一种应用于5G毫米波的超宽带MIMO天线  

Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Applications

作　　者：常睿 高小强 孟庆雅 段俊萍 Chang Rui;Gao Xiaoqiang;Meng Qingya;Duan Junping(School of Instrument and Electronics,North University of China,Taiyuan 030051,China;Key Laboratory of Instrumentation Science&Dynamic Measurement of Ministry of Education,Taiyuan 030051,China;Hangzhou Huifeng Engineering Management Co.,Hangzhou 311300,China)

机构地区：[1]中北大学仪器与电子学院,太原035001 [2]仪器科学与动态测试教育部重点实验室,太原035001 [3]杭州汇丰工程管理有限公司,杭州311300

出　　处：《微纳电子技术》2024年第6期90-97,共8页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(52175555);国家自然科学基金创新群体资助项目(51821003);山西省基础研究计划资助项目(20210302123074);中北大学动态测量技术国家重点实验室基金(2023-SYSJJ-03)。

摘　　要：设计了一种紧凑型超宽带(UWB)多输入多输出(MIMO)天线。该天线采用共面波导(CPW)馈电,可工作于C、Ku、K和Ka频段。天线采用平面几何结构设计,天线单元尺寸为14 mm×19 mm,结构紧凑,通过正交旋转形成4端口MIMO天线,加载十字形解耦器以增加隔离度,实现了良好的分集性能。MIMO天线的尺寸为40 mm×40 mm,工作频率为5~39 GHz,相对带宽约为154.5%,天线单元之间的隔离度<-19 dB,包络相关系数<0.05,分集增益>9.99 dB,测试和仿真结果一致。天线辐射性能良好且结构简单紧凑,可以很好地应用于5G毫米波无线通信系统中。A compact ultra-wideband(UWB)multiple-input multiple-output(MIMO)antenna was designed.The antenna is fed by a coplanar waveguide(CPW)and can operate in C,Ku,K and Ka bands.The antenna was designed in planar geometry with a compact unit size of 14 mm×19 mm.Cells were rotated orthogonally to form a 4-port MIMO antenna,loading a cross-shaped decoupler to increase isolation for good diversity performance.The size of the MIMO antenna is 40 mm×40 mm,the operating frequency is 5-39 GHz,the fractional bandwidth is about 154.5%,the isolation between antenna units is<-19 dB,the envelope correlation coefficient is<0.05,and the diversity gain is>9.99 dB.The measurment results are consistent with the simulation results.The antenna with good radiation performance has simple and compact structure,which can be well applied in 5G millimeter-wave wireless communication systems.

关 键 词：超宽带(UWB) 多输入多输出(MIMO) 十字形解耦器 高隔离度 共面波导(CPW) 

分 类 号：TN82[电子电信—信息与通信工程]