一种用于5G通信的紧凑型双元件MIMO天线。

A compact two elements MIMO antenna for 5G communication.

作者信息

Ahmad Ashfaq, Choi Dong-You, Ullah Sadiq

机构信息

Communication and Wave Propagation Laboratory, Department of Information and Communication Engineering, Chosun University, Gwangju, 61452, South Korea.

Department of Telecommunication Engineering, University of Engineering and Technology, Mardan, 23200, Pakistan.

出版信息

Sci Rep. 2022 Mar 4;12(1):3608. doi: 10.1038/s41598-022-07579-5.

DOI:10.1038/s41598-022-07579-5

PMID:35246591

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8897432/

Abstract

This study presents a simple, miniaturized, and low-profile multiple-input multiple-output (MIMO) antenna operating at 29 GHz with reduced mutual coupling between the antenna elements for futuristic 5G communication. The proposed design employs two radiating elements with slits in the radiators to produce high isolation among the antenna radiators. The MIMO antenna maintains a compact structure of 11.4 × 5.3 mm, which is the smallest size compared to previous 5G antennas. Roger's 4350B laminate was employed as a substrate material. At 29 GHz, low mutual coupling of - 36 dB, low envelope correlation coefficient (ECC < 0.001), and high diversity gain (DG > 9.8 dB) are achieved. The proposed design is examined in terms of the S-parameters, diversity gain, radiation pattern, and envelope correlation. Compared to the straight antenna element, an improvement of - 20 dB is observed in the isolation for both the simulated and measured results.

摘要

本研究提出了一种简单、小型化且低剖面的多输入多输出（MIMO）天线，工作在29GHz，天线元件之间的互耦降低，适用于未来的5G通信。所提出的设计采用两个在辐射器上带有缝隙的辐射元件，以在天线辐射器之间产生高隔离度。该MIMO天线保持11.4×5.3mm的紧凑结构，与之前的5G天线相比尺寸最小。采用罗杰斯4350B层压板作为基板材料。在29GHz时，实现了-36dB的低互耦、低包络相关系数（ECC<0.001）和高分集增益（DG>9.8dB）。从S参数、分集增益、辐射方向图和包络相关性方面对所提出的设计进行了研究。与直天线元件相比，模拟和测量结果在隔离度方面均观察到了-20dB的改善。