Bandwidth enhancement of a triangle with gridded-square loop-loaded FSS for X and Ku bands

This study presents a Frequency Selective Surface (FSS) geometry for X and K
u
band applications. The geometry of the proposed FSS consists of a square loop and a triangle conductor which are etched to a single layer dielectric substrate. Absorption and reflection properties of the proposed geometry are discussed, and the bandwidths are determined via a Finite Integration Technique (FIT) based simulator. Bandwidth enhancement is performed with a parametric analysis of the FSS and frequency tunability is achieved by changing the material, as well.