Driving-signal optimization for LDMOS-SOI class E power amplifier efficiency enhancement

Abstract

A class E power amplifier operating at 3. 7 GHz -one of the IEEE802.16e operating fre quencies -has been simulated using a LDMOS SOL BSlM3S01 model. Various driving signal waveforms were tested in order to determine which one leads to best class E performances. 8 7% of drain efficien cy and 74% of Power Added Efficiency (PAE) with gain of 8.3 dB was obtained providing a clipped sinus driving signal to the PA, from the best ofour knowledge, this is the highest PAE obtained at this fr equency using LDMOS transistor.