一种适用于MIMO移动端多天线单元的分析与设计  

Designing of a MIMO multi-antenna unit applicable to mobile terminal

作　　者：侯轶[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：《桂林电子科技大学学报》2010年第2期101-104,共4页Journal of Guilin University of Electronic Technology

基　　金：973计划前期研究专项(CB317109)

摘　　要：通过对微带天线不同馈电形式下的多天线单元进行比较,采用缝隙耦合馈电的模型,利用仿真软件对其进行仿真优化并加工出实物。经实测结果表明：水平极化端口和垂直极化端口在设计频段2.11~2.17 GHz内电压驻波比（VSWR）〈1.5,两个极化端口隔离度〈-40 dB,实测与仿真结果基本一致。该天线平面结构适用于MIMO移动端多天线,可满足MIMO技术通信链路两端使用多天线的需求。Firstly,the performance of antenna was analyzed under different microtrip feed methods.Then,an antenna using couple slot fed was designed,simulated and optimized.The measurement results reported that the VSWR of horizontal polarization channels and vertical polarization channels are 1.5 from 2.11~2.17 GHz;the isolation is -40 dB between the two ports.The measurement results and the simulation data were consistent.The antenna designed herein has the characteristics of plane structure,easy production and low cost,which can satisfy the demand of MIMO technology at both ends of the communication link.

关 键 词：双极化 双边侧馈 同轴背馈 缝隙耦合 

分 类 号：TN82[电子电信—信息与通信工程]