一种高隔离度的微带双频MIMO天线设计  

Design of a Dual-band Microstrip MIMO Antenna with High Isolation

作　　者：陈晓锋 周殊伦 文蓓怡 曹捷 韩如冰 CHEN Xiao-feng;ZHOU Shu-lun;WEN Bei-yi;CAO Jie;HAN Ru-bing(Shanghai Radio Equipment Research Institute,Shanghai 201109,China;Shanghai Aerospace Electronic Technology Institute,Shanghai 201109,China)

机构地区：[1]上海无线电设备研究所,上海201109 [2]上海航天电子技术研究所,上海201109

出　　处：《制导与引信》2020年第3期41-45,共5页Guidance & Fuze

摘　　要：针对无线通信系统对高通信速率、高通信容量的需求,设计了一种高隔离度的双频多输入多输出(Multiple Input Multiple Output,MIMO)天线。该MIMO天线采用微带形式,选用弯折型单极子天线作为高频谐振单元,通过增加背面谐振单元引入低频谐振,实现了2.4 GHz和5 GHz双频工作,并采用在地板上开槽和在背面悬置金属线的方法解决了天线单元之间的互耦问题。仿真结果表明,天践的工作带宽、隔离度、增益、不圆度等参数均满足设计要求。In order to meet the requirements of high communication rate and high capacityin wireless communication system,a dualband multipleinput multiple output(MIMO)antenna with high isolation is designed.The MIMO antenna adopts the microstrip form and the bent monopole antenna is used as the high frequency resonant unit.By adding the backside resonant unit to introduce the low frequency resonance the 2.4 GHz and 5 GHz dual-frequency operation is realized.Meanwhile,the mutual coupling between the antenna elements is solved by sloting on the floor and mounting metal wire on the backside.The simulation results show that the antenna parameters such as the bandwidth,isolation,gain and out of roundness meet the design requirements.

关 键 词：高隔离度 双频 多输入多输出天线 

分 类 号：TN82[电子电信—信息与通信工程]