梳状SIR交叉耦合同轴腔滤波器的设计  

Design of combline SIR cross-coupled coaxial-cavity filter

作　　者：韩世虎[1] 王锡良[1] 樊勇[1] 

机构地区：[1]电子科技大学电子工程学院电子系统工程研究所,四川成都610054

出　　处：《电路与系统学报》2007年第1期139-142,共4页Journal of Circuits and Systems

基　　金：四川省青年科学基金资助项目(M16010201JS04001)

摘　　要：四分之一波长SIR(Stepped Impedance Resonators)作为同轴腔滤波器的基本谐振单元,利用梯度法优化提取了交叉耦合滤波器的耦合矩阵,采用梳状线形式,设计了一种梳状SIR交叉耦合同轴腔滤波器。从滤波器的实测曲线可以看出,这种形式的滤波器很好的实现了宽阻带、小体积和高选择性的设计思想。λg/4-type SIR is taken as basic resonator unit of coaxial filters. Coupling matrix of cross-coupled filter is extracted by the optimization method of analytic gradients. Adopted pectination form, a kind of combline cross-coupled coaxial-cavity filter with λg/4-type SIR is designed in this paper. The measured results show that fabricated four-cavities filter attains the demanding goals of small size, wide stopband and high selectivity.

关 键 词：阶跃阻抗谐振器 交叉耦合 同轴腔滤波器 优化方法 

分 类 号：TN713[电子电信—电路与系统]