Slotted Wideband Frequency Selective Reflectors for Sub-6 GHz 5G Devices

Abstract

Due to the large spectrum usage, frequency selective surfaces (FSS) are of considerable importance. A study of numerous slotted frequency selective reflectors (SFSR’s) consisting of rectangle, circular, hexagonal and elliptical angular stability slots has been addressed in this manuscript. This paper consists of four designs proposed for exhibiting frequency reflective behavior in sub-6 GHz 5G applications. Slotted frequency selective reflectors fall in the category of spatial filters which enable them to operate in a variety of frequency ranges when combined with flat or curved sub-reflectors. The proposed FSS configurations operate in the n77, n78 and n79 sub-6GHz 5 G spectrum bands and have a broad stop band from 3.30 GHz to 5.00 GHz. In the proposed architectures of simplified arrangements, angular stability has been obtained. Ansys ® HFSS designer is used to perform analytical study.