液晶与显示2016，Vol.31Issue(7)：703-707,5.DOI:10.3788/YJYXS20163107.0703
放大器的新型谐波匹配网络的研究与实现
Research and realization of a new type harmonic matching network for amplifier
摘要
Abstract
In communication systems,power amplifiers (PAs)play an important role and consume large amount of power.As a consequence,the enhancement of amplifier efficiency is significantly im-portant for saving energy.The goal for this paper is to find the matching impedances of harmonics and build a matching network for optimum efficiency performance of an amplifier.The load pull technique is applied in this paper to control the impedances with automatically controlled tuners.Firstly,a cali-bration of the automatically tuners is made to get the correspondence of tuner positions and imped-ance.Then the tuners are used to control and change the load impedances at 2 nd and 3 rd harmonics for maximum efficiency performance of an amplifier at fundamental frequency and finally to build a matc-hing network according to the matching impedances at harmonics.Experimental results indicate that the efficiency of the amplifier with harmonic matching can be improved 2.13%.With the method im-plemented in this paper,the efficiency of the amplifier was improved 2.13%,it realized the goal to improve the efficiency of an amplifier with harmonic.It proves the feasibility of the method investiga-ted in this paper.关键词
谐波/匹配/负载牵引技术Key words
harmonic/matching/load pull technique分类
信息技术与安全科学引用本文复制引用
朱弘旭..放大器的新型谐波匹配网络的研究与实现[J].液晶与显示,2016,31(7):703-707,5.基金项目
吉林省重点科技攻关项目(No．20150204039GX) （No．20150204039GX）
广东省省级科技计划项目(No．2013B010101020) Supported by Key Scientific Research Project of Jilin Province(No．20150204039GX) （No．2013B010101020）
Supported by Pro-vincial Science and Technology Plan Projects of Guangdong Province (No．2013B010101020) （No．2013B010101020）
