Design and Simulation of a High-Gain Terahertz Antenna for 6G IoT Application

This paper presents a new terahertz antenna for 6G IoT applications, highlighting significant advancements in high-frequency communication. Utilizing a Rogers RO3210 substrate with excellent electrical and thermal properties (relative permittivity of 10.8, low electric loss tangent of 0.0027, and thermal conductivity of 0.81 W / K / m), the antenna dimensions (800 × 650 × 100 μ m3) are optimized for the desired resonant frequencies, radiation patterns, and impedance essential for 6G IoT. Simulation results show a return loss (S 11) of -25.79 dB at 0.325 THz, indicating excellent impedance matching and minimal signal reflection, which is essential for efficient signal transmission and reception. The 3D and far-field radiation patterns at 0.325 THz demonstrate the antenna's ability to radiate energy effectively in all directions and over long distances. Additionally, the antenna has a simulated directivity gain of 6.34 dBi at 0.325 THz, allowing it to focus energy in specific directions and support long-range communication with minimal signal loss. These features fulfill the advanced requirements of 6G IoT, such as enhanced mobile broadband, large-scale machine communication, and ultra-reliable low-latency communication. The proposed antenna is anticipated to play a vital role in the evolution of 6G IoT technology, providing robust, high-speed, and reliable communication solutions.