volume | PIER Journals

2018-06-12

Half-Mode SIW BPF Loaded with S-Shaped Complementary Spiral Resonators

Feng Wei,

Prof. Feng Wei

Xidian University

China

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Hao Jie Yue,

Dr. Hao Jie Yue

Collaborative Innovation Center of Information Sensing and Understanding at Xidian University and Science and Technology on Ante

Xidian University

China

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Jing-Pan Song,

Dr. Jing-Pan Song

Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, and Science and Technology on Ant

Xidian University

China

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Hong Yi Kang,

Dr. Hong Yi Kang

Collaborative Innovation Center of Information Sensing and Understanding at Xidian University and Science and Technology on Ante

Xidian University

China

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Bin Li

Dr. Bin Li

School of Information and Electronics

Beijing Institute of Technology

China

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Progress In Electromagnetics Research Letters, Vol. 77, 13-18, 2018

doi:10.2528/PIERL18032604

Abstract

A compact wideband bandpass filter (BPF) based on half-mode substrate integrated waveguide (HMSIW) is proposed in this paper. The proposed BPF is achieved by etching a couple of S-shaped complementary spiral resonators (S-CSRs) on the top layer of HMSIW cavity to achieve a wide passband as well as generate two transmission zeros in the vicinity of the passband respectively to improve the selectivity. In addition, compared with a conventional CSRs-loaded HMSIW structure, the proposed S-CSRs-loaded HMSIW makes the overall size of the filter largely reduced with the same electrical length. Among the HMSIW structures ever reported, the proposed S-CSRs are the first time to be introduced into HMSIW. To validate its practicability, a compact wideband HMSIW BPF loaded with S-SCRs has been designed and implemented through the PCB process. The measured and simulated S-parameters of the filter are presented to show the proposed filter's predicted performance, and good agreements is obtained between them. This result demonstrates that the newly proposed HMSIW structure loaded with S-CSRs is an excellent candidate for compact filters.

Citation

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Feng Wei, Hao Jie Yue, Jing-Pan Song, Hong Yi Kang, and Bin Li, "Half-Mode SIW BPF Loaded with S-Shaped Complementary Spiral Resonators," Progress In Electromagnetics Research Letters, Vol. 77, 13-18, 2018.
doi:10.2528/PIERL18032604

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