EVANESCENT-MODE COUPLING OF DUAL-MODE RECTANGULAR WAVE-GUIDE FILTERS

被引:32
作者
CHANG, HC
ZAKI, KA
机构
[1] Electrical Engineering Department, University of Maryland, College Park
关键词
Electric Filters--Mathematical Models - Electric Networks--Equivalent Circuits;
D O I
10.1109/22.85405
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
A novel coupling method for dual-mode rectangular waveguide filters is presented and analyzed. Unequal coupling between dual-mode pairs of rectangular cavities is achieved without the need of an iris. This method replaces the iris completely while offering a practical, flexible, and wide range of couplings. Mode matching method is used in the analysis and its accuracy is verified by experiments. A four-pole dual-mode elliptic function filter using this new coupling method is built and tested. Results show excellent agreement with the analysis.
引用
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页码:1307 / 1312
页数:6
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