高频功率放大及天线匹配实验电路的设计  

Design of High Frequency Power Amplification and Antenna Matching Experimental Circuit

作　　者：杨光义[1] 王舒远 乔昊明 许敬一 YANG Guangyi;WANG Shuyuan;QIAO Haoming;XU Jingyi(Electronic Information School,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学电子信息学院,武汉430072

出　　处：《实验室研究与探索》2022年第7期148-152,共5页Research and Exploration In Laboratory

基　　金：武汉大学教学改革建设项目(2020JG017);武汉大学设备处实验技术项目(WHU-2019-SYJS-05)。

摘　　要：为帮助学生理解谐振功放的知识点,构建相对完整的功放电路理论知识体系,设计了一套高频功率放大及天线匹配实验电路。电路采用信号源作为输入,功率管采用三极管2SC1970,谐振回路采用并馈串联形式,负载采用电阻或拉杆天线,实验内容丰富,实践性强。通过阻抗匹配软件和网络分析仪,从仿真和实践两个方面深入探讨阻抗匹配网络的设计与实现,达到理论与实践融会贯通的目的。教学实践表明,该实验效果良好,适合用于本科实验教学、业余科研和电子竞赛等多种场合。In order to help undergraduates understand the knowledge points of resonant power amplifier and construct a relatively complete theoretical knowledge system of power amplifier circuit,a set of high frequency power amplification and antenna matching experimental circuit is designed in this paper.The circuit uses the signal source as the input;the power tube uses the triode 2 SC1970;the resonant circuit adopts the parallel feed and series resonance form;and the load adopts the resistance or telescopic antenna.The experiment is rich in content and practical.Through impedance matching software and network analyzer,this paper deeply discusses the design and implementation of impedance matching network from two aspects of simulation and practice,so as to integrate theory and practice.The teaching practice shows that the experiment has a good effect and is suitable for undergraduate experimental teaching,amateur scientific research,electronic competition and other occasions.

关 键 词：高频功率放大 阻抗匹配 谐振 天线 实验教学 

分 类 号：TN761.2[电子电信—电路与系统] G642.423[文化科学—高等教育学]