Vol. 94

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2020-11-09

Study on Ultra-Wide Stopband Miniaturized Multilayer Frequency Selective Surface with Capacitive Loading

By Guangming Zheng, Cuilin Zhong, Liang Tang, Peng Luo, and Yan Wang
Progress In Electromagnetics Research Letters, Vol. 94, 117-123, 2020
doi:10.2528/PIERL19111201

Abstract

In this paper, a novel miniaturized frequency selective surface (MFSS) with capacitive loading is proposed; it has characteristics of low profile, second-order, wide-band, and remarkable wide stop-band properties. In a specific frequency band, the proposed MFSS has a second-order filter function characteristic. The proposed MFSS is composed of three metallic layers separated by two dielectric substrates, which offers the spatial form of the second order microwave filter. The band and operating frequency can be controlled by the thickness of dielectric substrates and the gaps between the capacitive loading structures. The element size is smaller than 0.05λ x 0.05λ. The element thickness is less than λ/30, where λ is the free space wavelength at the resonant frequency. The frequency response produced by the proposed MFSS had very good stability when the plane wave incidence angles varied from 0 to 60 degrees. The fundamental frequency f0 is 2.45 GHz; the relative bandwidth δ is 10%; and the stop-band is from 3 GHz to 39.6 GHz. The frequency response demonstrates the excellent filtering performance.

Citation


Guangming Zheng, Cuilin Zhong, Liang Tang, Peng Luo, and Yan Wang, "Study on Ultra-Wide Stopband Miniaturized Multilayer Frequency Selective Surface with Capacitive Loading," Progress In Electromagnetics Research Letters, Vol. 94, 117-123, 2020.
doi:10.2528/PIERL19111201
http://www.jpier.org/PIERL/pier.php?paper=19111201

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