应用于WLAN/WiMAX的小型化三频带单极子天线设计  

Design of miniaturization and tri-band monopole antenna for WLAN/WiMAX applications

作　　者：刘庆 王世豪 颜锦奎[1] Liu Qing;Wang Shihao;Yan Jinkui(School of Communication&Information Engineering,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学通信与信息工程学院,上海200444

出　　处：《电子测量技术》2021年第11期120-124,共5页Electronic Measurement Technology

摘　　要：设计了一种应用于无线局域网络(WLAN)和全球微波互联接入(WiMAX)的新型紧凑型三频段单极子天线。基于传统单极子天线,通过调整天线结构即加载缝隙和添加枝节来产生3个谐振模态。天线印刷在相对介电常数为4.4的FR4介质板上并采用共面波导(CPW)方式进行馈电。其尺寸仅为25mm×18mm×1mm,在此小尺寸下天线能产生3个不同谐振频带,并可以完全覆盖WLAN(2.4~2.48GHz)、(5.55~5.825GHz)和WiMAX(3.4~3.6GHz)这3个频段。使用电磁仿真软件HFSS对天线进行设计和仿真,并对天线进行了进一步的加工和测量,且实测结果与仿真结果基本吻合。测试结果还表明天线具有良好的全向辐射性能,最大增益为3.8dBi,满足WLAN/WiMAX无线应用需求。We have proposed a novel printed antenna with characteristics of miniaturization and triple-band,which is expected to be employed in wireless local area networks(WLAN)and worldwide interoperability for microwave access(WiMAX).Based on a conventional monopole antenna,the proposed antenna can operate in three different resonant modes by loading branches and slots into the antenna body.The antenna body is printed on the FR4with relative permittivity of 4.4and the dimension of only 25mm×18mm×1mm,which is fed by CPW.With three distinct resonance modes,the impedance bandwidth of the designed antenna can fully cover three desired bands of WLAN(2.4~2.48GHz),(5.55~5.825GHz)and WiMAX(3.4~3.6GHz).The antenna was designed and simulated by HFSS and a corresponding experimental prototype has been fabricated and tested.Good agreement between the simulation and measurement is obtained,and measured results also presents that the antenna has good omnidirectional radiation with peak realized gain of 3.8dBi,which can meet the requirements of WLAN/WiMAX wireless application.

关 键 词：小体积 三频段 开槽 WLAN/WiMAX 

分 类 号：TN82[电子电信—信息与通信工程]