A Dual-Band Combline Bandpass Filter Loaded by Lumped Series Resonators

被引：11
|
作者：
Cho, Young-Ho [1 ]
Baek, Hyung-Il [1 ]
Lee, Haeng-Seon [1 ]
Yun, Sang-Won [1 ]
机构：
[1] Sogang Univ, Dept Elect Engn, Seoul, South Korea
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2009年 / 19卷 / 10期
关键词：
Combline bandpass filter (BPF); dual-band; microstrip; quarter-wavelength (lambda/4) resonator; source-load cross coupling;
D O I：
10.1109/LMWC.2009.2029737
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 letter presents a dual-band combline bandpass filter (BPF) loaded by lumped series resonators. The proposed filter configuration can easily generate two desired passbands by controlling the resonant frequencies of the comblines as well as the series resonators. Furthermore, the skirt frequency characteristics between the two passbands are improved by transmission zeros introduced by source-load coupling via a lumped element capacitor. Two-pole dual-BPF with center frequencies of 1.2 and 1.54 GHz is designed and the measured results agree well with simulated results.
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页码：626 / 628
页数：3
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