一种宽禁带器件的高效E类功率放大器设计

摘要

Class-E power amplifier is a new high-efficiency amplifier, it is a switch mode power amplifier and the theoretical efficiency can be 100%. It can be used as the last stage power amplifier for radar, communication, electronic warfare and other areas, and also be an important mean of achieving high effi- ciency, high power and miniaturization. The working principle is analysed and a high-efficiency class-E power amplifier at L-band is designed. Output power is greater than 10 W; the maximum efficiency is up to 74.8%.%E类功率放大器是一种新型高效率放大器,属于开关模式功率放大器,其理论效率可以达到100%。可用于雷达、通信和电子对抗等领域的末级功率放大器,是系统高效率、高功率和小型化功率放大器的重要途径。通过分析其工作原理,设计了一款L波段高效E类功率放大器,输出功率大于10 W,实际漏极效率达到74.8%。