A 14-nm 0.14-psrms Fractional-N Digital PLL With a 0.2-ps Resolution ADC-Assisted Coarse/Fine-Conversion Chopping TDC and TDC Nonlinearity Calibration
Chih-Wei Yao, Ronghua Ni, Chung Lau, Wanghua Wu, Godbole, Kunal, Yongrong Zuo, Sangsoo Ko, Nam-Seog Kim, Sangwook Han, Ikkyun Jo, Joonhee Lee, Juyoung Han, Daehyeon Kwon, Chulho Kim, Shinwoong Kim, Sang Won Son, Cho, Thomas Byunghak
Published in IEEE journal of solid-state circuits (01.12.2017)
Published in IEEE journal of solid-state circuits (01.12.2017)
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Journal Article
K- and Q-bands CMOS frequency sources with X-band quadrature VCO
KO, Sangsoo, KIM, Jeong-Geun, SONG, Taeksang, YOON, Euisik, HONG, Songcheol
Published in IEEE transactions on microwave theory and techniques (01.09.2005)
Published in IEEE transactions on microwave theory and techniques (01.09.2005)
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Journal Article
Design and Analysis of an Ultra-Wideband Automatic Self-Calibrating Upconverter in 65-nm CMOS
KANG, Byoungjoong, YIM, Jounghyun, KIM, Taewan, KO, Sangsoo, KO, Won, SHIN, Heeseon, RYU, Inhyo, YANG, Sung-Gi, BAE, Jong-Dae, PARK, Hojin
Published in IEEE transactions on microwave theory and techniques (01.07.2012)
Published in IEEE transactions on microwave theory and techniques (01.07.2012)
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Journal Article
Design and Analysis of a Cascode Bipolar Low-Noise Amplifier With Capacitive Shunt Feedback Under Power-Constraint
KANG, Byoungjoong, YU, Jinhyuck, SHIN, Heeseon, KO, Sangsoo, KO, Won, YANG, Sung-Gi, CHOO, Wooseung, PARK, Byeong-Ha
Published in IEEE transactions on microwave theory and techniques (01.06.2011)
Published in IEEE transactions on microwave theory and techniques (01.06.2011)
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Journal Article
Balanced topology to cancel Tx leakage in CW radar
KIM, Jeong-Geun, KO, Sangsoo, JEON, Sanghoon, PARK, Jae-Woo, HONG, Songcheol
Published in IEEE microwave and wireless components letters (01.09.2004)
Published in IEEE microwave and wireless components letters (01.09.2004)
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Journal Article
Ku-band InGaP-GaAs HBT MMIC VCOs with balanced and differential topologies
Baek, D., Ko, S., Kim, J.-G., Kim, D.-W., Hong, S.
Published in IEEE transactions on microwave theory and techniques (01.04.2004)
Published in IEEE transactions on microwave theory and techniques (01.04.2004)
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Journal Article
Low-noise fractional-N PLL design with mixed-mode triple-input LC VCO in 65nm CMOS
Yuanfeng Sun, Xueyi Yu, Woogeun Rhee, Sangsoo Ko, Wooseung Choo, Byeong-Ha Park, Zhihua Wang
Published in 2010 IEEE Radio Frequency Integrated Circuits Symposium (01.05.2010)
Published in 2010 IEEE Radio Frequency Integrated Circuits Symposium (01.05.2010)
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Conference Proceeding
A WiMedia UWB transmitter up to 9GHz in 65nm CMOS and Wafer-Level Fabricated Package
Jounghyun Yim, Byoungjoong Kang, Taewan Kim, Won Ko, Heeseon Shin, Sangsoo Ko, Inhyo Ryu, Sung-Gi Yang, Jong-Dae Bae, Hojin Park
Published in 2011 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2011)
Published in 2011 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2011)
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Conference Proceeding
A 65nm CMOS low-noise three band group WiMedia UWB receiver
Won Ko, Heeseon Shin, Sangsoo Ko, Jounghyun Yim, Byoungjoong Kang, Taewan Kim, Inhyo Ryu, Sung-Gi Yang, Jong-Dae Bae, Hojin Park
Published in 2011 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2011)
Published in 2011 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2011)
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Conference Proceeding
A nonquasi-static table-based small-signal model of heterojunction bipolar transistor
