Millimetre-wave balanced SIW bandpass filter with high common-mode suppression

被引：3

作者：

Guo, Zi-Jun ^{[1
]}

Hao, Zhang-Cheng ^{[1
,2
]}

Wu, Yi-Wen ^{[1
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Sch Informat Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] Purple Mt Labs, Nanjing, Peoples R China

来源：

ELECTRONICS LETTERS | 2020年 / 56卷 / 22期

关键词：

band-pass filters; waveguide filters; substrate integrated waveguides; millimetre wave filters; common-mode suppression; virtual electric wall; VEW; symmetry plane; metallic-via-array; conductor losses; metal sidewalls; six-pole balanced filter; asymmetric inductive windows; measured centre frequency; fractional bandwidth; satellite ground terminal application; low insertion loss; millimetre-wave balanced SIW bandpass filter; balanced substrate-integrated waveguide filter; frequency; 29; 45; GHz; DESIGN;

D O I：

10.1049/el.2020.1928

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 balanced substrate-integrated waveguide (SIW) filter based on a virtual electric wall (VEW) is presented and studied in this Letter. By introducing VEW on the symmetry plane for replacing the metallic-via-array, conductor losses from metal sidewalls can be avoided. As proof-of-concept example, a six-pole balanced filter using asymmetric inductive windows is designed and fabricated with a measured centre frequency of 29.45 GHz, as well as fractional bandwidth of 7.2% to cover satellite ground terminal application. The measured response shows a good concordance with the simulated one, indicating that the proposed balanced filter has the advantages of high common-mode suppression and low insertion loss.

引用

页码：1189 / 1191

页数：3

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