A High Efficiency Band-Pass Filter Based on CPW and Quasi-Spoof Surface Plasmon Polaritons

Zhao-Min Chen; Yanhui Liu; Xinhua Liang; Jun Wang; Yuan Li; Jiahao Zhu; Wen Jiang; Xiaopeng Shen; Lei Zhao; Tie Jun Cui

doi:10.1109/ACCESS.2019.2963062

IEEE Access (Jan 2020)

A High Efficiency Band-Pass Filter Based on CPW and Quasi-Spoof Surface Plasmon Polaritons

Zhao-Min Chen,
Yanhui Liu,
Xinhua Liang,
Jun Wang,
Yuan Li,
Jiahao Zhu,
Wen Jiang,
Xiaopeng Shen,
Lei Zhao,
Tie Jun Cui

Affiliations

Zhao-Min Chen: ORCiD; School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Yanhui Liu: ORCiD; AVIC Beijing Changcheng Aeronautical Measurement and Control Technology Research Institute, Beijing, China
Xinhua Liang: ORCiD; Department of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, China
Jun Wang: ORCiD; State Key Laboratory of Millimeter-Waves, School of Information Science and Engineering, Southeast University, Nanjing, China
Yuan Li: ORCiD; Jiangsu Key Laboratory of Education Big Data Science and Engineering, School of Mathematics and Statistics, Jiangsu Normal University, Xuzhou, China
Jiahao Zhu: ORCiD; Jiangsu Key Laboratory of Education Big Data Science and Engineering, School of Mathematics and Statistics, Jiangsu Normal University, Xuzhou, China
Wen Jiang: ORCiD; Jiangsu Key Laboratory of Education Big Data Science and Engineering, School of Mathematics and Statistics, Jiangsu Normal University, Xuzhou, China
Xiaopeng Shen: ORCiD; Department of Physics, China University of Mining and Technology, Xuzhou, China
Lei Zhao: ORCiD; School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Tie Jun Cui: ORCiD; State Key Laboratory of Millimeter-Waves, School of Information Science and Engineering, Southeast University, Nanjing, China

DOI: https://doi.org/10.1109/ACCESS.2019.2963062
Journal volume & issue: Vol. 8
pp. 4311 – 4317

Abstract

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A high efficiency and compact band-pass filter based on coplanar waveguide (CPW) is investigated in this paper, which lower and upper cut-off frequencies of the proposed filter can be tuned independently. In the proposed design, interdigital structure is used to filter the low frequency wave and a quasi-spoof surface plasmon polaritons (Q-SSPPs) structure is designed for tuning the higher cut-off frequency. The proposed Q-SSPPs structure contains only one cross-shaped element and keeps the similar properties of periodic SSPPs structure. The operating principle of the proposed design is explained by field distribution, dispersion curves, and equivalent circuits. The studies of vital parametric are carried out for better understanding the influences of the concerning parameters on the tunability. The simulated results indicate that the proposed design can obtain a wide bandwidth from 8.8 GHz to 17 GHz (about 63.6%) with high transmission efficiency (IS11I <; -15 dB and IS21I > -0.2 dB). A prototype of the proposed design is fabricated and the measured results show good agreement with the simulated ones.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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