Title :
A GaAs MMIC chip set for 1.9 GHz Japanese personal handy phone system
Author :
Kamozaki, Keigo ; Tanaka, Satoshi ; Hase, Eiichi ; Nakajima, Akishige ; Fujioka, Toru ; Sugano, K. ; Imakado, Yoshitaka ; Fujiwara, Koji ; Okamoto, Tatsuo ; Sato, Kozo ; Shigeno, Yasushi ; Arai, Isao ; Yamane, Masao ; Kondoh, Hiroshi
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
The GaAs MMIC chip set consisting of SPDT switch, low noise amplifier, power amplifier, AGC amplifier, up-converter and down converter has been developed to meet the specifications for a 1.9 GHz PHS front-end. The low noise amplifier and power amplifier achieve a noise figure of 2.2 dB and a power added efficiency of 30%, respectively. The SPDT switch employs a new circuit configuration with feedback capacitors, and achieved an output power at the 1dB compression point of 30 dBm. The up-converter employs single mixer, which suppresses local signal leakage to 29 dBc. The down-converter employs a single mixer using dual gate FET, to reduced DC power dissipation
Keywords :
III-V semiconductors; MESFET integrated circuits; MMIC frequency convertors; MMIC power amplifiers; UHF integrated circuits; UHF power amplifiers; automatic gain control; field effect MMIC; field effect transistor switches; gallium arsenide; integrated circuit noise; microwave power amplifiers; power amplifiers; telephone sets; telephony; 1.9 GHz; 1dB compression point; 2.2 dB; 33 percent; AGC amplifier; DC power dissipation reduction; GaAs; III-V semiconductor; Japanese personal handy phone system; MMIC chip set; PHS front-end; SPDT switch; UHF; circuit configuration; down converter; dual gate FET; feedback capacitors; local signal leakage suppression; low noise amplifier; mixer; noise figure; output power; power added efficiency; power amplifier; up-converter; Circuit noise; Feedback circuits; Gallium arsenide; Low-noise amplifiers; MMICs; Noise figure; Output feedback; Switches; Switching circuits; Switching converters;
Conference_Titel :
Universal Personal Communications. 1995. Record., 1995 Fourth IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-2955-4
DOI :
10.1109/ICUPC.1995.496911
