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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 2, February 2000
Table of Contents for this issue
Complete paper in PDF format
A New GaAs Variable-Gain Amplifier
MMIC with a Wide-Dynamic-Range and Low-Voltage-Operation
Linear Attenuation Circuit
Masahiko Inamori,
Kaname Motoyoshi,
Takahiro Kitazawa,
Katsushi Tara and Masahiro Hagio
Page 182.
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.
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