Design and analysis of antenna designs for enhancing bandwidth in circular patch structures

Abstract

Metamaterial loaded antenna analysis for circular patch structure is demonstrated in this paper. The proposed circular patch radiator designs comprise of varied numbers of slots and metamaterial unit cells. Bandwidth enhancement is achieved in X-band (8-12GHz) and Ku-band (12-18 GHz) using the metamaterial unit cells etched on the circular radiator of the antenna. The slots and metamaterials segregate the mode of propagation of the antenna and also helps in identifying the cause of the analysis. This also helps in impedance matching and hence maximum power output can be achieved. It is found that number of bands increased with adding more slots and the bandwidth increased with metamaterial unit cells etched on a circular patch antenna.