Analysis of Graphene Pythagoras Tree Fractal Antenna with Thin SiO₂ Substrate in Terahertz Regime

Abstract The Pythagoras Tree Fractal patch is considered on a SiO 2 substrate thickness of 1.5 µm to radiate at four frequencies 4.975THz, 5.38THz, 6.73THz, and 7.61THz with Voltage Standing Wave Ratio (VSWR) ≤ 2. This very creative fractal design multiband THz antenna, based thin graphene layer, the study proved value in terms high radiation efficiency gain, level current research we made comparison where has evidently huge potential regarding applicability for telecommunication technology terahertz regime. demand high-performance (THz) antennas increased significantly recent years due their applications various fields such as medical imaging, security screening, wireless communications. In this paper, authors present an analysis (GPTF) antenna SiO2 GPTF designed using geometry approach, which provides multiple resonant enhances overall efficiency. used reduce losses improve performance antenna. use Finite-Difference Time-Domain (FDTD) software simulate proposed results show that exhibits low return loss, wide bandwidth, making it promising candidate applications.