一种用于WLAN/WiMAX的三频MIMO天线设计  

Design of A Tri-band MIMO Antenna for WLAN /WiMAX Operation

作　　者：阳松[1] 李彦良[1] 

机构地区：[1]西安电子科技大学理学院,陕西西安710071

出　　处：《电子科技》2013年第11期96-98,共3页Electronic Science and Technology

摘　　要：介绍了一种用于WLAN（2.45 GHz,5.15 ～5.85 GHz）和WiMAX（3.50 GHz）3个频段的MIMO天线.该天线包含两个呈直角放置的E型单极子,使其产生3条耦合路径以获得3频特性.两个天线元间放置一个由接地面上凸起的T型隔离单元,降低了天线元间的耦合.仿真结果表明,该天线在其3个工作频段内的回波损耗＜-10 dB,且在工作频带内可获得15 dB的隔离度.A tri-band printed diversity antenna for 2. 4/3.5/5.2 GHz WLAN/WiMAX operation is proposed. The antenna consists of two orthogonal E-shaped monopoles placed symmetrically with respect to a protruding T- shaped ground plane. The E-shaped monopole can lead to three resonant paths, which can achieve three frequency characteristics. And the antenna can has a highly deeoupled port for the use of T-shaped ground plane. The simula- tion result show that the antenna has good impedance matching with high isolation （S12 〈 - 15 dB in most of the band） for frequencies at the 2. 4 GHz, 3.5 GHz and 5.2 GHz WLAN bands.

关 键 词：三频天线 MIMO 去耦 

分 类 号：TN828.6[电子电信—信息与通信工程]