应用于WLAN/WIMAX的宽频带单极子天线  

Broadband Monopole Antenna Applied to WLAN/WIMAX

作　　者：刘敏[1] 张斌珍[1] 段俊萍[1] 王颖 LIU Min ZHANG Binzhen DUAN Junping WANG Ying(Key Laboratory of Instrumentation Science ＆ Dynamic Measurement（North University of China）, Ministry of Education, Taiyuan 030051, China)

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《测试技术学报》2017年第5期410-415,共6页Journal of Test and Measurement Technology

基　　金：国家自然基金资助项目(51475438;61401405);山西省人社厅留学资助项目(20150603ZX);山西省自然科学基金资助项目(2014011021-4);联合基金重点支持资助项目(U1637212);山西省回国留学人员科研资助项目(2014-005)

摘　　要：针对应用于WLAN/WIMAX的双频和三频天线,通过构造6/9形辐射贴片和接地板开槽的方式,本文设计了一款结构简单的6/9形宽频带单极子天线.仿真结果表明:天线低频的相对带宽为14.8%(2.36~2.73 GHz),高频的相对带宽为52.8%(3.463~5.944 GHz).天线可同时接受WLAN(2.5/5.2/5.8GHz)和WIMAX(3.5/5.5GHz)等多个频率.在整个工作频带内天线的电压驻波比小于2.实测结果表明,加工的天线低频的谐振频率为2.58GHz,工作带宽为2.33~2.9GHz,相对带宽为22.1%(是仿真天线的1.46倍);高频的谐振频率为4.705GHz,工作带宽为3.45~5.96GHz,相对带宽为53.4%(是仿真天线的1.06倍),加工的天线比仿真模型的频段更宽.实现了一个结构简单且易于加工的天线设计,可以很好地接受WLAN/WIMAX的多个频率,且有较好的辐射特性,提高了天线的性能.For dual-frequency and tri-frequency antennas applied to WLAN/WIMAX,by constructing a6/9 radiation patch and sloting the ground plane,this paper designs a simple 6/9 broadband monopole antenna.Simulation results show that the relative bandwidth of low frequency of antenna is 14.8%（2.36~2.73 GHz）,and the relative bandwidth of high frequency of antenna is 52.8%（3.463~5.944 GHz）.Antenna can simultaneously accept multiple frequencies of WLAN（2.5/5.2/5.8 GHz）and WIMAX（3.5/5.5 GHz）.The voltage standing ratio of the antenna is less than 2 in the whole working band.The measured results show that the low-frequency resonant frequency of the designed antenna is2.58 GHz,the working bandwidth is 2.33~2.9 GHz,and the relative bandwidth is 22.1%（which is 1.46 times wider than the simulation antenna）,the high-frequency resonant frequency is 4.705 GHz,the working bandwidth is 3.45~5.96 GHz,and the relative bandwidth is 53.4%（which is 1.06 times wider than the simulation antenna）.The designed antenna is wider than the frequency band of the simulation model.An antenna with simple structure and easy processing can well accept multiple frequencies of WLAN/WIMAX and have good radiation characteristics,the method of this paper improve the antenna performance.

关 键 词：WLAN/WIMAX 宽频带 单极子天线 微带馈电 缝隙天线 

分 类 号：TN822.8[电子电信—信息与通信工程]