Wideband antenna using cavity backed non-uniform double layered meta-surface

Abstract

A double layered non-uniform meta-surface based antenna has been designed. High gain and wideband performance has been achieved over a band of 2.1 GHz to 3.7 GHz. The broadside gain has been further improved using a modified non-uniform meta-surface. The structure is extremely light weight and has been embedded inside a cavity, thus it can be flush mounted onto an airborne platform.