Ultra-wideband Frequency Selective Surface for Communication Applications

Abstract

A low-profile ultra-wideband (UWB) band-stop frequency selective surface (FSS) is designed for S-, C-, X-and Ku-bands communication applications. The FSS is constructed by using square and circular loop elements printed on the top and bottom sides of the RO3210 substrate. The FSS has been designed to reduce the electromagnetic interference (EMI) as well as to mitigate the harmful effects of electromagnetic radiation on the human body caused by different radio devices. The dimension and size of the UWB FSS have been reduced to 0.12 λ× 0.12 λ and 90%, respectively, as compared to the reported literature. The other advantages of the proposed FSS are that it is low profile, it has a simplified geometry and it ensures better angular and polarization stability of up to 85 • . The -10 and -20 dB bandwidths of the proposed FSS are 146% (2.0-13.0 GHz) and 80% (4.87-11.42 GHz), respectively. Theoretical results have been obtained using ANSYS HFSS and verified through measured results.

Modelling of Wideband Concentric Ring Frequency Selective Surface for�G燚evices

“…Frequency selective surfaces (FSS) have attracted a lot of attention in recent years as a method of constructing spatial filters because they may impart filtering features in the spatial domain [1][2][3][4][5]. Recent study has sought to build and promote a square shaped loop, circumferential ring, ellipsoid, hexagonal geometry, and a cross dipole as geometric patterns that might be employed in the electromagnetic spectrum [6][7][8]. These filters are used in telecommunications to control electromagnetic radiation.…”