DESIGN OF COMPACT DUAL- AND TRI-BAND BANDPASS FILTERS USING λ/4 AND λ/2 RESONATORS

被引：19

作者：

Chen, Fu-Chang ^{[1
]}

Chu, Qing-Xin ^{[1
]}

Tu, Zhi-Hong ^{[1
]}

机构：

[1] S China Univ Technol, Sch Elect & Informat Engn, Guangzhou, Guangdong, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2009年 / 51卷 / 03期

关键词：

dual-band; tri-band; microstrip; bandpass filter; lambda/2; resonator; lambda/4; STEPPED-IMPEDANCE RESONATORS;

D O I：

10.1002/mop.24111

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 article presents a novel approach for designing dual- and tri-band bandpass filters with independently controlled center frequencies and bandwidths. lambda/4 and lambda/2 resonators are used to obtain dual- and tri-band responses. lambda/4 resonators are designed to operate at the lower passband(s) and lambda/2 resonators tire designed to operate at the higher passband. The bandwidth of each passband can be tuned independently by adjusting the coupling gap. To verify the presented concept, two experimental examples of filters have been designed and fabricated and good agreements are shown between the simulation and the measurement. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 638-641, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24111

引用

页码：638 / 641

页数：4

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