A tunable terahertz (THz) slotted monopole antenna is implemented with self-diplexing capability. The radiating arms of antenna are filled with the graphene strips. The variation in electrical parameters of graphene alters the surface current distribution in the radiating arms which results in tuning the antenna response through individual input ports. Antenna operates in frequency range 4.75–5.34 $THz$ and 5.57–6.76 $THz$ with the application of input at port-1 and 2, respectively which can further be tuned with the reported biasing schemes. The antenna structure utilizes the orthogonal radiating slots which provides high isolation more than 150 dB between the ports in compact antenna geometry. An electrical equivalent circuit is prepared to verify the antenna operation. In addition, antenna offers the peak gain 3.83 dBi at port-1 and 6.06 dBi at port-2 in the operating passband along with the efficiency of more than 80%. Antenna provides the compact geometry with tunable self-diplexing capability and can be suitable for future wireless applications requiring the simultaneous transmit and receive systems.

可调谐太赫兹 (THz) 开槽单极天线具有自双工能力。天线的辐射臂充满了石墨烯条。石墨烯电气参数的变化改变了辐射臂中的表面电流分布，从而导致通过各个输入端口调整天线响应。天线在 4.75–5.34 频率范围内工作$吨Hz$和 5.57–6.76 $吨Hz$分别在端口 1 和端口 2 应用输入，可以使用报告的偏置方案进一步调整。天线结构利用正交辐射槽，在紧凑的天线几何形状的端口之间提供超过 150 dB 的高隔离度。准备了一个等效电路来验证天线的操作。此外，天线在工作通带中端口 1 的峰值增益为 3.83 dBi，端口 2 的峰值增益为 6.06 dBi，效率超过 80%。天线提供具有可调自双工能力的紧凑几何形状，可适用于需要同步发射和接收系统的未来无线应用。