Differential substrate integrated waveguide bandpass filter with improved common-mode suppression utilising complementary split-ring resonators

被引：10

作者：

Zhang, Hao ^{[1
]}

Kang, Wei ^{[1
]}

Wu, Wen ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Nanjing 210094, Jiangsu, Peoples R China

来源：

ELECTRONICS LETTERS | 2017年 / 53卷 / 07期

关键词：

substrate integrated waveguides; band-pass filters; waveguide filters; cavity resonator filters; microwave filters; differential substrate integrated waveguide bandpass filter; improved common-mode suppression; TE102-mode cavities; common-mode signal reduction; CM signal reduction; differential-mode signal; transmission zeros; dual-mode cavity cross coupling; symmetrically etching complementary split-ring resonators; symmetrical plane; frequency; 8; 07; GHz; DESIGN;

D O I：

10.1049/el.2016.4192

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 differential substrate integrated waveguide bandpass filter is proposed. The TE102-mode cavities arranged on the symmetrical plane could efficiently reduce the common-mode (CM) signal, meanwhile, transmitting the differential-mode signal. Additional transmission zeros have been obtained by using cross coupling in the dual-mode cavities. Moreover, by symmetrically etching complementary split-ring resonators on the bottom layer of the substrate, the CM could be suppressed whereas differential signals are not affected. To verify the above design concept, a prototype operating at 8.07 GHz has been realised and shows the desired filtering performance.

引用

页码：508 / 510

页数：2

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