Design and Implementation of a Triple-Mode Planar Filter

Author

Xi-Cheng Zhu ; Wei Hong ; Ke Wu ; Hong-Jun Tang ; Zhang-Cheng Hao ; Ji-Xin Chen ; Peng Chu

Author_Institution

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

Volume

23

Issue

5

fYear

2013

fDate

May-13

Firstpage

243

Lastpage

245

Abstract

A novel planar triple-mode resonator is proposed and implemented by placing an additional metallic via at the center of a circular dual-mode substrate integrated waveguide (SIW) cavity resonator. The resonant frequency of the dominant mode in the SIW cavity increases remarkably and become close to the resonant frequencies of the TM₁₁₀-similar mode. Three asymmetric bandpass filters utilizing this resonator are designed and fabricated. The measured results are in good agreement with the simulation results.

Keywords

band-pass filters; cavity resonator filters; circular waveguides; substrate integrated waveguides; SIW cavity resonator; TM₁₁₀-similar mode; asymmetric bandpass filters; circular dual-mode substrate integrated waveguide cavity resonator; metallic via; resonant frequency; triple-mode planar resonator filter design; Degenerated modes; dual-mode resonator; substrate integrated waveguide (SIW) cavity; triple-mode filter;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2013.2253313

Filename

6490442