The design of 14GHz temperature-compensated 20Watt power amplifier module

We report on the design of a temperature compensated power amplifier module which can generate 20 Watt output power with 34 dB gain at 14 GHz. This module is made of one commercial microwave monolithic integrated circuit and three discrete power transistors. Allowing gate biases of these power transistors to be automatically adjusted with ambient temperature, output power of the module can now be more steadily reaching stabilization. Details regarding the microwave power amplifier and the DC biasing circuit will be presented in this paper.