Miniaturized and high-selectivity substrate integrated waveguide (SIW) bandpass filter loaded by complementary split-ring resonators (CSRRs)

被引:16
|
作者
Jiang, W. [1 ]
Shen, W. [1 ]
Zhou, L. [1 ]
Yin, W. -Y. [1 ,2 ]
机构
[1] Shanghai Jiao Tong Univ, Key Lab, Minist Educ Design & Electromagnet Compatibil Hig, Shanghai 200240, Peoples R China
[2] Zhejiang Univ, State Key Lab MOI, Ctr Opt & EM Res, Hangzhou 310058, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
TECHNOLOGY; MICROSTRIP; DGS; CAVITIES; DESIGN; HMSIW;
D O I
10.1080/09205071.2012.702203
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
This paper presents an effective technique to obtain miniaturized and high-selectivity substrate integrated waveguide (SIW) bandpass filters by loading complementary split-ring resonators (CSRRs) at the SIW cavities. The existence of the CSRR enables a considerable reduction of the resonance frequency of a conventional SIW cavity thanks to the coupling effect between CSRR and SIW cavity. Besides, a sharp roll-off is generated in a higher stopband due to the characteristics of CSRRs. To demonstrate the operation principal, the second-and third-order SIW bandpass filters are fabricated using standard printed circuit board technology, showing advantages of compact size, good selectivity, easy fabrication, and integration with other circuits. The measured S-parameters agree well with the simulated ones.
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页码:1448 / 1459
页数:12
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