A 12-Port MIMO Antenna System for 5G/WLAN Applications

Wenshi You; Zhonggen Wang; Wenyan Nie; Weidong Mu

doi:10.3390/mi14061196

A 12-Port MIMO Antenna System for 5G/WLAN Applications

Micromachines (Basel). 2023 Jun 5;14(6):1196. doi: 10.3390/mi14061196.

Authors

Wenshi You¹, Zhonggen Wang¹, Wenyan Nie², Weidong Mu¹

Affiliations

¹ School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China.
² School of Mechanical and Electrical Engineering, Huainan Normal University, Huainan 232001, China.

Abstract

In this paper, a 12-port MIMO antenna system for 5G/WLAN applications is proposed. The proposed antenna system consists of two types of antenna modules: an L-shaped antenna module covering the C-band (3.4-3.6 GHz) for 5G mobile applications and a folded monopole module for the 5G/WLAN mobile application band (4.5-5.9 GHz). Each two antennas form a pair, six pairs in total, forming a 12 × 12 MIMO antenna array, and the elements between the antenna pairs can achieve an isolation of 11 dB or more without additional decoupling structures. Experimental results show that the antenna can cover the 3.3-3.6 GHz and 4.5-5.9 GHz bands with an overall efficiency greater than 75% and an envelope correlation coefficient less than 0.04. Finally, the one-hand holding mode and two-hand holding mode are discussed to demonstrate their stability in practical applications, and the results show that they still exhibit good radiation and MIMO performance when operating in both modes.

Keywords: 5G; MIMO antenna; WLAN; mobile communication; slot antenna.

Grants and funding

This research was funded in part by the Anhui Provincial Natural Science Foundation under grant 2108085MF200 and the Natural Science Foundation of Anhui Provincial Education Department under grant 2022AH051583.