp823-826, Feb.2008.

• Huy-Binh Le, Huy-Hieu Nguyen and Sang-Gug Lee,“ Double Speed Cyclic Digital-to Analog Converter ",HUT-ICCE 2008, Hoi an, Vietnam, June 4-6, 2008.

• Chang Shu, Min-Seok Kang, Sok-Kyun Han, Sang-Gug Lee",A single chip CMOS transmitter for UWB impulse radar applications,"Asia-Pacific Microwave Conf. (APMC)

• Xiaohua Yu, Jeong-Seon Lee, Sang-Gug Lee,"A 53uW super-regenerative receiver for 2.4GHz wake-up application",Asia-Pacific Microwave Conf. (APMC)

• Seok-Ju Yun, Sang-Gug Lee,"Transformer-coupled voltage controlled oscillator,"Asia-Pacific Microwave Conf. (APMC)

• Chang-Jin Jeong, Sang-Gug Lee,"A fully integrated RSSI with wide dynamic range, low power consumption in DVB-H",Asia-Pacific Microwave Conf. (APMC)

• Abdul Mujeeb, Sigit Yuwono, Jeong Seon Lee, Sang-Gug Lee,"Highly linear CMOS low noise amplifier with IIP3 boosting technique",Int. SoC Design Conf.(ISOCC)

• Yang Sun, Jeong-Seon Lee, Sang-Gug Lee,"On-chip active RF rracking filter with 60dB 3rd-order harmonic rejection for digital TV tuners", Int. SoC Design Conf.(ISOCC)

• Olim Hidayov, Hakimjon Zaynuddinov, Hyung Chul Park, Kondekar Pravin, Sang-Gug Lee, “Method of Computing Spectral Factors in Piecewise-Quadratic Bases and its Application in Problems of Digital Signal Processing,” IWSSIP 2008, pp.404-404, Bratislava, Slovak Republic, 25-28 June 2008.

• H.N. Nguyen, Y.S.Jang, Y.S.Son, S.T.ak Ryu, S.G. Lee" A Multi-bit/Cycle 12-bit Cyclic DAC for TFT-LCD Column Drivers,", International Display Workshop 2008, 03,Dec.,2008

• T.-K. Nguyen, V.-H. Le, Q.-H. Duong, S.-K. Han, S.-G. Lee, N.-S. Seong, and N.-S. Kim, "A Low Power CMOS Transceiver for 915 MHz-Band IEEE 802.15.4 Standard", IEEE Asian Solid-State Circuits Conference A-SSCC, Jeju, Korea, Nov 12-14, 2007.

• Tuan-Anh Phan, Vladimir Krizhanovskii, Sang-Gug Lee, “Low-Power CMOS Energy Detection Transceiver for UWB Impulse Radio System",Custom Intergrated Circuits Conference CICC, Sep.2007.

• Tuan-Anh Phan, Krizhanovskii, V., Seok-Kyun Han, Sang-Gug Lee, Hyun-seo Oh, Nae-Soo Kim, “4.7pJ/pulse 7th Derivative Gaussian Pulse Generator for Impulse Radio UWB",IEEE International Symposium on Circuits and Systems(ISCAS), pp.3043-3046, Jan. 2007.

• Quan Le, Sang-Gug Lee, Ho-yong Kang, Sang-Hoon Chai, "A CMOS Burst-Mode TIA with Step AGC and Selective Internal Created Reset for 1.25Gb/s EPON," 2007 IEEE international Solid-State Circuits Conference, Sanfrancisco, USA, Feb. 2007.

• Tuan-Anh Phan, Chang-Wan Kim, T.-J. Park, E.-J. Kim and Sang-Gug Lee, " Gain Mismatch-Balanced I/Q Down-Conversion Mixer for UWB," IEEE International Symposium on Circuits and Systems (ISCAS' 06), Kos, Greece, May 21-24, 2006.

• Trung-Kien Nguyen and Sang-Gug Lee, "Sub-mA, High-Gain CMOS Low-Noise Amplifier for 2.4 GHz Applications," IEEE International Symposium on Circuits and Systems (ISCAS' 06), Kos, Greece, May 21-24, 2006.

