A High-Capacity 4-Port MIMO Antenna for 5G and 6G Devices

Abstract

A fundamental supporting technology for wireless systems of communication is the multi-input multi-output (MIMO) antenna. In this article, we propose a newly developed quad-element MIMO antenna design for a variety of modern applications such as mobile phones, the Internet of Things (IoT), and telecommunication technologies. So, we presented the design of this antenna in two stages. The first stage was to design the antenna simulation using CST Studio Suite. The second stage is actually manufacturing the antenna. This antenna serves all sophisticated wireless technology applications since it operates at many frequencies ranging from 1 to 20 GHz. This antenna is characterized by its small size, so its dimensions are 28×28×1.6 mm3. The antenna’s performance is good based on CST Studio Suite results and manufacturing in engineering laboratories since the antenna’s reflection coefficients resonate at six major frequencies at 4, 8, 12, 14, 18, and 20 GHz. In addition, the isolation value between elements in the MIMO configuration is ⩽ -35 dB, and the highest gain is 10 dB. While the overall efficiency is between 75% to 100%. Finally, the results indicate that the simulated antenna design matches perfectly with the real antenna manufactured due to the precision manufacturing strategy described in this article.