多频带陷波可重构的超宽带单极天线  

Design of Multiband Notch Reconfigurable UWB Monopole Antenna

作　　者：陈江瑜[1] 龚雪[1] 宋艳丽[1] 刘德兵[1] CHEN Jiang-yu;GONG Xue;SONG Yan-li;LIU De-bing(Engineering Training Center,Chengdu Aeronautic Polytechnic,Chengdu 610100,China)

机构地区：[1]成都航空职业技术学院工程实训中心,四川成都610100

出　　处：《通信电源技术》2020年第14期23-27,共5页Telecom Power Technology

摘　　要：提出了一种具有可重构双陷波紧凑型的微带单极子超宽带天线。通过在辐射贴片上刻蚀一个U形缝隙和半圆缝隙,天线能分别实现5.1~5.9 GHz和7.2~8 GHz的阻带特性。另外,在合适的位置加载两个二极管BAR50-02V对这两个二极管的通断进行切换,使天线具有单频带和多频带陷波切换的功能,有效抑制了无线通信系统中WLAN(5.15~5.825 GHz)和X频段卫星下行通信(7.25~7.75 GHz)的干扰。文中详细分析了天线的表面电流分布和传输线模型,目前该天线已经加工并且测量,具有较好的宽带匹配阻抗、带阻特性和良好的全向辐射方向图。This paper proposes a compact microstrip monopole ultra-wideband antenna with reconfigurable double notch.By etching a U-shaped slot and a semi-circular slot on the radiation patch,this antenna can achieve the notch band of 5.1~5.9 GHz and 7.2~8 GHz,respectively.In addition,by loading two diodes BAR50-02V in a suitable position,the antenna has the function of switching single-band and multi-band notches,suppressing the interference of WLAN(5.15~5.825 GHz)and X-band satellite downlink communication(7.25~7.75 GHz)in wireless communication systems effectively.This paper analyzes the surface current distribution and transmission line model of the antenna in detail.The antenna has been processed and measured.It has good broadband matching impedance,band stop characteristics and good omnidirectional radiation pattern.

关 键 词：单极子天线 超宽带天线 可重构天线 

分 类 号：TN8[电子电信—信息与通信工程]