Noriyuki Yoshikawa

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IEEE Control Systems Magazine | 1994

Satoshi Makioka; Kazuki Tateoka; Masaaki Yuri; Noriyuki Yoshikawa; Kunihiko Kanazawa

A GaAs MCM power amplifier has been developed for 1.9-GHz digital cordless telephones. Power-added efficiency of 40.2% and P/sub 1dB/ of 22.2 dBm have been obtained at drain supply voltage of 3.6 V. Adoption of the MCM structure and on-chip ferroelectric capacitors has successfully reduced the GaAs total chip area to be 1.1 mm/sup 2/.<<ETX>>

international microwave symposium | 1994

Kazuki Tateoka; Akihisa Sugimura; Hidetoshi Furukawa; Masaaki Yuri; Noriyuki Yoshikawa; Kunihiko Kanazawa

Extremely small GaAs PA has been implemented using the AlN multilayer MCM for 0.9 GHz digital cellular phones. The present PA exhibited the efficiency of 49% with drain supply voltage as low as 3.6 V. The PA was designed to provide the matching circuits with the maximum gain at the input and the minimum intermodulation distortion at the output.<<ETX>>

IEEE Control Systems Magazine | 1996

Satoshi Makioka; S. Enomoto; H. Furukawa; Kazuki Tateoka; Noriyuki Yoshikawa; Kunihiko Kanazawa

An extremely miniaturized GaAs PA has been developed for the application in 1.5-GHz Japanese digital cellular phones. By using MuMIC (i.e. multilayer microwave integrated circuit) technology, the half sized (0.2 cc) PA with 1.1 W output power has successfully been implemented. The 48-% power-added efficiency has been obtained with drain supply voltage of 3.5-V.

Archive | 2002