A Miniaturized Angularly Stable FSS for Shielding GSM 0.9, 1.8, and Wi-Fi 2.4 GHz Bands

Kumar, TRS and Vinoy, KJ (2021) A Miniaturized Angularly Stable FSS for Shielding GSM 0.9, 1.8, and Wi-Fi 2.4 GHz Bands. In: IEEE Transactions on Electromagnetic Compatibility, 63 (5). pp. 1605-1608.

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Abstract

A triband band-stop spatial filter shield using frequency selective surface is designed and analyzed to block GSM 900, 1800, and Wi-Fi 2400 MHz frequency bands. Three constituent resonant elements exhibiting stop-bands are two Jerusalem cross (JC) elements with tortuous main arms, and a 45° rotated JC. The proposed unitcell is compact with size 0.078λ0 x 0.078λ0, where λ0 is the wavelength of lowest resonant frequency in free space. An equivalent circuit model is developed to understand the behavior of its constituent elements. The proposed design offers better miniaturization and stable frequency response for up to 60° of incidence angle for both TE and TM polarizations, as compared to the earlier reported designs in the bands mentioned previously. Shielding effectiveness is verified with measurements in an anechoic chamber.

Item Type:	Journal Article
Publication:	IEEE Transactions on Electromagnetic Compatibility
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Equivalent circuits; Frequency response; Frequency selective surfaces; Natural frequencies; Shielding, 2.4 GHz-band; Constituent elements; Equivalent circuit model; Incidence angles; Resonant elements; Shielding effectiveness; Spatial filters; TM polarization, Wireless local area networks (WLAN)
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	30 Nov 2023 03:27
Last Modified:	30 Nov 2023 03:27
URI:	https://eprints.iisc.ac.in/id/eprint/82935

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