High-speed CMOS I/O buffer circuits. - Manabu Ishibe; Shoji Otaka; Junichi Takeda; Shigeru Tanaka; Yoshiaki Toyoshima; Satoru Takatsuka; Shoichi Shimizu (IEEE J. Solid State Circuits, 1992)

A low local input 1.9 GHz Si-bipolar quadrature modulator with no adjustment. - Shoji Otaka; Takafumi Yamaji; Ryuichi Fujimoto; Chikau Takahashi; Hiroshi Tanimoto (IEEE J. Solid State Circuits, 1996)

A 1.9-GHz Si-bipolar variable attenuator for PHS transmitter. - Shoji Otaka; Hiroshi Tanimoto; Shuji Watanabe; Tadahiko Maeda (IEEE J. Solid State Circuits, 1997)

A low-power low-noise accurate linear-in-dB variable-gain amplifier with 500-MHz bandwidth. - Shoji Otaka; Gaku Takemura; Hiroshi Tanimoto (IEEE J. Solid State Circuits, 2000)

A 7-GHz 1.8-dB NF CMOS low-noise amplifier. - Ryuichi Fujimoto; Kenji Kojima; Shoji Otaka (IEEE J. Solid State Circuits, 2002)

A 1-V 2-GHz CMOS Up-Converter Using Self-Switching Mixers. - Toshiyuki Umeda; Shoji Otaka; Kenji Kojima; Tetsuro Itakura (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

A +10-dBm IIP3 SiGe mixer with IM3 cancellation technique. - Shoji Otaka; Mitsuyuki Ashida; Masato Ishii; Tetsuro Itakura (IEEE J. Solid State Circuits, 2004)

A Low LO Leakage and Low Power LO Buffer for Direct-Conversion Quadrature Demodulator. - Toshiya Mitomo; Osamu Watanabe 003; Shoji Otaka; Ryuichi Fujimoto; Shunji Kawaguchi (IEICE Trans. Electron., 2005)

A 950-MHz rectifier circuit for sensor network tags with 10-m distance. - Toshiyuki Umeda; Hiroshi Yoshida; Shuichi Sekine; Yumi Fujita; Takuji Suzuki; Shoji Otaka (IEEE J. Solid State Circuits, 2006)

ECO chip: Energy Consumption Zeroize Chip with a 953MHz High-Sensitivity Radio Wave Detector for Standby Mode Applications. - Toshiyuki Umeda; Shoji Otaka (CICC, 2007)

0.13 μm CMOS Cartesian loop transmitter IC with fast calibration and switching scheme from opened to closed loop. - Shoji Otaka; Masahiro Hosoya; Hiroaki Ishihara; Toru Hashimoto; Yuta Araki (ESSCIRC, 2008)

A 10MHz signal bandwidth Cartesian-loop transmitter capable of off-chip PA linearization. - Hiroaki Ishihara; Masahiro Hosoya; Shoji Otaka; Osamu Watanabe 003 (ISSCC, 2010)

A 10-MHz Signal Bandwidth Cartesian Loop Transmitter Capable of Off-Chip PA Linearization. - Hiroaki Ishihara; Masahiro Hosoya; Shoji Otaka; Osamu Watanabe 003 (IEEE J. Solid State Circuits, 2010)

A 1.9/2.4GHz dual band CMOS power amplifier with integrated AM-PM distortion canceller. - Kohei Onizuka; Hiroaki Ishihara; Masahiro Hosoya; Shigehito Saigusa; Osamu Watanabe 003; Shoji Otaka (CICC, 2011)

A 1.5GHz-modulation-range 10ms-modulation-period 180kHzrms-frequency-error 26MHz-reference mixed-mode FMCW synthesizer for mm-wave radar application. - Hiroki Sakurai; Yuka Kobayashi; Toshiya Mitomo; Osamu Watanabe 003; Shoji Otaka (ISSCC, 2011)

A +30.5 dBm CMOS Doherty power amplifier with reliability enhancement technique. - Kohei Onizuka; Shigehito Saigusa; Shoji Otaka (VLSIC, 2012)

A 1.9 GHz CMOS Power Amplifier With Embedded Linearizer to Compensate AM-PM Distortion. - Kohei Onizuka; Hiroaki Ishihara; Masahiro Hosoya; Shigehito Saigusa; Osamu Watanabe 003; Shoji Otaka (IEEE J. Solid State Circuits, 2012)

A 1.8GHz linear CMOS power amplifier with supply-path switching scheme for WCDMA/LTE applications. - Kohei Onizuka; Shigehito Saigusa; Shoji Otaka (ISSCC, 2013)

A 1024-QAM capable WLAN receiver with -56.3 dB image rejection ratio using self-calibration technique. - Shusuke Kawai; Toshiyuki Yamagishi; Yosuke Hagiwara; Shigehito Saigusa; Ichiro Seto; Shoji Otaka; Shuichi Ito (ISCAS, 2017)

A 1024-QAM Capable WLAN Receiver with -56.3dB Image Rejection Ratio Using Self-Calibration Technique. - Shusuke Kawai; Toshiyuki Yamagishi; Yosuke Hagiwara; Shigehito Saigusa; Ichiro Seto; Shoji Otaka; Shuichi Ito (IEICE Trans. Electron., 2018)

Sub-GHz Phase-Based Ranging System: Implementation and Evaluation. - Masayoshi Oshiro; Shoji Otaka; Takayuki Kato; Katsuya Nonin; Masaki Nishikawa; Yoshiharu Nito; Hideyuki Ishiwata; Hiroshi Yoshida (VTC Spring, 2020)

Sub-GHz Two-Way Ranging Based on Phase Detection for Remote Keyless Entry Systems. - Ichiro Seto; Shoji Otaka; Hiroshi Yoshida; Katsuya Nonin; Masaki Nishikawa; Takayuki Kato; Yoshiharu Nito; Hideyuki Ishiwata; Tomoaki Ohtsuki (IEEE Trans. Veh. Technol., 2022)