• Trung-Kien Nguyen and Sang-Gug Lee, " Low-Voltage, Low-Power CMOS Operation Transconductance Amplifier with Rail-to-Rail Differential Input Range," IEEE International Symposium on Circuits and Systems (ISCAS' 06), Kos, Greece, May 21-24, 2006.

• Le Viet Hoang, Nguyen Trung Kien, Sok-Kyun Han and Sang-Gug Lee, " Low Power High Linearity Transmitter Front-end for 900 MHz Zigbee Applications," IEEE International Symposium on Circuits and Systems (ISCAS' 06), Kos, Greece, May 21-24, 2006.

• Quoc-Hoang Duong, T.-J. Park, E.-J. Kim and Sang-Gug Lee, "An All CMOS 743MHz Variable Gain Amplifier for UWB Systems,"IEEE International Symposium on Circuits and Systems (ISCAS' 06), Kos, Greece, May 21-24, 2006.

• Trung-Kien Nguyen, Nam-Jin Oh, Seok-Kyun Han, and Sang-Gug Lee, " A Low Power CMOS RF Transmitter Front-end For 2.4 GHz ZigBee Applications," IEEE Radio and Wireless Symposium (RWS 2006) , pp. 43-46, San Diego, CA, Jan. 2006.

• Quoc-Hoang Duong, Chang-Wan Kim and Sang-Gug Lee, "An 83dB Low-Power High-Linearity Variable Gain Amplifier," IEEE Custom Integrated Circuit Conference, pp. 211-214, USA, Sep 2005.

• Vladimir Krizhanovskii, Trung-Kien Nguyen, and Sang-Gug Lee, "A Direct Conversion Front-End for 2.4 GHz Band of IEEE 802.15.4 Standard," IEEE Asian Solid-State Circuits Conference(A-SSCC05), pp. 449-452, Hsinchu, Taiwan, Nov. 2005.

• Trung-Kien Nguyen, Sang-Gug Lee, and Won-Seok Oh, "A 900 MHz Low Voltage Low Power Variable Gain CMOS Transmitter Front-end," IEEE Asian Solid-State Circuits Conference(A-SSCC05), pp. 357-360, Hsinchu, Taiwan, Nov. 2005.

• Trung-Kien Nguyen, Sang-Gug Lee, and Dong-Kyun Kang, "A 900 MHz CMOS RF Direct Conversion Receiver Front-end with 3-dB NF and 30-KHz 1/f Noise Corner," IEEE Asian Solid-State Circuits Conference(A-SSCC05), pp. 349-352, Hsinchu, Taiwan, Nov. 2005.

• Le Viet Hoang, Sok Kyun Han and Sang-Gug Lee, "Characterization of LO leakage behavior in Transconductance Mixers,” 2005 IEEE International Conference on Electron Devices and Solid-State Circuits, Hong Kong, Dec 19-21, 2005.

• V.H Le, T.K Nguyen, S.K Han and S.G Lee, "Low Power High Linearity Driver Amplifier for 1.9 GHz WCDMA Applications", Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

• Le Viet Hoang, Nguyen Trung Kien, Sok Kyun Han and Sang-Gug Lee, "Low Power High Linearity Driver Amplifier for 900MHz Zigbee Applications," Seventeenth Asia-Pacific Microwave Conference (APMC'2005), Suzhou, China 4-7, Dec. 2005.

• Yen-Nguyen D.B, Quan Le, Young-Hun Oh, and Sang-Gug Lee, "A High Linearity,Efficient Bandwidth, and High Stability transimpedance Amplifier," 48th IEEE internationl Midwest Symposium on circuits & systems, Ohio, Aug. 2005.

• Seok-Ju Yun, So-Bong Shin, Hyung-Chul Choi, and Sang-Gug Lee, "A 1 mW Current-Reused CMOS Differential LC-VCO with Low Phase Noise," IEEE International Solid-State Circuits Conference(ISSCC 2005), p. 29-6, San Francisco, US, Feb. 2005.

• Quoc-Hoang Duong and Sang-Gug Lee, "A low-voltage Low-power High dB-linear all CMOS Exponential V_I Conversion Circuits," IEEE Radio Frequency integrated Circuits Symposium, pp. 683-686, USA, Jun. 2005.

