A Wideband Omnidirectional Planar Microstrip Antenna For WLAN Application Using Graphene

Mohd Redzuan, Shakil Ahmad (2015) A Wideband Omnidirectional Planar Microstrip Antenna For WLAN Application Using Graphene. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Antenna is a very important device in telecommunication field used to transmit or receive radio frequency signal. Normally most of the antenna is built up of copper because it is suitable material for it. Recently graphene is claimed as a promising element to replace the copper. Thus, in this project graphene is use as a patch antenna in designing wideband omnidirectional planar microstrip antenna with the frequency range of 2.4GHz for WLAN application. This antenna is designed using graphene and copper as patches, and FR4 as dielectric (∈r 4.30). Two different thicknesses of graphene were assessed, that are 0.035mm and 0.355nm whereas the thickness of copper is 0.035mm. The antenna is simulated by using CST Studio Suite 2011 software. Parameters that have been investigated are bandwidth, return loss, directivity, radiation pattern and gain of antenna. The highest bandwidth, directivity, return loss and gain are 0.6279 GHz, 7.814 dBi, -24.964 and 7.814 dB respectively which is obtained from the analysis of 1x4 patch antenna. From this project, the best optimization design is using 1x6 patch antenna. Graphene material with 0.355nm thickness shows a better performance compare to copper as the patch material have also been proved in this thesis.

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