A 28.3 mW PA-Closed Loop for Linearity and Efficiency Improvement Integrated in a + 27.1 dBm WCDMA CMOS Power Amplifier
Kousai, Shouhei, Onizuka, K., Yamaguchi, T., Kuriyama, Y., Nagaoka, M.
Published in IEEE journal of solid-state circuits (01.12.2012)
Published in IEEE journal of solid-state circuits (01.12.2012)
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Journal Article
Conference Proceeding
Mixed-signal Doherty power amplifiers in CMOS
Hua Wang, Song Hu, Shouhei Kousai
Published in 2016 IEEE MTT-S International Microwave Symposium (IMS) (01.05.2016)
Published in 2016 IEEE MTT-S International Microwave Symposium (IMS) (01.05.2016)
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Conference Proceeding
A fully differential ultra-compact broadband transformer based quadrature generation scheme
Jong Seok Park, Kousai, Shouhei, Hua Wang
Published in Proceedings of the IEEE 2013 Custom Integrated Circuits Conference (01.09.2013)
Published in Proceedings of the IEEE 2013 Custom Integrated Circuits Conference (01.09.2013)
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Conference Proceeding
An octave-range watt-level fully integrated CMOS switching power mixer array for linearization and back-off efficiency improvement
Shouhei Kousai, Hajimiri, A.
Published in 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers (01.02.2009)
Published in 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers (01.02.2009)
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Conference Proceeding
Polar Antenna Impedance Detection and Tuning for Efficiency Improvement in a 3G/4G CMOS Power Amplifier
Kousai, Shouhei, Onizuka, Kohei, Wadatsumi, Junji, Yamaguchi, Takashi, Kuriyama, Yasuhiko, Nagaoka, Masami
Published in IEEE journal of solid-state circuits (01.12.2014)
Published in IEEE journal of solid-state circuits (01.12.2014)
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Journal Article
A 19.7 MHz, Fifth-Order Active-RC Chebyshev LPF for Draft IEEE802.11n With Automatic Quality-Factor Tuning Scheme
Kousai, S., Hamada, M., Ito, R., Itakura, T.
Published in IEEE journal of solid-state circuits (01.11.2007)
Published in IEEE journal of solid-state circuits (01.11.2007)
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Journal Article
A compact broadband mixed-signal power amplifier in bulk CMOS with hybrid Class-G and dynamic load trajectory manipulation operations
Song Hu, Kousai, Shouhei, Hua Wang
Published in 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) (01.05.2016)
Published in 2016 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) (01.05.2016)
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Conference Proceeding
Journal Article
A +27.3dBm transformer-based digital Doherty polar power amplifier fully integrated in bulk CMOS
Song Hu, Kousai, Shouhei, Jong Seok Park, Chlieh, Outmane Lemtiri, Hua Wang
Published in 2014 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2014)
Published in 2014 IEEE Radio Frequency Integrated Circuits Symposium (01.06.2014)
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Conference Proceeding
2.8 A broadband CMOS digital power amplifier with hybrid Class-G Doherty efficiency enhancement
Song Hu, Kousai, Shouhei, Hua Wang
Published in 2015 IEEE International Solid State Circuits Conference (ISSCC) (01.02.2015)
Published in 2015 IEEE International Solid State Circuits Conference (ISSCC) (01.02.2015)
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Conference Proceeding
Journal Article