Designing high-efficiency class-E LDMOS power amplifier

Multifunctional RF front ends need to transmit different types of signals while maintaining efficiency and signal quality. we show that switched mode class-E power amplifiers can achieve high efficiency at RF frequency. In this paper, a 20W class-E power amplifier has been designed using MRF21030. The input match network and output network has been simulated carefully and the output efficiency of power amplifier is 63%. Further more, the effect of V
dd
and input power have also been analyzed.