Design of Dual-Band Pass Polarization Insensitive and Transparent Frequency Selective Surface for Wireless Applications

This article proposes a novel, compact, transparent Frequency Selective Surface (FSS) geometry with dual-band pass characteristics for wireless applications. The proposed design consists of multiple concentric rings. The lower S-band dual-band response has been generated with the help of top and bottom mirror geometry. The proposed structure has a size of 14 × 14 mm
²
and provides dual-band responses at 3.0 GHz and 3.87 GHz. The first band response is from 2.85 − 3.18 GHz, the second band response is from 3.84−3.99 GHz, and the stop-band, appears from 3.8−3.96 GHz. The proposed geometry is designed in such a way that the responses can be shifted by controlling a single parameter. Further, the proposed geometry is polarization insensitive. The proposed transparent compact FSS is applicable for various S-band dual-band pass wireless applications.