Tripe-band MIMO Antenna for 5G Mobile Terminals

Abstract

In this paper, a multiple input multiple output (MIMO) 4-antenna array is proposed and fabricated for 5G mobile terminal communication. The antenna array is composed of four triple-band antennas placed along the long edges on both sides of the terminal. It adopts a bent structure to achieve miniaturization and can cover the ISM (Industry Science Medicine) frequency band of 2370-to-2450MHz, and the 5G operating frequency bands of 3510-to-3610MHz and 4830-to-5080MHz allocated by the Ministry of Industry and Information Technology. The proposed antenna array achieves >40% total antenna efficiency, and > -15dB isolation between each two ports. The measurement results of the fabricated antenna array demonstrate in-line performance based on the simulation results, offering a feasible approach for 5G mobile terminal applications.