X, Ku-Band GaAs Monolithic Amplifier

A two-stage X-, Ku-band monolithic FET amplifier has been developed. Initial results indicate a gain of 7-10 dB across the 8-20 GHz band with a typical rf power output of 100 mW. A balanced amplifier consisting of two two-stage amplifiers and a pair of Lange couplers yielded 10.5 +- 1 dB gain from 7.5 to 18 GHz and an output power of 150-250 mW in Ku-band.