Full-wave analysis of coupling between cylindrical combline resonators

被引：17

作者：

Rong, Y ^{[1
]}

Zaki, KA ^{[1
]}

机构：

[1] Univ Maryland, Dept Elect Engn, College Pk, MD 20742 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 09期

关键词：

cavity filters; combline; filters; mode matching; resonators;

D O I：

10.1109/22.788614

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The mode-matching method is applied to the analysis of couplings between cylindrical combline resonators, which are key building elements of combline filters. Finite iris thickness and higher order mode interactions are rigorously taken into account, thus allowing any size of rectangular coupling iris to be analyzed, and accurate solutions to be obtained. Validity of the approach is verified by checking the field distributions in the resonators and comparing the numerical results with HFSS and measurements. As an application of the analysis, a filter design example is demonstrated. Typical coupling curves of practical importance are presented, which can help in the design of combline filters.

引用

页码：1721 / 1729

页数：9

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