Abstract: In this paper, we considered a rectangular patch antenna which operates at 3.3518 GHz frequency is considered for analysis purpose. Here to study the effect that having the metallic pin via for each periodic metallic plate in the metamaterial structure we consider a single layer structure and double layered metamaterial structure. In case (1) the single layered Metamaterial is considered and comparative analysis is given with and without metallic pin via connections. Similarly for the case (2) the two layered metamaterial structure comparative analysis is given for without having any metallic pins in either layers, metallic pins in upper layer, metallic pins in lower layer and metallic pins in both layers. The comparative analysis is presented based on return loss, radiation pattern and other antenna parameters.

Keywords: Metamaterial, single layered, double layered, rectangular patch antenna