A Compact Planar Dual-Band Multiple-Input and Multiple-Output Antenna with High Isolation for 5G and 4G Applications.

Rong Yang,Zhizhou Chen,Shuqi Xi,Gui Liu,Xiaohang Wang,Qibo Cai

doi:10.3390/mi12050544

Abstract

Featured Application The proposed dual-band MIMO antenna can be a good candidate for 5G and 4G applications. In this paper, a compact planar dual-band multiple-input and multiple-output (MIMO) antenna with high isolation is presented to satisfy the increasing requirements of wireless communication. The proposed antenna array consists of two identical radiating elements which are fed through micro-strip lines. A rectangular micro-strip stub with defected ground plane is employed to achieve a high isolation which is less than −15 dB between the two antenna elements. The size of the entire MIMO antenna is 32 × 32 × 1.59 mm3, which is printed on an FR4 substrate. The proposed MIMO antenna is optimized to operate in 2.36–2.59 GHz and 3.17–3.77 GHz bands, which can cover the fifth-generation (5G) n7 (2.5–2.57 GHz) and the fourth-generation (4G) Long Term Evolution (LTE) band 42 (3.4–3.6 GHz). The proposed MIMO antenna is feasible for the 5G and 4G applications.

Highlights

With the coming of the 5G era, it is of the utmost importance to greatly improve largecapacity data transmission and link reliability of wireless communication systems
multiple-input and multiple-output (MIMO) antennas have been widely applied in wireless communication systems
The measured results show that the presented antenna can cover dual-band MIMO antenna is 32 × 32 × 1.59 mm

Summary

Introduction

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. The measured results show that the presented antenna can cover dual-band MIMO antenna is 32 × 32 × 1.59 mm. Both 4G (3.4–3.6 GHz) and 5G (2.5–2.57 GHz) spectrums. The. The geometry of loss the tanδ proposed dual-band antenna shown in Figure manufactured antenna is shown in Figure proposed antenna structure consists of2.two identical radiating elements which are fed Themicro-strip two identical antenna on two adjacent sides of the sub-relative through lines. Current density distributions of the presented antenna in different frequency bands are. The current density distributions of the presented antenna in different frequency bands shown in.

3.3.Results

Simulated

3.47 GHz antenna

Conclusions