Performance Comparison of Polygonal Loop Frequency Selective Surfaces for Band Stop Applications

This paper investigates the performance of different polygon geometries of loop frequency selective surfaces (FSS). Various polygon shapes such as triangle, pentagon, hexagon, heptagon, octagon, nonagon, decagon, and circle of FSS, are analyzed and compared using results obtained from software-based simulation. It is observed that the bandwidth of band-stop response and band-stop frequency improves as the number of edges increases in the polygon. The paper exhibits that the bandwidth of the band stop response can be tuned by choosing a suitable polygonal design of FSS.