This paper presents a dual-band, polarization independent FSS for ISM and Wi-Fi shielding. The proposed structure has a band-stop characteristic for 2.5 and 5.1 GHz with a fractional bandwidth of 42% and 7%, respectively. The substrate of the FSS is a transparent material having a permittivity value of 2.77 and a thickness value of 1.48 mm, which provides band-pass characteristics for visible spectrum. The design, fabrication, and measurement of FSS were conducted for TM and TE polarizations; and satisfactory agreement was obtained
A multilayer ultra-wideband frequency selective surface (FSS), which filters the frequency range between 3.38 and 4.66GHz is presented. The proposed structure having a transparent substrate allows the light pass through itself, while it filters the electromagnetic waves at the frequency band of interest; and it has a bandwidth of 1.28 GHz. For the FSS structure, a transparency level of 52.5% obtained with a fractional bandwidth value of 32%. The structure is examined layer by layer; and the proposed FSS structures are evaluated in terms of bandwidth and transparency level
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