Balanced Substrate Integrated Waveguide Filter

Author

Peng Chu ; Wei Hong ; Kuangda Wang ; Hongjun Tang ; Zhangcheng Hao ; Jixin Chen ; Ke Wu

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China

Volume

62

Issue

4

fYear

2014

fDate

Apr-14

Firstpage

824

Lastpage

831

Abstract

A novel balanced filter realized in the form of substrate integrated waveguide (SIW) is proposed and studied in this paper. Based on the inherently horizontal and vertical symmetry of the SIW, this filter presents inherently high-performance balanced property with advantages of no identical pair requirement, being free from the limitation of symmetrical topology, easy and flexible design, high common-mode (CM) suppression, and robust CM suppression when comparing with conventional counterparts. Several prototypes are designed, fabricated, and measured to verify the expected properties.

Keywords

substrate integrated waveguides; waveguide filters; CM suppression; SIW filter; balanced substrate integrated waveguide filter; high common mode suppression; symmetrical topology; Band-pass filters; Couplings; Educational institutions; Fabrication; Filtering theory; Substrates; Topology; Balanced circuit; bandpass filter; common-mode (CM) suppression; substrate integrated waveguide (SIW);

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2014.2307055

Filename

6754166