一种应用于WLAN/WiMAX的新颖的三分枝单极天线  

Novel monopole antenna with 3-branch structure for WLAN/WiMAX application

作　　者：袁海军[1] 马云辉[1] 

机构地区：[1]电子科技大学中山学院,广东中山528402

出　　处：《现代电子技术》2012年第19期79-81,共3页Modern Electronics Technique

基　　金：电子科技大学中山学院科研启动基金项目资助(408YKQ01)

摘　　要：提出了一种应用于WLAN/WiMAX的新颖的多分枝单极天线,天线有三个分枝,结构紧凑,其大小为26mm×24mm×1.6mm,加工出了天线并进行测试,测试结果表明天线具有良好的双波段工作特性,|S11|≤-10dB时对应中心频率2.47GHz和4.825GHz处带宽分别达4%和62.4%,覆盖WLAN的2.4/5.2/5.8GHz频段及WiMAX的3.5/5.5GHz频段,同时采用了接地板开槽技术以调整带宽,天线在上述频段有近似于全向辐射方向图。A design scheme of a novel multi-branch monopole antenna for WLAN/WiMAX application is presented in the paper. The proposed antenna with 3-branch is compact with a total size of 26 mm × 24 mm × 1.6 mm. A prototype is constructed and tested. The test results show good dual band operations with ｜S11｜ ≤-10 dB impedance bandwidth of 4% and 62.4% centered at 2.47 GHz and 4. 825 GHz respectively, which cover both the WALN bands in 2.4/5.2/5.8 GHz bands and the WiMAX 3.5/5.5 GHz bands. A new technique of using a slot in the ground plane has been employed to achieve the multiband performance of the antenna. The proposed antenna exhibits nearly omnidirectional radiation patterns for the bands.

关 键 词：单极子天线 双波段 WLAN/WiMAX 接地板开槽 

分 类 号：TN821.3[电子电信—信息与通信工程]