0.4～2.2 GHz连续F类功率放大器设计  

Design of 0.4-2.2 GHz continuous class-F modes power amplifiers

作　　者：李阳[1,2] 高洪民[1] 刘刚[2] 冷永清[2] LI Yang;GAO Hongmin;LIU Gang;LENG Yongqing(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]北京理工大学信息与电子学院,北京100081 [2]中国科学院微电子研究所通信与信息工程研发中心,北京100029

出　　处：《太赫兹科学与电子信息学报》2019年第6期1065-1070,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(61501455)

摘　　要：连续F类功放(PA)通过引入修正因子,减轻功放对基波和二次谐波阻抗的要求,从而扩展F类功放的带宽。本文在连续F类功放基础上,提出一种新型修正型连续F类工作模式。通过引入电阻性二次和三次谐波阻抗进一步扩展连续F类功放的设计空间,使其可实现多个倍频程带宽。基于此理论,采用负载牵引方法对基波和谐波进行最佳阻抗提取,结合实频技术设计功放匹配网络,实现了一款超宽带高效率功率放大器。该功放在0.4~2.2GHz频段内,饱和输出功率为39.8~41.4 dBm,漏极效率在59%~79%之间,增益大于10 dB。仿真与测试结果良好,验证了该方法的正确性。The continuous Class-F Power Amplifier(PA)can mitigate the requirement of fundamental and second harmonic impedances by introducing a modified factor,thus extending the bandwidth of classF PAs.In this paper,a new modified continuous Class-F mode is proposed.The design space is extended by introducing the resistive second and third harmonic impedance,so that it can realize multi-octave bandwidth.Based on this theory,an ultra-broadband high-efficiency power amplifier is realized showing 59%-79%drain efficiency,39.8-41.4 dBm saturation output power and large signal gain above 10 dB in 0.4-2.2 GHz frequency range.The simulation and test results are good,which verifies the validity of the methodology.

关 键 词：超宽带 高效率 连续F类 功率放大器 

分 类 号：TN92[电子电信—通信与信息系统]