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Journal of Electromagnetic Waves and Applications Volume 27, 2013 - Issue 3
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Articles

A compact dual-band bandpass SIW filter

F. ChengEHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
,
X.Q. LinEHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China;Department of Electromagnetic Engineering, School of Electrical Engineering, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
,
X.X. LiuEHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
,
K.J. SongEHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
&
Y. FanEHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
Pages 338-344 | Received 16 Sep 2012, Accepted 25 Oct 2012, Published online: 20 Nov 2012
 
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Abstract

A novel method for the design of substrate integrated waveguide (SIW) dual-band bandpass filter is presented in this paper. Dual-band response is achieved by TE101 mode and diagonal TE201 (TE102) mode. The resonant frequency of TE101 mode can be adjusted by the location of perturbation vias while the resonant frequency of diagonal TE201 (TE102) mode keeps unchanged. A design example with second-order filter response is given and verified by experiments. The vertically stacked SIW resonators are used here to save the size.

Acknowledgments

This work was supported in part by NSFC (No. 60901022), in part by RFDP (No. 20090185120005), in part by the Fundamental Research Funds for the Central Universities (No. ZYGX2010J021), in part by the National Natural Science Foundation of China-NASF under Grant No. 10976005, and in part by the Program for New Century Excellent Talents in University (NCET-11-0066).

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