Abstract
In this article, the design of a microstrip leaf-shaped patch antenna based on a semi-metal substance called graphene is studied. Configuration of the antenna is considered in a method that each of the various sections of the antenna dependent on chemical potential variations can make available a specific radiation status for the far-field of the antenna. Basic aspect of the present plan is to regulate the antenna polarization only by variation of the Fermi energy quantity of its graphene layer. In a way as if it's main physical construction stays unchanged. With this idea, it is achieved the possibility of achieving an antenna with an advantageous matching range in the limit of 0.3 through 1 THz, which can control its polarization in three modes (RHCP, LHCP & LP) for the range of 0.5–0.7 THz with the axial ratio less than 3 dB. Remarkably, the physical structure of the antenna produced it feasible for us to attain circular polarization by attaching leaf-shaped layered patches at its edges.
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