A high-gain GaAs amplifier with an AGC Function

A high-gain amplifier consisting of three GaAs monolithic IC chips, a preamplifier, an automatic gain control (AGC) amplifier, and a postamplifier, is developed. The fabricated low-noise low-VSWR amplifier has a 45-dB gain, a 13-dB AGC range, and a 1.6-GHz bandwidth with a power consumption of 2.5 W. It is a promising candidate for use in high-speed data rate transmission systems.