Ko, Sangsoo, Koh, Kyungmin, Park, Hyun-Min, Hong, Songcheol
Published in IEEE transactions on electron devices (01.10.2002)
Published in IEEE transactions on electron devices (01.10.2002)
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Journal Article
Digital PLL design challenges for cellular RFICs
Sangsoo Ko, Chih-Wei Yao, Joonhee Lee, Sangwook Han, Daehyeon Kwon, Wing Fai Loke, Ronghua Ni, Cho, Thomas Byunghak
Published in 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) (01.08.2017)
Published in 2017 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) (01.08.2017)
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Conference Proceeding
Dual-Path LC VCO Design With Partitioned Coarse-Tuning Control in 65 nm CMOS
Sun, Yuanfeng, Yu, Xueyi, Rhee, Woogeun, Ko, Sangsoo, Choo, Wooseung, Park, Byeong-Ha, Wang, Zhihua
Published in IEEE microwave and wireless components letters (01.03.2010)
Published in IEEE microwave and wireless components letters (01.03.2010)
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Journal Article
An X-band CMOS quadrature balanced VCO
KO, Sangsoo, HUI DONG LEE, KANG, Dong-Woo, HONG, Songcheol
Published in 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) (2004)
Published in 2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) (2004)
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Conference Proceeding
A single-chip CDMA-2000 zero-IF transceiver for band-class 4 with GPS support
Sung-Gi Yang, Ji-Ho Ryu, Byoungjoong Kang, Heeseon Shin, Jinhyuck Yu, Sangsoo Ko, Won Ko, Dong-Jin Keum, Wooseung Choo, Byeong-Ha Park
Published in ESSCIRC 2007 - 33rd European Solid-State Circuits Conference (01.09.2007)
Published in ESSCIRC 2007 - 33rd European Solid-State Circuits Conference (01.09.2007)
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Conference Proceeding
A 14-nm 0.14-ps rms Fractional-N Digital PLL With a 0.2-ps Resolution ADC-Assisted Coarse/Fine-Conversion Chopping TDC and TDC Nonlinearity Calibration
Yao, Chih-Wei, Ni, Ronghua, Lau, Chung, Wu, Wanghua, Godbole, Kunal, Zuo, Yongrong, Ko, Sangsoo, Kim, Nam-Seog, Han, Sangwook, Jo, Ikkyun, Lee, Joonhee, Han, Juyoung, Kwon, Daehyeon, Kim, Chulho, Kim, Shinwoong, Son, Sang Won, Cho, Thomas Byunghak
Published in IEEE journal of solid-state circuits (01.12.2017)
Published in IEEE journal of solid-state circuits (01.12.2017)
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Journal Article
An Ultra-wideband transmitter with automatic self-calibration of sideband rejection up to 9 GHz in 65nm CMOS
Byoungjoong Kang, Jounghyun Yim, Taewan Kim, Heeseon Shin, Sangsoo Ko, Won Ko, Inhyo Ryu, Sung-Gi Yang, Wooseung Choo, Byeong-Ha Park
Published in 2010 International SoC Design Conference (01.11.2010)
Published in 2010 International SoC Design Conference (01.11.2010)
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Conference Proceeding
24.8 A 14nm fractional-N digital PLL with 0.14psrms jitter and −78dBc fractional spur for cellular RFICs
Chih-Wei Yao, Wing Fai Loke, Ronghua Ni, Yongping Han, Haoyang Li, Godbole, Kunal, Yongrong Zuo, Sangsoo Ko, Nam-Seog Kim, Sangwook Han, Ikkyun Jo, Joonhee Lee, Juyoung Han, Daehyeon Kwon, Chulho Kim, Shinwoong Kim, Sang Won Son, Cho, Thomas Byunghak
Published in 2017 IEEE International Solid-State Circuits Conference (ISSCC) (01.02.2017)
Published in 2017 IEEE International Solid-State Circuits Conference (ISSCC) (01.02.2017)
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Conference Proceeding
A CMOS VCO with Optimized Tune Branches for Zero-IF CDMA Cellular Application in a 0.5μm BiCMOS process
Jinhyuck Yu, Sung-Gi Yang, Sangsoo Ko, Woonyun Kim, Wooseung Choo, Byeong-Ha Park
Published in 2005 IEEE Asian Solid-State Circuits Conference (01.11.2005)
Published in 2005 IEEE Asian Solid-State Circuits Conference (01.11.2005)
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Conference Proceeding