• Quoc-Hoang Duong and Sang-Gug, "A Low-Voltage Low-Power High dB-linear and all CMOS Exponential V-I Conversion Circuit ", Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE

• C.Y. Cha, H.C. Choi, and S.G.Lee, "RF CMOS Differential Oscillator with Source Damping Resistor,"IEEE Radio Frequency integrated Circuits Symposium, pp. 339-402, USA, Jun. 2005.

• Quoc-Hoang Duong, Le Quan, and Sang-Gug Lee, "An all CMOS 84-dB-Linear Low Power Variable Gain Amplifier," IEEE VLSI Symposium, pp. 114-117, Jun. 2005.

• Anh-Tuan Phan, Chang-Wan Kim, Moon-Suk Jung, Yun-A Shim, Jae-Yung Kim and Sang-Gug Lee, "A Novel 1.5V DC Offset Cancellation CMOS Down Conversion Mixer," IEEE International Symposium on Circuits and Systems (ISCAS2005), Kobe, Japan, p. 23-26, May 2005.

• Yong-Hun Oh and Sang-Gug Lee, "A CMOS Burst-mode Up-stream Transmitter For Fiber-optic Gigabit Ethernet Applications,"7th International Conference on Advanced Communication Technology (ICACT 2005), Phoenix Park, Korea, Feb. 2005.

• Yong-Hun Oh, Quan Le, Nguyen D. B. Yen, Sang-Gug Lee, Ho-Yong Kang, and Tae-Man Yoo, ""A CMOS Burst-mode Up-stream Transmitter For Fiber-optic Gigabit Ethernet Applications"", Advanced Communication Technology, 2005, ICACT 2005. The 7th International Conference on

• Chang-Wan Kim, Seung-Sik Lee, Bong-Hyuk Park, Yun-a Shim, and Sang-Gug Lee, "A CMOS Direct-Conversion I/Q Up-Mixer Block for Ultra-wideband System," 7th International Conference on Advanced Communication Technology (ICACT 2005), Phoenix Park, Korea, Feb. 2005.

• Mun-Sook Jung, Chang-Wan Kim, Phan Tuan Anh, Hoon-Tae Kim, and Sang-Gug Lee, "A 2.7 to 9.3 GHz CMOS wideband amplifier combined with high pass filter for UWB system," 7th International Conference on Advanced Communication Technology (ICACT2005), Phoenix Park, Korea, Feb. 2005.

• Anh-Tuan Phan, Chang-Wan Kim, Min-Suk Kang, Chun-Deok Su, Hoon-Tea Kim, and Sang-Gug Lee, "A High Performance CMOS Direct Down Conversion Mixer For UWB System", to be at ACM/IEEE, 2004 Great Lakes Symposium on VLSI (GLSVLSI), pp. 377-380, Boston, MA, USA, Apr. 2004.

• Yong-Hun Oh, Quan Le, Nguyen Duy Bien Yen, Sang- Gug Lee , Ho-Yong Kang and Tae-Whan Yoo, "A CMOS Burst-mode Optical Transceiver ic for 1.25 gb/s Ethernet Passive Optical Network (E-PON) Applications", Asia-Pacific Microwave Conference (APMC-2004) in New Delhi, India, Dec. 2004.

• Anh-Tuan Phan, Chang-Wan Kim, Min-Seok Kang, Yun-A Shim, Chun-Deok Su, and Sang-Gug Lee , "A Novel LC T-Structure Filter Integrated With CMOS Mixer For Image Rejection", IEEE International Symposium on Intelegient Signal Processing and Communications (ISPACS), Seoul, Korea, Nov. 2004.

• Gook-Ju Ihm, Nam-Jin Oh, Trung-Kien Nguyen, and Sang-Gug Lee, "A transmitter front-end design for 5GHz WLAN applications", The 4th International Conference on Microwave and Millimeter Wave Technology (ICMMT'04), pp. 582-585, Beijing, China, Aug. 2004.

• Anh- Tuan Phan, Chang- Wan Kim, Min-Seok Kang, Chun- Deok Su and Sang- Gug Lee, "Frequency-Controllable Image Rejection Down CMOS Mixer", IEEE 4th International Conference on Microwave and Millimeter Wave Technology ( ICMMT) , pp 308 - 311, 18-21 Aug. 2004.

