应用于5G的三频MIMO天线设计  

Design of Tri-Band MIMO Antenna for 5G Applications

作　　者：周籽怡 杨志鹏 杜成珠 ZHOU Ziyi;YANG Zhipeng;DU Chengzhu(College of Electronics and Information Engineering,Shanghai University of Electric Power,Shanghai 200082,China;State Grid Shanghai Electric Power Company Jiading Power Supply Company,Shanghai 201800,China)

机构地区：[1]上海电力大学电子与信息工程学院,上海200082 [2]国网上海市电力公司嘉定供电公司,上海201800

出　　处：《压电与声光》2025年第1期52-58,共7页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(62202286)。

摘　　要：随着5G通信技术的商用和卫星通信的快速发展及技术创新,设计了一种使用“X”型隔离结构的三频二元多输入多输出(MIMO)天线。天线由两个倒置且平行放置的单元辐射贴片组成,并通过在其正面、背面加载隔离枝节来提高天线的隔离度,同时在天线背面采用开槽技术来改善天线的带宽。天线整体尺寸仅有37 mm×25 mm×0.8 mm,实测工作频段为4.3~5.8 GHz、8.02~9.3 GHz和12.2~14.8 GHz,在工作范围内端口隔离度均优于23 dB,全频段包络相关系数(ECC)<0.03,分集增益(DG)>9.99 dB,分集性能良好,满足MIMO天线传输性能的要求。研究表明,该天线适用于5G和卫星通信系统。Within a context of commercialization of 5G communication technology and rapid development of satellite communication and technological innovation,this paper presents a three-band binary MIMO antenna based on an“X”-shaped isolation structure.The antenna consists of two inverted,parallel unit radiating patches,with isolation enhanced by loading isolation branches on both the front and back sides.A slotting technique was applied on the back of the antenna to improve bandwidth.The overall dimensions of the antenna are 37 mm×25 mm×0.8 mm,and its measured operating bands are 4.3-5.8 GHz,8.02-9.3 GHz,and 12.2-14.8 GHz.The port isolation exceeds 23 dB within the operating range,while the full-band envelope correlation coefficient(ECC)remains below 0.03,and the diversity gain(DG)exceeds 9.99 dB,indicating excellent diversity performance.These results demonstrate that the antenna meets MIMO-antenna transmission performance requirements and is well-suited for 5G and satellite communication systems.

关 键 词：5G 卫星通信 多频天线 多输入多输出(MIMO) 高隔离度 “X”型隔离枝节 

分 类 号：TN822[电子电信—信息与通信工程]