Abstract
This paper focuses on the development of a rectangular patch antenna with varied ground plane sizes (i.e. short edge, double ground, triple ground) using a thin film graphene-coated patch on flame retardant-4 (FR-4) glass epoxy substrate which is designed to function at 2.45 GHz. Diffraction of radiation from the ground plane's edges occurs with finite ground planes, resulting in variations in radiation pattern, radiation conductance, and resonant frequency. The ripple in the primary pattern decreases as the size of the ground plane grows larger. Even though the ground patch is built of Perfect Electric Conductor (PEC), various parametric results demonstrate that graphene patch gives a lower reflection coefficient (S11) and VSWR, as well as superior gain and directivity, when compared to copper patch. As a result, graphene-coated patches could be an excellent substitute for copper conductive patches.
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