• Anh- Tuan Phan, Chang- Wan Kim, Min-Seok Kang, Mun- Suk Chong, Chun- Deok Su and Sang- Gug Lee, "A Novel Image Rejection CMOS Mixer Using T-Structure Filter", The 5th IEEE International Caracas Conference on Devices, Circuits and Systems (ICCDCS 2004), pp. 37-40, Punta Cana, Dominican Republic, Nov. 2004.

• Vladimir Krizhanovskii, Lee Sang-Gug, "0.18 um CMOS Sub-Harmonic Mixer for 2.4 GHz IEEE802.15.4 Tranceiver", the 14th International Conference Microwave & Telecommunication Technology, Sevastopol, pp. 889-890, Crimea, Ukraine, Sep. 2004.

• Yong-Hun Oh, Quan Le, Sang-Gug Lee, Nguyen Duy Bien Yen, Ho-Yong Kang, and Tae-Whan Yoo, "Burst-Mode Transmitter for 1.25Gb/s Ethernet PON Applications", the 30th International European Solid-State Circuits Conference (ESSCIRC), pp. 283-286, Leuven, Belgium, Sep. 2004.

• Anh-Tuan Phan, Chang-Wan Kim, Choon-Yul Cha, Min-Seok Kang, Chun-Deok Su, Hoon-Tae Kim and Sang-Gug Lee, "A Low Noise Image Rejection Down CMOS Mixer", IEEE International Midwest Symposium on Circuits ans Systems (MWSCAS'04), pp III.327 -III.330, Hisoshima, Japan, Jul. 2004.

• Trung-Kien Nguyen, Nam-Jin Oh, Huyng-Chul Choi, Kuk-Ju Ihm, Sang-Gug Lee, "CMOS Low Noise Amplifier Design Optimization Technique", IEEE International Midwest Symposium on Circuits ans Systems (MWSCAS'04), pp. I.185-I.188 , Hiroshima, Japan, Jul. 2004.

• Tuan-Anh Phan, Chang-Wan Kim, Min-Seok Kang, Chun-Deok Su and Sang-Gug Lee, "Low Noise And High Gain CMOS Down Conversion Mixer", IEEE International Conference on Communications, Circuits and Systems (ISCAS 2004), pp. 1191-1193, China, Jun. 2004.

• Quoc-Hoang Duong and Sang-Gug Lee, "A 35 dB- Linear Exponential Function Generator for VGA and AGC Applications", IEEE Asia and South Pacific Design Automation Conference (ASP-DAC), pp. 304-306, Japan, Jan. 2004.

• Le Quan and S.-G. Lee, "Burst-mode Receiver for 1.25Gb/s Ethernet PON With AGC and Internally Created Reset Signal", IEEE International Solid-State Circuits Conference (ISSCC 2004), p. 26-3, San Francisco, US, Feb. 2004.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "CMOS Exponential Current-to-Voltage Circuit based on newly Proposed Approximation method", IEEE International Symposium on Circuits and Systems (ISCAS 2004), pp. II685-868, Canada, May, 2004.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "Ultra low-voltage low-power exponential voltage-mode circuit with tunable output range", IEEE International Symposium on Circuits and Systems (ISCAS 2004), pp. II729-732, Canada, May, 2004.

• Trung-Kien Nguyen, and Sang-Gug Lee, "A Power Constrained Simultaneous Noise and Input Matched Low Noise Amplifier Design Technique", IEEE International Symposium on Circuits and Systems (ISCAS 2004), pp. IV281-284, Vancouver, Canada, May, 2004.

• Choong Yul Cha and Sang-Gug Lee, "Overcome the phase noise optimization limit of differential LC oscillator with asymmetric capacitance tank structure", IEEE Radio Frequency integrated Circuits Symposium (RFIC 2004), Fort Worth, Texas, USA, Jun. 2004.

• Trung-Kien Nguyen, Nam-Jin Oh, Hyung-Chul Choi, Kuk-Ju Ihm, and Sang-Gug Lee, "5.2 GHz Image Rejection CMOS Low Noise Amplifier for Wireless LAN Application", IEEE Radio Frequency integrated Circuits Symposium (RFIC 2004), Fort Worth, Texas, USA, Jun. 2004.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "Pseudo-Exponential Current-to-Voltage Converter", IEEE International Conference on Advanced Communication Technology (ICACT 2004), pp. 532-535, Korea, Feb. 2004.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "All CMOS Current-Mode Exponential Function Generator", IEEE International Conference on Advanced Communication Technology (ICACT 2004), pp. 258-351, Korea, Feb. 2004.

