UHF波段功率放大器设计  

Design of UHF Band Power Amplifier

作　　者：彭书林 姚振东[1] PENG Shulin;YAO Zhendong(Key Laboratory of Atmospheric Sounding,College of Electronic Engineering,Chengdu University of Information Technology,Chengdu 610225,China)

机构地区：[1]成都信息工程大学电子工程学院/大气探测重点开放实验室,四川成都610225

出　　处：《成都信息工程大学学报》2024年第1期8-12,共5页Journal of Chengdu University of Information Technology

基　　金：国家自然科学基金资助项目(41475033);中国气象局公益性行业(气象)科研专项资助项目(GYHY201306072)。

摘　　要：为某UHF波段的发射机设计一款己类功率放大器,工作于频段430~455 MHz,介绍了谐波控制和匹配网络的设计。在放大器输出匹配网络前添加谐波控制电路,通过对晶体管漏极的谐波控制生成己类放大器的工作波形。同时,在输入、输出阻抗是复阻抗的情况下,使用简化实频技术对电路进行匹配,提高了匹配网络的效率。测试结果显示,该放大器输出功率达60 dBm,对应的增益为20 dB,PAE为79%,达到设计要求。This paper designs a class-F power amplifier for a certain UHF band transmitter,operating in the430-455 MHz frequency range,and introduces the design of harmonic control and matching networks in detail.A harmonic control circuit is added before the amplifier output matching network to generate the operating waveform of a classF amplifier through harmonic control of the transistor drain.At the same time,when the input and output impedances are complex impedances,simplified real frequency technology is used to match the circuit,which improves the efficiency of the matching network.The final test results show that the output power of the amplifier reaches 60 dBm,the corresponding gain is 20 dB,and the PAE is 79%,meeting the design requirements.

关 键 词：UHF波段 己类功率放大器 谐波控制 简化实频技术 

分 类 号：TN834[电子电信—信息与通信工程]