A Wideband and High Rejection Multimode Bandpass Filter Using Stub Perturbation

被引：61

作者：

Ma, Kaixue ^{[1
]}

Liang, Keith Chock Boon ^{[1
]}

Jayasuriya, Rajanik Mark ^{[1
]}

Yeo, Kiat Seng ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect Engn, Div Circuits & Syst, Singapore 635798, Singapore

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2009年 / 19卷 / 01期

关键词：

Filter; linear phase filter; microstrip; multimode resonator; network model; zero point; MULTIPLE-MODE RESONATOR; PATCH RESONATOR; SIZE; LINE;

D O I：

10.1109/LMWC.2008.2008554

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 multimode bandpass filter with high and wide rejection band is proposed by using an open stub. The open-stub has two functions in the filter: 1) perturbation for the multimode operation and 2) zero point generation at the stopband for the stopband control. With proper input/output coupling, additional two poles, i.e., four poles, can be generated for the proposed filter structure. The design is then verified by experiment. The single structure four-mode filter has low insertion loss, good stopband performance, and compact size and linear phase.

引用

页码：24 / 26

页数：3

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