Citation :

Amenah Jamal Rashid, 2025. "A Double Band Frequency Selective Surface Design for WLAN Bands Shielding" ESP International Journal of Advancements in Science & Technology (ESP-IJAST)  Volume 3, Issue 2: 63-67.

Abstract :

This research introduces a frequency-selective surface (FSS) through a dual-band stop designed specifically for wireless local area network (WLAN) running on 2.4 GHz besides 5 GHz. The dimensions of the element cell are 0.2 λ × 0.2 λ, wherever λ denotes the wavelength of its initial resonant frequency. FR4 takes a thickness of 7.1 mm, a permittivity of 3.2, and a loss tangent of 0.025. The presented design achieved an reduction of 31 dB on 2.4 GHz then 24 dB on 5 GHz. A comprehensive examination of incidence angles, substrate thickness, outer width, and inner width had been performed. The design exhibits angular stability at angles of up to 90° degrees in the circumstance of transverse electric (TE) and transverse magnetic (TM) polarization.

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Keywords :

Band stop FSS, Dual-band FSS, FSS, WLAN FSS.