Terahertz Frequency High Gain Ultra-Wideband MIMO Antenna for Beyond 5G Applications

Abstract

For beyond 5G applications, THz antennas have been proposed and designed. Beyond 5G is a technology that is easily connected with users and networks with different means. To address this objective, achieving high bandwidth with maximum gain is crucial for enhancing performance. Therefore, this study employs a high-frequency range. The antenna design utilizes high frequency without incorporating materials such as graphene or gold. Instead, copper and Rogers are used for the patch and substrate, respectively. The array used in this study provides MIMO characteristics optimized for high-gain, ultra-wideband terahertz frequencies. The terahertz MIMO antennas employed include 2-element and 3-element arrays. The antenna designs were simulated using commercial software. The gain for 3-element arrays is 24.5 dBi, while for 2-element arrays, it is 22.1 dBi. Limited literature has been reviewed to understand the technology. Consequently, the bandwidth has been increased from 0.2 THz for 2-element arrays to 0.45 THz for 3-element arrays within the frequency range of 2 THz to 6 THz.