一种基于人工电磁超材料的宽带MIMO天线去耦方法  

A Novel Metamaterial-Based Wide Band Decoupling Method for MIMO Antenna

作　　者：万发雨[1] 李鹤鸣 于兵[1] 葛俊祥[1] WAN Fayu;LI Heming;YU Bing;GE Junxiang(School of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210089,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210089

出　　处：《电子器件》2018年第5期1110-1113,共4页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61601233;61750110535);国防预研项目(6140209050116ZK53001);江苏省自然科学基金项目(BK20150918);江苏省双创团队人才计划项目(SRCB201526);江苏省"信息与通信工程"优势学科项目

摘　　要：提出了一种新的基于人工电磁超材料的宽带MIMO(Multiple-Input Multiple-Output)天线的去耦方法,通过在两个天线单元之间周期性放置开口三角环形谐振器OTRR(Open Triangular Ring Resonator)来降低耦合度。多个不同谐振频率的OTRR有效地增强了去耦带宽,与未加载去耦结构的MIMO天线相比,在5.2 GHz频段,百分比带宽为5.74%,隔离度提高了9 d B以上。A novel metamaterial based decoupling method for MIMO antenna is proposed.The reduction of mutual coupling between two antenna elements is realized by using periodically arranged open triangular ring resonators(OTRRs).The decoupling bandwidth of interest is enhanced by multiple OTRRs with different resonator frequencies.Compared with the original MIMO antenna without decoupling,the isolation is improved more than 9 dB at 5.2 GHz with fraction bandwidth 5.74%.

关 键 词：宽带去耦方法 MIMO天线 开口三角谐振环 

分 类 号：TN821[电子电信—信息与通信工程]