文档介绍：摘要摘要当前,随着各领域科技的迅猛发展,各种微波、毫米波电路与系统在通信、导航、制导、遥测遥控、电子对抗等领域得到了广泛应用。同时,在微波、毫米波通信方面,出现了频率资源紧张的现象。各通信频段之间的间隔越来越窄,且所使用的频段也越来越高。滤波器是微波、毫米波通信系统中的重要组成部分, 在微波、毫米波系统中发挥着频率选择的重要作用。在目前的微波毫米波系统中, 滤波器的频率选择性、对干扰频段的抑制以及体积重量等性能指标都有了更高的要求。短路支节滤波器技术的应用,对于解决这些问题发挥了积极的作用。本文首先介绍了滤波器的设计方法和短路支节理论。然后,分析了支节参数与传输零点之间的关系,对短路支节的各种耦合方式进行了分析对比,得到了电容膜片和电感膜片耦合下的支节特性。基于相关理论,本文设计了一款中心频率在8GHz的自谐振膜片(FSS)短路支节带通滤波器,该滤波器结构紧凑、频率选择性好。同时,本文论证了该结构在双工器设计方面的应用。另外,设计了一款V波段的短路支节带阻滤波器,,阻带带宽1GHz,。短路支节滤波器技术在带通滤波器和带阻滤波器应用方面的良好性能。关键词:短路支节,滤波器,传输零点,频率选择性 ABSTRACT ABSTRACT Wm thefastdevelopment ofthetechnology,microwave andmillimeter-wave systems are abroadly applicated inmany fields,such mumcatio玛navigation, telecontrol and electro— the limit of the frequency resource,the frequency channel distributed munication systems es narrow,and the wave band that used by thesystems e higher isthe important part ofthe microwave andmillimeter-wavesystems,and isapplicated in frequency meet therequirements ofthesystems,the filter have toown good frequency selectivityand harmonic suppression. The method ofusing shorting stub filterCan bewell applicated to solve those ,we introduced theprocess ofthefilterdesign and theshorting stub relationship between shorting stub’Sparameters andtransmission zeros was alsoanalysed thecapability oftheshorting stubs、订也differentcoupling methods. Base onthetheory,a FSS filter、析廿1shorting stubsWasdesigned inthispaper,and itrealized good frequency selectivity wim acompact this structure Was used todesign anE—plane last,aband—stop filter、析也shorting stubsthat works in Vband center frequency is8GHz,and the width ofthe thosefilters,we call see thatthefilter谢也shorting stubsCan perform wellbothinband—passandband-stop condition. Keywords:shorting stub,filter,transmission zero,frequency selectivity 独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。据我所知,除了文中特别