一种适用于移动通信的多极化天线  

Multi-polarization Antenna for Mobile Communication

作　　者：刘宗全[1] 钱祖平[2] 韩振平[1] 倪为民[3] 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系 [3]解放军理工大学通信工程学院训练部

出　　处：《军事通信技术》2011年第4期49-52,共4页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(60872046)

摘　　要：为满足移动通信系统极化复用的需求,文章设计了一种新型多极化天线。该天线有两个独立端口,分别工作在圆极化和线极化,可以接收空间三个互相正交的电场分量。实测结果表明,线极化和圆极化端口回波损耗S_(11)小于-10 dB的工作频带分别为1.69 GHz～1.84 GHz和1.66 GHz～2.32GHz,圆极化轴比(AR)小于3dB的工作频带为1.77 GHz～1.97 GHz,端口间隔离度均在-15 dB以下,满足了移动通信系统天线设计小型化的要求。To meet the polarization multiplexing demand of the mobile communication system, a new multi-polarization antenna was designed.The antenna contains two independent ports working with linear and circular polarization respectively,so that it can receive three orthogonal components of electric field in space.The measured results show that the impedance bandwidth whose S_（11） is less than -10 dB is 1.69 GHz～l.84 GHz and 1.66 GHz～2.32 GHz for linear-polarization and circular-polarization ports respectively.The bandwidth for AR3 dB is 1.77 GHz～1.97 GHz.The isolation between the two ports is below -15 dB.The antenna can meet the miniaturization demand of the mobile communication system antenna design.

关 键 词：天线 移动通信 圆极化 多极化 

分 类 号：TN82[电子电信—信息与通信工程]