DESIGN OF COMPACT AND HIGH SELECTIVITY TRI-BAND WIDEBAND MICROSTRIP BPF

被引：7

作者：

Deng, Hong-wei ^{[1
]}

Zhao, Yong-jiu ^{[1
]}

Zhou, Xiao-jun ^{[1
]}

Fu, Yong ^{[1
]}

Liu, Yan-yun ^{[2
]}

机构：

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

[2] PLA Univ Sci & Technol, Inst Command Automat, Nanjing 210007, Jiangsu, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2013年 / 55卷 / 02期

关键词：

microstrip BPF; tri-band; wideband; high selectivity; FILTER;

D O I：

10.1002/mop.27334

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 tri-band wideband microstrip bandpass filter (BPF) with compact size and high selectivity is proposed using three sets of resonators, that is, lambda/4 resonators, short-stub loaded resonator, and lambda/2 resonators. Each of the resonators can not only separately generate one passband, but also mainly control the passband performance. Due to the extended feed lines, parasitic coupling and intrinsic characteristics of the resonators, multiple transmission zeros can be created to improve the selectivity. A tri-band wideband microstrip BPF centered at 2.0, 3.6, and 5.5 GHz is designed, and the predicted results are confirmed experimentally. The size is only 0.156 x 0.303 lambda(g) in which lambda(g) is the guided wavelength at 2.0 GHz. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:258-261, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27334

引用

页码：258 / 261

页数：5

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