Design of Tri-Band Filters With Improved Band Allocation

被引：63

作者：

Chen, Bo-Jiun ^{[1
,2
]}

Shen, Tze-Min ^{[1
,2
]}

Wu, Ruey-Beei ^{[1
,2
,3
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan

[3] Univ Ghent, Dept Informat Technol, B-9000 Ghent, Belgium

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2009年 / 57卷 / 07期

关键词：

Band allocation; coupling matrix; stepped-impedance resonators (SIRs); COUPLING-MATRIX DESIGN; COMPACT DUAL-BAND; PASSBAND;

D O I：

10.1109/TMTT.2009.2022888

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 new design method for tri-band filters with improved band allocation is proposed. The design concept treats different band allocations with different methodologies. For the bands assigned to adjacent frequency regions, transmission zeros are introduced to split one of the single bands into two. For the bands that are assigned separately, different harmonic modes of stepped-impedance resonators are used to realize different passbands. Two design examples with different responses and band allocations are given, and were verified by experiments, as well as full-wave simulation results.

引用

页码：1790 / 1797

页数：8

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