A 52mW 0.56mm2 1.2V 12b 120MS/s SHA-Free dual-channel Nyquist ADC based on mid-code calibration. - Hee-Cheol Choi; Young-Ju Kim; Se-Won Lee; Jae-Yeol Han; Oh-Bong Kwon; Younglok Kim; Seung-Hoon Lee 006 (ISCAS, 2008)

A - 137 dBm/Hz Noise, 82% Efficiency AC-Coupled Hybrid Supply Modulator With Integrated Buck-Boost Converter. - Ji-Seon Paek; Seung-Chul Lee; Yong-Sik Youn; Dong-Su Kim; Jeong-Hyun Choi; Jun-Hee Jung; Young-Hwan Choo; Sung-Jun Lee; Jae-Yeol Han; Thomas Byunghak Cho (IEEE J. Solid State Circuits, 2016)

A 2TX supply modulator for envelope-tracking power amplifier supporting intra- and inter-band uplink carrier aggregation and power class-2 high-power user equipment. - Takahiro Nomiyama; Yong-Sik Youn; Young-Hwan Choo; Dong-Su Kim; Jae-Yeol Han; Jun-Hee Jung; Jongbeom Baek; Sung-Jun Lee; Euiyoung Park; Jeong-Hyun Choi; Ji-Seon Paek; Jongwoo Lee; et al. (ISSCC, 2018)

An 88%-Efficiency Supply Modulator Achieving 1.08μs/V Fast Transition and 100MHz Envelope-Tracking Bandwidth for 5G New Radio RF Power Amplifier. - Ji-Seon Paek; Dong-Su Kim; Jun-Suk Bang; Jongbeom Baek; Jeong-Hyun Choi; Takahiro Nomiyama; Jae-Yeol Han; Young-Hwan Choo; Yong-Sik Youn; Euiyoung Park; Sung-Jun Lee; Ik-Hwan Kim; et al. (ISSCC, 2019)

A 90ns/V Fast-Transition Symbol-Power-Tracking Buck Converter for 5G mm-Wave Phased-Array Transceiver. - Ji-Seon Paek; Takahiro Nomiyama; Jae-Yeol Han; Ik-Hwan Kim; Yumi Lee; Dongsu Kim; Euiyoung Park; Sung-Jun Lee; Jongwoo Lee; Thomas Byunghak Cho; Inyup Kang (ISSCC, 2019)

11.7 A Voltage-Tolerant Three-Level Buck-Boost DC-DC Converter with Continuous Transfer Current and Flying Capacitor Soft Charger Achieving 96.8% Power Efficiency and 0.87µs/V DVS Rate. - Jongbeom Baek; Takahiro Nomiyama; Seungchan Park; Young-Ho Jung; Dongsu Kim; Jae-Yeol Han; Jun-Suk Bang; Yumi Lee; Ik-Hwan Kim; Ji-Seon Paek; Jongwoo Lee; Thomas Byunghak Cho (ISSCC, 2020)

30.2 NB-IoT and GNSS All-in-One System-on-Chip Integrating RF Transceiver, 23dBm CMOS Power Amplifier, Power Management Unit and Clock Management System for Low-Cost Solution. - Jongsoo Lee; Jae-Yeol Han; Chilun Lo; Jongmi Lee; Wan Kim; Seungjin Kim; Byoungjoong Kang; Juyoung Han; Sangdon Jung; Takahiro Nomiyama; Jongwoo Lee; Thomas Byunghak Cho; et al. (ISSCC, 2020)

NB-IoT and GNSS All-In-One System-On-Chip Integrating RF Transceiver, 23-dBm CMOS Power Amplifier, Power Management Unit, and Clock Management System for Low Cost Solution. - Jongsoo Lee; Jae-Yeol Han; Chilun Lo; Jongmi Lee; Wan Kim; Seungjin Kim; Byoungjoong Kang; Juyoung Han; Sangdon Jung; Takahiro Nomiyama; Jongwoo Lee; Thomas Byunghak Cho; et al. (IEEE J. Solid State Circuits, 2020)

33.9 A Hybrid Switching Supply Modulator Achieving 130MHz Envelope-Tracking Bandwidth and 10W Output Power for 2G/3G/LTE/NR RF Power Amplifiers. - Dongsu Kim; Jun-Suk Bang; Jongbeom Baek; Seungchan Park; Young-Ho Jung; Jae-Yeol Han; Ik-Hwan Kim; Sung-Youb Jung; Takahiro Nomiyama; Ji-Seon Paek; Jongwoo Lee; Thomas Byunghak Cho (ISSCC, 2021)

Efficient RF-PA Two-Chip Supply Modulator Architecture for 4G LTE and 5G NR Dual-Connectivity RF Front-End. - Ji-Seon Paek; Dongsu Kim; Jae-Yeol Han; Young-Hwan Choo; Jongwoo Lee (VLSI Circuits, 2021)

2-Tx Digital Envelope-Tracking Supply Modulator Achieving 200MHz Channel Bandwidth and 93.6% Efficiency for 2G/3G/LTE/NR RF Power Amplifiers. - Jun-Suk Bang; Dong-Su Kim; Jeongkwang Lee; Sung-Youb Jung; Young-Hwan Choo; Seungchan Park; Young-Ho Jung; Jae-Young Ko; Takahiro Norniyama; Jongbeom Baek; Jae-Yeol Han; Sang-Han Lee; et al. (ISSCC, 2022)

A 52MHz -158.2dBc/Hz PN @ 100kHz Digitally Controlled Crystal Oscillator Utilizing a Capacitive-Load-Dependent Dynamic Feedback Resistor in 28nm CMOS. - Jaehong Jung; Seungjin Kim; Wonkang Kim; Jae-Yeol Han; Euiyoung Park; Seongwook Hwang; Seunghyun Oh; Sangwook Han; Kyungsoo Lee; Junho Huh; Jongwoo Lee (ISSCC, 2022)

Efficient RF-PA Two-Chip Supply Modulator Architecture for 4G LTE and 5G NR Dual-Connectivity RF Front End. - Ji-Seon Paek; Dong-Su Kim; Jae-Yeol Han; Young-Hwan Choo; Jun-Suk Bang; Seungchan Park; Jongbeom Baek; Takahiro Nomiyama; Ik-Hwan Kim; Jongwoo Lee (IEEE J. Solid State Circuits, 2022)

5G NR RF PA Supply Modulator Supporting 179ns 0.5-to-5.5V Symbol Power Tracking and Envelope Tracking. - Jun-Suk Bang; Dongsu Kim; Young-Hwan Choo; Ik-Hwan Kim; Seungchan Park; Jeongkwang Lee; Sang-Han Lee; Young-Ho Jung; Jae-Young Ko; Sung-Youb Jung; Jae-Yeol Han; Woosik Kim; et al. (VLSI Technology and Circuits, 2023)

31.3 A 950ns 0.5-to-5.5V 5G NR RF PA Supply Modulator with Floating Capacitor Control for Symbol Power Tracking. - Ik-Hwan Kim; Jeong-Il Seo; Young-Hwan Choo; Seungchan Park; Jae-Yeol Han; Woosik Kim; Sung-Youb Jung; Taehyuk Ko; Dongsu Kim; Jongwoo Lee; Sungung Kwak (ISSCC, 2024)