• Trung-Kien Nguyen, Sang-Gug Lee, "A Low Voltage, Low Power CMOS Fifth Order Elliptic Low Pass Gm-C Filter for Direct Conversion Receiver", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 69-71, Seoul, Korea, Nov. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "A Low Voltage, Low Power, And High dB-Linear All CMOS Exponential Function Generator for AGC and VGA Applications", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 409-412, Seoul, Korea, Nov. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "A Low Voltage, Low Power, And High dB-Linear CMOS Exponential V-I Converter", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 413-416, Seoul, Korea, Nov. 2003.

• Nam-Jin Oh, Sang-Gug Lee, "A Low Noise Down Conversion Mixer With Suppression Of Image- Noise By Using An Image-Reject Notch Filter", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 890-893, Seoul, Korea, Nov. 2003.

• Chang-Wan Kim, Sang-Gug Lee, "5-GHz CMOS Up-Conversion Mixer", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 878-881, Seoul, Korea, Nov. 2003.

• Chang-Wan Kim, Sang-Gug Lee, "A 5.25 GHz Monolithic Image-Rejection Mixer", IEEE Asia-Pacific Microwave Conference (APMC-2003), pp. 781-784, Seoul, Korea, Nov. 2003.

• Moon-Su Yang and Sang-Gug Lee, "Linearity Improvement Technique for the Common- Source Transconductance Stage", IEEE Midwest International Conference on Circuit And System (MWSCAS), Cairo, Egypt, Dec. 2003.

• Trung-Kien Nguyen and Sang-Gug Lee, "A 5.2 GHz Image Rejection CMOS Low Noise Amplifier Using Notch Filter", IEEE Midwest International Conference on Circuit And System (MWSCAS), Cairo, Egypt, Dec. 2003.

• Moon-Su Yang, Seung- Min Oh and Sang-Gug Lee, "A 1.25V Direct Conversion CMOS Transmitter Front- End for 900 MHz ZigBee Applications", IEEE Midwest International Conference on Circuit And System (MWSCAS), Cairo, Egypt, Dec. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "All CMOS Exponential Function Generator With Tunable Input Output Range", IEEE Midwest International Conference on Circuit And System (MWSCAS), Cairo, Egypt, Dec. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "dB- Linear V-I Converter With Tunable Input Output Range", IEEE Midwest International Conference on Circuit And System (MWSCAS), Cairo, Egypt, Dec. 2003.

• Moon-Su Yang, Hye-Ryoung Kim and Sang-Gug Lee, "A 900MHz Low Voltage Low Power Highly Linear Mixer for Direct Conversion Receivers", IEEE International Conference on Electronics, Circuits and Systems (IECES-2003), pp. 974-977, UAE, Dec. 2003.

• Quoc-Hoang Duong and Sang-Gug Lee, "dB- Linear V-I Converter Using Composite NMOS Transistor", IEEE International Conference on Microelectronics- ICM03, pp. 10-13, Cairo, Egypt, Dec. 2003.

• Trung-Kien Nguyen and Sang-Gug Lee, "Noise and Gain Optimization Technique for RF Integrated CMOS Low Noise Amplifier", IEEE International Conference on Electronic Devices and Solid-State Circuits, pp. 221-224, Hong Kong, Dec. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "Ultra Low-Voltage and Low- Power dB- Linear V-I Converter Using Composite NMOS Transistor", IEEE International Conference on Electronic Devices and Solid- State Circuits, pp. 101-104, Hong Kong, Dec. 2003.

• Hye-Ryoung Kim; Seung-Min Oh; Sung-Do Kim; Young-Sik Youn; Sang-Gug Lee, "Low power quadrature vco with the back gate coupling", IEEE ESSCIRC, pp. 700-701, Portugal, Sep. 2003.

• Choong- Yul Cha and Sang-Gug Lee, "A Complementary Colpitts Oscillator Based on 0.35 um CMOS Technology", IEEE ESSCIRC, pp. 691-694, Portugal, Sep. 2003.

