NOVEL QUINTUPLE-MODE BROADBAND MICROSTRIP BPF WITH STUB-LOADED MULTIPLE-MODE RESONATOR

被引：5

作者：

Deng, Hongwei ^{[1
]}

Zhao, Yongjiu ^{[1
]}

Zhang, Xueshun ^{[1
]}

Zhang, Lu ^{[1
]}

Lu, Xin ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Informat Sci & Technol, Nanjing 210016, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2011年 / 53卷 / 04期

关键词：

BPF; MMR; broadband; quintuple-mode; stub-loaded resonator; FILTER;

D O I：

10.1002/mop.25849

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：

In this article, a novel compact broadband microstrip bandpass filter with high selectivity and wide upper-stopband performance is proposed using quintuple-mode stub-loaded resonator. The proposed resonator can generate two odd-modes and three even-modes in the desired band. The open stub and short-circuited stub at its central plane can not only specially control the even-mode resonant frequencies, whereas the odd-mode ones are fixed, but also generate two transmission zeros near the upper and lower cut-off frequencies, leading to high rejection skirt. Two identical impedance-stepped open stubs are mainly applied to adjust the high resonant modes (f(m4), f(m5)) into desired passband and excite one additional transmission zero to deepen the upper-stopband. A quintuple-mode broadband filter with the fractional bandwidth better than 64% is simulated, fabricated, and measured. The EM simulated and measured results are presented and excellent agreement is obtained. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:799-803, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25849

引用

页码：799 / 803

页数：6

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