李宇根 - 清华大学 - 集成电路学院

个人简介

Woogeun Rhee received the B.S. degree in electronics engineering from Seoul National University, Seoul, Korea, in 1991, the M.S. degree in electrical engineering from the University of California, Los Angeles, in 1993, and the Ph.D. degree in electrical and computer engineering from the University of Illinois, Urbana-Champaign, in 2001. From 1997 to 2001, he was with Conexant Systems, Newport Beach, CA, where he was a Principal Engineer and developed low-power, low-cost fractional-N synthesizers. From 2001 to 2006, he was with IBM Thomas J. Watson Research Center, Yorktown Heights, NY and worked on clocking area for high-speed I/O serial links, including low-jitter phase-locked loops, clock-and-data recovery circuits, and on-chip testability circuits. In August 2006, he joined the faculty as an Associate Professor at the School of Integrated Circuits (formerly, the Institute of Microelectronics and the Department of Microelectronics and Nanoelectronics), Tsinghua University, Beijing, China, and became a Professor in December 2011. He was a Visiting Professor at Seoul National University, Korea from August 2022 to February 2023. His current research interests include short-range low-power radios for mobile IoT, UWB transceivers for secure wireless connectivity, and clock/frequency generation circuits for wireline and wireless communications. He has published >150 IEEE papers and holds 24 U.S. patents. Dr. Rhee is a Region 10 Ex-Officio AdCom member (2020- ) of the IEEE Solid-State Circuits Society, an IEEE SSCS Chapters Steering Committee member (2021- ), an IEEE CASS BoG member as SSCS representative (2023- ), and an IEEE Distinguished Lecturer (2016-2017). He currently serves as an Associate Editor for IEEE OPEN JOURNAL OF THE SOLID-STATE CIRCUIT SOCIETY. He has been an Associate Editor for IEEE JOURNAL OF SOLID-STATE CIRCUITS (2012-2018), IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS PART-II: EXPRESS BRIEFS (2008-2009) and a Guest Editor for IEEE JOURNAL OF SOLID-STATE CIRCUITS Special Issue in November 2012, November 2013, and October 2022. He has served on the Technical Program Committees of several IEEE conferences, including ISSCC, CICC, and A-SSCC. He is the TPC Chair of A-SSCC 2021 and currently serves on the Steering Committee of A-SSCC. He is an IEEE Fellow.

研究领域

Energy-efficient short-rangetransceivers for mobile IoT Ultra-wideband (UWB) transceivers for secure wireless connectivityand fine ranging Low-noise clocking and frequencygeneration for wireline and wireless systems Mixed-signal circuits and systems

