A class E power amplifier design for drain modulation under a high PAPR WiMAX signal

摘要

This paper describes the design of a class E power amplifier (PA) destined to be used as the final stage of a polar transmitter under IEEE 802.16e Mobile WiMAX signal excitation. Based on a 60 W GaN HEMT device, the load condition for optimum efficiency is set close to the maximum value of the power generating function, as defined in, for an OFDMA modulating signal. The possible impact of such average-based design on the AM profile is also put into consideration.