2-18 GHz GaAs monolithic ultra-broadband amplifier

The design principle and research process of a 2 to 18 GHz GaAs microwave low noise ultrabroadband monolithic amplifier is described in this paper. Its final results are presented in the 2-18 GHz frequency range, the noise figure is 4.2-6.2 dB, the gain is 13.5-18.3 dB, input VSWR is less than 2.0 output VSWR is less than 2.5 for a packaged two stage amplifier.