Design and Simulation of a Graphene-Based Dual-Band Nano Antenna for Terahertz Applications

Abstract

This paper presents a comprehensive study on the design and analysis of graphene-based nano rectangular patch antennas with slots for terahertz applications. The investigation focuses on the effect of graphene material and slots on the performance of microstrip edge feed antennas. The numerical modeling of the antennas is carried out using HFSS simulation software. This study highlights the potential of graphene as a promising material for high-frequency antenna applications in the terahertz regime. By incorporating slots in the radiating element, significant improvements are achieved in various antenna parameters, including resonance frequency, gain, radiation efficiency, and directionality. Simulation results demonstrate that the addition of a slot on the radiating element leads to a miniaturization effect, resulting in a decrease in resonance frequency from 2.86 THz to 2.82 THz and the emergence of a new resonance frequency at 5.03 THz. The graphene-based patch antenna with slots exhibits higher gain 2.78 dB and improved radiation efficiency compared to the antenna without slots. The radiation patterns of the proposed antennas show a more directional behavior, contributing to reduced reflection losses. This investigation contributes to the advancement of antenna design using graphene-based materials and demonstrate the potential of slots in improving the performance of microstrip edge feed antennas.