• Quoc-Hoang Duong, Trung-Kien Nguyen and Sang-Gug Lee, "Low- Voltage, Low- Power, High dB-Linear CMOS Exponential Function Generator using Highly-Linear V-I Converters", IEEE International Symposium on Low Power Electronics and Designs, pp. 349-352, Aug. 2003.

• Ja-Won Sm, Sub Han, Sang-Gug Lee, Man-Seop Lee and Tae Whan Yoo, ""A 1.25 Gbls High Sensitive Peak Detector in Optical Burst-Mode Receiver Using a 0.18p.m CMOS Technology"", Communication Technology Proceedings, 2003. ICCT 2003. International Conference on

• Quan Le, Jong-Ryul Lee and Sang-Gug Lee, "Transimpedance Amplifier for 10 Gigabit Ethernet Local Area Network Physical Layer", Optical Internet and Photonic Switching Conference 2002, Cheju, Korea, Jul. 2002.

• C. Cha, S. Lee, "A 5.25GHz LNA in 0.35um CMOS Utilizing Inter-Stage Series Resonance and Optimizing the Substrate Resistance", European Solid-State Circuit Conference, Florence, Italy, Sep. 2002.

• Quan Le, Yong-Hun Oh and Sang-Gug Lee, "Integrated Differential Preamplifier for 155Mb/s ATM-PON System with Fast Response, High Sensitivity and Wide Dynamic Range", Asia-Pacific Microwave Conference (APMC2002), Kyoto, Japan, Nov. 2002.

• C.- W Kim, S. - M Oh, B. - H Park, S. -G Lee, "2 GHz Direct-convergence CMOS Up-Mixer", Asia-Pacific Microwave Conference (APMC2002), Kyoto, Japan, Nov. 2002.

• Trung-Kien Nguyen, Sang-Gug Lee,"A 5.2 GHz, 1.7 dB NF Low Noise Amplifier for Wireless Applications Based on 0.18 um CMOS Technology", The 3rd International Conference on Microwave and Millimeter Wave Technology (ICMMT), pp. 251-254, Beijing, China, Aug. 2002.

• Hye-Ryoung Kim, Sang-Gug Lee, "A 5-GHz LNA for wireless LAN Application based on 0.5um SiGe BiCMOS", The 3rd International Conference on Microwave and Millimeter Wave Technology (ICMMT) 2002, pp. 50-53, Beijing, China, Aug. 2002.

• Jin-pil Kim, Sang-Gug Lee, Yong-Hun Oh, Seong-su Park, "A 2.4 GHz Driver Amplifier for Bluetooth Application", IEEE ICCS-2002, pp. 1185-1188, Singapore, Nov. 2002.

• Vladimir Krizhanovskii, Nguyen Trung Kien, Sang-Gug Lee, "0.18 mm CMOS LNA and mixer for wireless LAN applications", The 12th International Conference Microwave and Telecommunication Technology, pp. 137-138, Sevastopol, Ukraine, Sep. 2002.

• Jin-Taek Lee and Sang-Gug Lee, "CMOS based 2.4GHz Power Amplifier Design for Bluetooth Applications", ICACT 2001,at Muju, Korea, Feb. 2001.

• J. Y. Choi, S.-G. Lee, et al., "CMOS Up-Conversion Mixer Design Utilizing the Current-Reuse Bleeding Technique", The 9th International Symposium on Integrated Circuits, Devices & systems, Marina Mandarin, Singapore, Sep. 2001.

• S. B. Shin and S.-G Lee, "Dynamically controlled Power Amplifier has Improved Overall Efficiency", The 9th International Stymposium on Integrated Circuits, Devices & System, Marina Mandarin, Singapore, Sep. 2001.

• Yong-Hun Oh and Sang-gug Lee, "A 2.5Gb/s CMOS Transimpedance Amplifier Using Novel Active Inductor Load", 2001 Europian Solid-State Circuits Conference, Villach, Austria, Sep. 2001.

