Design of a Patch Antenna for High-Gain Applications using 1D-EBG Structures

Abstract

This research paper delves into the precise determination of the band gap within one-dimensional Electromagnetic Band Gap (1D-EBG) structures, employing the Transfer matrix method as a key analytical tool.Following this investigation, a groundbreaking design of a 1D-EBG antenna is introduced with the specific goal of augmenting directivity at the frequency of 3.5 GHz, strategically catering to WiMax applications.The primary objective of this study is to validate the proposed methodology and evaluate the performance of the directive 1D-EBG antenna precisely at the resonant frequency of 3.5 GHz, ensuring optimal adaptation.Furthermore, the paper highlights the significant influence of dielectric substrates in achieving a noteworthy up to 20 dB improvement in directivity.The emphasis is placed on showcasing the impact of these substrates in optimizing the antenna's performance.The novel 1D-EBG antenna, as proposed, exhibits an impressive 14 dBi gain enhancement in comparison to a conventional antenna lacking EBG.This remarkable improvement is coupled with an exemplary level of adaptation, affirming the efficacy of the designed antenna for practical applications.The study not only validates the proposed approach but also underscores the potential of 1D-EBG structures in significantly advancing the performance of antennas, particularly in the context of WiMax applications.