Abstract

A successful development of a very high performance and reliable power PHEMT MMIC technology is reported. In this paper, a Ku-Band 1W AlGaAs/InGaAs/GaAs PHEMT MMIC power amplifier for VSAT ODU application is demonstrated. This four-stage amplifier is designed to fully match for a 50Ω input and output impedance. With 7V and 700mA DC bias condition, the amplifier has achieved 30dB small-signal gain, 30.8dBm 1-dB gain compression power with 24.5% power-added efficiency (PAE) and 31.3dBm saturation power with 27.5% PAE from 14 to 17GHz.

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