• Choong-Yul Cha and Sang-Gug Lee, "A Low Power, High Gain LNA Topology using Inter-Stage Series Resonance", CDMA International Conference 2001, pp. 99, Seoul, Korea, Nov. 2001

• Sang-Gug Lee, Nam-Soo Kim, Seung-Min Oh, Jeong-Ki Choi, and Sin-Churl Kim, "A Dual-Band Receiver Architecture for PCS and IMT-2000", AP-ASIC 2000, pp. 235-238, Jeju, Korea, Aug. 2000.

• Dae-Yeon Kim, Sang-Gug Lee, and Jin-Hyo Lee, "Up-Conversion Mixer for PCS Applications Using Si BJT", International Conference on Microwave and Millimeter Wave Technology, Beijing, China, Sep. 2000.

• Choong-Yul Cha and Sang-Gug Lee, "A Low Power, High Gain LNA Topology", International Conference on Microwave and Millimeter Wave Technology, pp. 420-423, Beijing, China, Sep. 2000.

• Jin-Taek Lee, Jeong-Ki Choi, and Sang-Gug Lee, "High-Q Poly-to-Poly Capacitor Design for RF Applications", International Conference on Microwave and Millimeter Wave Technology, pp. 196-199, Beijing, China, Sep. 2000.

• Nam-Soo Kim, Jeong-Ki Choi, Sang-Gug Lee, Chan-Gu Lee, and Hae-Won Jung, "An Image Rejection Down Conversion Mixer Architecture", TENCON2000, pp. I.287-289, Kuala Lumpur Malaysia, Sep. 2000

• Sobong Shin and Sang-Gug Lee, "An Adaptive Bias Circuit for High Efficiency Power Amp", TENCON2000, pp. II.30-32, Kuala Lumpur Malaysia, Sep. 2000

• S.-G. Lee, S.-O. Lee, and J.-S. Ko, "Production DC Screening Techniques for RF Performances of Bipolar ICs: poster paper", 25th European Solid-State Circuits Conference, Duisburg, Germany, Sep. 1999

• Sang-Gug Lee, Gook-Ju Ihm, and Won-Chul Song, "Design and Analysis of Symmetric Dual-Layer Spiral Inductors for RF Integrated Circuits", IEEE Asia-Pacific Conference on ASICs, Seoul, Korea, pp. 5-8, Aug. 1999

• Sang-Gug Lee, Hyuk-Yong Gwak, and Rex Lowther, "Characteristics of Interconnect Lines with Patterned Ground Shields and its Implication for Microwave ICs: poster paper", 1999 6th International Conference on VLSI and CAD, pp. 444-447, Seoul, Korea, Oct. 1999

• Sang-Gug Lee, "Area Efficient and Symmetric Design of Monolithic Transformers for Silicon RF ICs", 1999 IEEE Region 10 Conference, pp. 880-882, Cheju, Korea, Sep. 1999

• S.-G. Lee and R. D. Schultz, "Production DC Screening for RF Performance of a 900HMz Monolithic Low Noise Amplifier", IEEE Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 69- 72,Orlando , Florida, May 1995

• S.-G. Lee, R. D. Schultz, T. D. Brogan, and C. Stuebing, "900MHz Monolithic Low Noise Amplifier and Mixer", RF expo EAST 1994, pp. 164-167, Orlando Florida, May 1994.

• P. Spletter, P. Mehrotra, and S.-G. Lee, "A Comparison of High Frequency Electrical Performance of Bipolar Junction Transistors Packaged by Three Different Chip Interconnect Approaches", Proceedings of the 1994 International Electronics Packaging Conference, Atlanta, Georgia, pp. 826- 834, Sep. 1994

• S.-G. Lee, "A Review of Self-Heating Effects on Bipolar Circuits", Proceedings of IEEE Southcon/94, pp.138-142, Orlando, Florida, Mar. 1994.

• D. T. Zweidinger, S.-G. Lee, and R. M. Fox, "Compact modeling of BJT self-heating in circuit simulation", Proceedings of the NUPAD IV, pp. 138-142, Seattle, Jun. 1992.

• R. M. Fox and S.-G. Lee, "Predictive Modeling of Thermal Effects in BJTs", Proc. IEEE Bipolar Circuits and Technology Meeting, pp. 89-92, Sep. 1991.

• R. M. Fox and S.-G. Lee, "Low Frequency Noise in SIMOX MOSFETs", IEEE SOS/SOI Technology Workshop, St. Simon's Island, GA.,p.36, 1988.