Class E Outphasing Combiner Design at 700 MHz Theory and Simulation

Abstract

In this paper, we would discuss the Class E power amplifier using outphasing toplogy and its related equations, followed by a brief theoretical operation of outphasing. One of the important factors considered in any amplifier design is efficiency, as communication technology becomes more complex, an out of phase signal in a double ended amplifier, could result in drastically reduced efficiency. Outphasing can be used to alleviate this problem. The result shows that the outphasing technique can maintain the efficiency at above 70% even when the input signal becomes increasingly out of phase and the output signal is decreased. The outphasing technique shows promise as it can be used in high efficiency applications such as electric car, wireless charging station.