Design of triple-passband microwave filters using frequency transformations

被引：52

作者：

Lee, Juseop ^{[1
]}

Sarabandi, Kamal ^{[1
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Radiat Lab, Ann Arbor, MI 48109 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2008年 / 56卷 / 01期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

circuit synthesis; microwave filters; triple-passband filters;

D O I：

10.1109/TMTT.2007.912206

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：

This paper introduces a synthesis method for triple-passband microwave filters. A frequency transformation is developed for finding the locations of poles and zeros of the triple-passband filter. The poles and zeros obtained as such are optimized to achieve a transfer function with a reduced number of transmission zeros in order to reduce the number of cross-couplings. Six-and 12-pole triple-passband filters are synthesized for validation of this proposed method. A 12-pole triple-passband filter is fabricated with a microstripline structure and shown to provide good agreement between synthesis and measurement results. Finally, the frequency transformation for asymmetric triple-passband filters is briefly discussed.

引用

页码：187 / 193

页数：7

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