一种小型化的高隔离度UWB-MIMO天线  

A miniaturized high isolation UWB-MIMO antenna

作　　者：高明明[1,2] 宋杨 南敬昌 李春晨[1] GAO Mingming;SONG Yang;NAN Jingchang;LI Chunchen(School of Electronics and Information Engineering,Liaoning Technical University,Huludao 125105,China;School of Information Science and Technology,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]辽宁工程技术大学电子与信息工程学院,葫芦岛125105 [2]大连海事大学信息科学技术学院,大连116026

出　　处：《电波科学学报》2022年第3期484-490,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金青年科学基金(61701211);国家自然科学基金(61971210);北京市科技计划项目(Z201100005820010);辽宁工程技术大学横向课题(21-2067)

摘　　要：提出了一种紧凑、高性能、形状新颖的具有高隔离度的超宽带多输入多输出(ultra-wideband multiple-input multiple-output,UWB-MIMO)天线.天线由两个圆形辐射元件组成,享有共同的类F形接地平面,尺寸为30 mm×18 mm.在天线的接地平面中引入类F形短截线,在MIMO天线元件之间产生高度隔离.所设计的UWB-MIMO天线具有极低耦合(S_(21)<−22 dB)、低包络相关系数(ECC<0.003)、高分集增益(DG>9.98 dB),适用于便携式通信设备.A compact,high performance,and novel-shaped ultra-wideband(UWB)multiple-input multiple-output(MIMO)antenna with low mutual coupling is presented in this paper.The proposed antenna consists of two circular radiating elements with shared ground plane with an area of 30 mm×18 mm.F-shape stubs are introduced in the shared ground plane of the proposed antenna to produce high isolation between the MIMO antenna elements.The designed MIMO antenna has very low mutual coupling(S_(21)<−22 dB),low envelope correlation coefficient(ECC<0.003),high diversity gain(DG>9.98 dB),which is suitable for UWB-MIMO system applications.

关 键 词：超宽带(UWB) 多输入多输出(MIMO)天线 小型化 高隔离度 总有效反射系数(TARC) 

分 类 号：TN822.8[电子电信—信息与通信工程]