C-band GaAs MMIC limiting power amplifier with small insertion-phase variation

A C-band GaAs MMIC (monolithic microwave integrated circuit) limiting power amplifier has been developed by cascading three kinds of MMIC chips (a limiting amplifier, a gain-control amplifier, and a power amplifier) in a single package. It provides an output power of 33.2+or-0.2 dBm with an insertion phase variation of less than 2.3 degrees over an input power range of from 13.5 dBm to 18.5 dBm. The output power can be controlled between 17.8 dBm and 33.2 dBm with an insertion phase variation of less than 22.5 degrees.<>