In the twenty-first century, graphene is widely used in wireless communication, especially in terahertz applications because of its amazing electrical, mechanical, and optical properties. This paper presents a graphene-based microstrip patch antenna at 0.72 THz resonant frequency for wireless communication. The proposed antenna shows 37.50% impedance bandwidth ranging from 0.53 to 0.84 THz at the center frequency of 0.72 THz. The result is demonstrated in terms of return loss (s11 < − 10 dB), voltage standing wave ratio (VSWR), input impedance, E-plane, and H-plane radiation pattern. The designing and simulation are performed using a full-wave electromagnetic simulator CST microwave studio based on the finite difference time domain method. The simulation output shows a minimal return loss − 59.97 dB, VSWR 1.007, and good radiation pattern at 0.72 THz resonant frequency, which would be an excellent candidate for future wireless communication as well as medical imaging, homeland defense system, explosive detection, and material characterization application.

在二十一世纪，石墨烯因其惊人的电，机械和光学特性而被广泛用于无线通信，尤其是太赫兹应用。本文提出了一种基于石墨烯的微带贴片天线，其谐振频率为0.72 THz，用于无线通信。所提出的天线在0.72 THz的中心频率下显示了从0.53到0.84 THz的37.50％阻抗带宽。结果以回波损耗（s11 <-10 dB），电压驻波比（VSWR），输入阻抗，E平面和H平面辐射方向图证明。使用基于时域有限差分法的全波电磁模拟器CST微波工作室进行设计和仿真。模拟输出显示出最小的回波损耗-59.97 dB，VSWR 1.007，并且在0处具有良好的辐射方向图。