用于MIMO系统双极化基站端多天线的设计  

Design of dual-polarization base station multi-antenna for MIMO

作　　者：王永巍[1] 姜兴[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《电子技术应用》2010年第10期95-98,共4页Application of Electronic Technique

基　　金：973计划前期研究专项(CB317109)

摘　　要：利用缝隙耦合技术和双线馈电技术设计了一种高增益、高隔离、双极化的H型缝隙耦合天线单元,在此基础上设计了多天线系统。通过实测分析不同阵元间距对MIMO基站多天线互耦的影响,确定了最佳阵元间距,测试了此间距在频率2.14 GHz处远场方向图,实测水平极化端口处最大增益为14.89 dB,垂直极化端口处最大增益为14.78 dB,与仿真结果吻合较好。其结构简单,成本低廉,容易制作,满足MIMO基站多天线系统的需求。A high-gain, high isolation, dual-polarized coupling of H-type slot antenna is designed by using coupling slot technology and two-gap-coupled feed technology. Based on this the system of multi-antenna is designed. Through the analysis and test that different array element spacing influence the mutual coupled multi-antenna of MIMO base station, it determines the best array element spacing, tests the far-field pattern in frequency 2.14 GHz at the distance, and measures horizontal polarization port at maximum gain to 14.89 dB,vertical polarization port at maximum gain of 14.78 dB, and the simulation results coincide well with the measured data. The structure is simple, low cost and easy produced, it meets the requirements of MIMO base station multi-antenna.

关 键 词：MIMO基站端 双极化 天线互耦 缝隙耦合 

分 类 号：TN82[电子电信—信息与通信工程]