Abstract
This article presents a novel approach to investigating a reconfigurable Dielectric Resonator antenna using Graphene Nano Ribbon (GNR) in the terahertz band. Two Elliptical shape DRAs are merged to realize High gain and radiation efficiency. The Roger-6010 is utilized to construct an Elliptical shape Dielectric Resonator (EDRA), and GNR structures are constructed on top of it to achieve reconfigurability. The radiation performance of projected EDRA is investigated in terms of 10 dB Impedance bandwidth, reflection coefficient, surface current, directivity, radiation efficiency, and gain in the frequency range from 0.55-to-0.75-THz. The proposed EDRA design has an impedance bandwidth of 15.64 %, a peak gain of 11.9dBi, peak directivity of 13.1dBi, and radiation efficiency of 97.3 %. Moreover, the reconfigurability nature is investigated by the chemical potential of the surface conductivity of graphene and then GNR-based EDRA radiation parameters. The projected EDRA is suitable for various applications in the THz band.
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