A new GaAs variable-gain amplifier MMIC with a wide-dynamic-range and low-voltage-operation linear attenuation circuit

Author

Inamori, Masahiko ; Motoyoshi, Kaname ; Kitazawa, Takahiro ; Tara, Katsushi ; Hagio, Masahiro

Author_Institution

Discrete Device Div., Matsushita Electron. Corp., Kyoto, Japan

Volume

48

Issue

2

fYear

2000

fDate

2/1/2000 12:00:00 AM

Firstpage

182

Lastpage

186

Abstract

A 40-dB dynamic-range variable-gain amplifier (VGA) designed for the code division multiple access (CDMA) cellular phone has been developed. A wide-dynamic-range VGA under a low control voltage of 2.0 V, compatible with high linearity and low distortion characteristics, essential for CDMA, is realized by the new gain control technique. It greatly contributes to the high performance and small size of RF circuits for CDMA cellular handsets

Keywords

III-V semiconductors; MMIC amplifiers; UHF amplifiers; UHF integrated circuits; cellular radio; code division multiple access; electric distortion; field effect MMIC; gallium arsenide; low-power electronics; 2.0 V; GaAs; III-V semiconductors; cellular handsets; code division multiple access; control voltage; distortion; gain control technique; linearity; low-voltage-operation linear attenuation circuit; variable-gain amplifier MMIC; Cellular phones; Circuits; Gain control; Gallium arsenide; Linearity; Low voltage; MMICs; Multiaccess communication; Radio frequency; Voltage control;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.821757

Filename

821757