近期论文

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L. Feng, W. Rhee, and Z. Wang, “A Quantization noise reduction method for delta-sigma fractional-N PLLs using cascaded injection-locked oscillators,” IEEE Trans. Circuits and Systems II, vol. 69, pp. 2448-2452, May 2022. M. Ni, X. Wang, F. Li, W. Rhee, and Z. Wang, “A 13-Bit 2-GS/s time-interleaved ADC with improved correlation-based timing skew calibration strategy,” IEEE Trans. Circuits and Systems I, vol. 69. pp. 481-494, Feb., 2022 B. Wang, H. Song, W. Rhee, and Z. Wang, “Overview of ultra-wideband transceivers— system architectures and applications,” Tsinghua Science and Technology, vol. 27, no. 3, pp. 481-494, Nov. 2021. X. Xu, Z. Wang, W. Rhee, and Z. Wang, “A bias-current-free fractional-N hybrid PLL for low-voltage clock generation,” IEEE Trans. Circuits and Systems I, vol. 68, pp. 3611-3620, Sept. 2021. J. Zhao, Y. Zhang, K. Zeng, W. Rhee, and Z. Wang, “A 2.4-GHz crystal-less GFSK receiver using an auxiliary multiphase BBPLL for digital output demodulation with enhanced frequency scaling,” IEEE Trans. Circuits and Systems II, vol. 68, pp. 1143-1147, Apr. 2021. C. Ding, B. Wang, H. Song, W. Rhee, and Z. Wang, “A 3.5-GHz 0.24-nJ/b 100-Mb/s fully balanced FSK receiver with sideband energy detection,” IEEE Solid-State Circuits Letters, vol. 4, 2021. X. Zheng et al., “Frequency-domain modeling and analysis of injection-locked oscillators,” IEEE Journal of Solid-State Circuits. vol. 55, pp. 1651-1664, June 2020. H. Song, D. Liu, Y. Zhang, W. Rhee, and Z. Wang, “A 6.5–8.1-GHz communication/ranging VWB transceiver for secure wireless connectivity with enhanced bandwidth efficiency and ΔΣ energy detection,” IEEE Journal of Solid-State Circuits, vol. 55, pp. 219-232, Feb. 2020. Z. Ding, X. Xu, H. Song, W. Rhee, and Z. Wang, “Flash ADC based digital LDO with nonlinear decoder and exponential-ratio array,” Electronic Letters, vol. 55, no. 10, pp. 585- 587, May 2019. Y. Zhang, N. Meng, X. Huang, W. Rhee, and Z. Wang, “A 3.7-mW 2.4-GHz phase-tracking GFSK receiver with BBPLL-based demodulation,” IEEE Journal of Solid-State Circuits, vol. 54, pp. 336-345, Feb. 2019. Y. Zhang, H. Song, R. Zhou, W. Rhee, I. Shim, and Z. Wang, “A capacitor-less ripple-less hybrid LDO with exponential ratio array and 4000x load current range,” IEEE Trans. Circuits and Systems II, vol. 66, pp. 36-40, Jan. 2019. F. Lin, Z. Song, N. Qi, W. Rhee, and B. Chi, “A 77-GHz mixed-mode FMCW signal generator based on bang-bang phase detector,” IEEE Journal of Solid-State Circuits, vol. 53, pp. 2850-2863, Oct. 2018. Y. Guo et al., “A 120 pJ/bit ΔΣ-Based 2.4-GHz transmitter using FIR-embedded digital power amplifier,” IEEE Trans. Circuits and Systems II, vol. 65, pp. 1854-1858, Dec. 2018. X. Huang, D. Liu, W. Rhee, and Z. Wang, “A 1-GHz 1.6-mW auto-calibrated bit slicer for energy/envelope detection receivers,” IEEE Trans. Circuits and Systems II, vol. 65, pp. 587- 591, May 2018. F. Chen, W. Rhee, and Z. Wang “A 5 mW 750 kb/s noninvasive transceiver for around-thehead audio applications,” IEEE Trans. Circuits and Systems II, vol. 65, pp. 196-200, Feb. 2018. Z. Weng et al., “400 MHz/2.4 GHz combo WPAN transceiver IC for simultaneous dualband communication with one single antenna,” IEEE Trans. Circuits and Systems I, vol. 65, pp. 745-757, Feb. 2018. Y. Zhang, R. Zhou, W. Rhee, and Z. Wang, “A 1.9 mW 750 kb/s 2.4 GHz F-OOK transmitter with symmetric FM template and high-point modulation PLL,” IEEE Journal of Solid-State Circuits, vol. 52, pp. 2627-2735, Oct. 2017. X. Li, S. Lv, W. Rhee, W. Jia, and Z. Wang, “A 20 Mb/s GFSK modulator based on a 3.6 GHz hybrid PLL with 3-bit DCO nonlinearity calibration and independent delay mismatch control,” IEEE Trans. Microwave Theory and Techniques, vol. 65, pp. 2387-2398, July 2017. D. Liu, X. Ni, R. Zhou, W. Rhee, and Z. Wang, “A 0.42 mW 1 Mb/s 3-to-4 GHz transceiver in 0.18 m CMOS with flexible efficiency, bandwidth and distance control for IoT applications,” IEEE Journal of Solid-State Circuits, vol. 52, pp. 1479-1494, June 2017. X. Chen, Y. Shen, Z. Wang, W. Rhee, and Z. Wang, “A 17 mW 3-to-5 GHz duty-cycled vital sign detection radar transceiver with frequency hopping and time-domain oversampling,” IEEE Trans. Circuits and Systems I, vol. 64, pp. 969-980, Apr. 2017. H. Song, W. Rhee, I. Shim, and Z. Wang, “Digital LDO with 1-bit modulation for low voltage clock generation systems,” Electronic Letters, vol. 52, no. 25, pp. 2034-2036, Dec. 2016.