Presentation 1998/1/21
Single Low Voltage supply Operation GaAs Power MESFET Amplifier with Low-Distortion Gain Variable Attenuator for 1.9-GHz Personal Handy Phone Systems
Hirotsugu Wakimoto, Masami Nagaoka, Toshiki Seshita, Katsue Kawakyu, Yoshiko Ikeda, Kazuya Nishihori, Yoshiaki Kitaura, Atsushi Kameyama, Naotaka Uchitomi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A GaAs power amplifier with a low-distortion, 10-dB gain attenuator has been developed for 1.9-GHz personal handy phone system (PHS). Single low 2.4-V supply operation was achieved by using power MESFETs with p-pocket layers. Furthermore, on account of an attenuator with cascaded shunt FET structure, very low 600-kHz adjacent channel leakage power (ACP) with sufficient, constant output power was attained regardless of any controlled gain. An output power of 21.1dBm, a low dissipated current of 157mA and a high power-added efficiency of 37.2% were obtained with ACP of -55dBc.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Gallium Arsenide / PHS / Power Amplifier / Low-Distortion / Variable Attenuator / P-pocket MESFET
Paper # ICD97-197
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Conference Date 1998/1/21(1days)
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Paper Information
Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Single Low Voltage supply Operation GaAs Power MESFET Amplifier with Low-Distortion Gain Variable Attenuator for 1.9-GHz Personal Handy Phone Systems
Sub Title (in English)
Keyword(1) Gallium Arsenide
Keyword(2) PHS
Keyword(3) Power Amplifier
Keyword(4) Low-Distortion
Keyword(5) Variable Attenuator
Keyword(6) P-pocket MESFET
1st Author's Name Hirotsugu Wakimoto
1st Author's Affiliation Toshiba R&D Center()
2nd Author's Name Masami Nagaoka
2nd Author's Affiliation Toshiba R&D Center
3rd Author's Name Toshiki Seshita
3rd Author's Affiliation Toshiba R&D Center
4th Author's Name Katsue Kawakyu
4th Author's Affiliation Toshiba R&D Center
5th Author's Name Yoshiko Ikeda
5th Author's Affiliation Toshiba R&D Center
6th Author's Name Kazuya Nishihori
6th Author's Affiliation Toshiba R&D Center
7th Author's Name Yoshiaki Kitaura
7th Author's Affiliation Toshiba R&D Center
8th Author's Name Atsushi Kameyama
8th Author's Affiliation Toshiba R&D Center
9th Author's Name Naotaka Uchitomi
9th Author's Affiliation Toshiba R&D Center
Date 1998/1/21
Paper # ICD97-197
Volume (vol) vol.97
Number (no) 480
Page pp.pp.-
#Pages 6
Date of Issue