共面波导馈电印刷单极天线的频带阻断  

Band-Notch for CPW-Fed Printed Monopole Antenna

作　　者：延晓荣[1] 钟顺时[1] 陈旷达[1] 

机构地区：[1]上海大学通信与信息工程学院

出　　处：《应用科学学报》2007年第5期466-468,共3页Journal of Applied Sciences

基　　金：国家自然科学基金(60571053);上海市重点学科建设基金(T0102)资助项目

摘　　要：提出一种具有频带阻断特性的小型化渐变共面波导馈电矩形单极天线．通过在辐射贴片上开U形缝隙，来获得对于无线局域网（WLAN）频段的频带阻断，并详细分析了缝隙各参数对频带阻断特性的影响．分析表明，频带阻断特性可通过控制U形缝隙的位置来实现，而通过调整缝隙的长度和宽度可改变所阻断频带的位置．实验结果表明，所提出的天线实现了5．07～5．85GHz的阻带特性，且具有阻抗带宽达15：1的超宽带特性．A compact rectangular monopole antenna fed by a tapered coplanar waveguide （CPW） with a band-notch function is proposed. A U-shaped slot is cut in the radiation patch to obtain the band-notch function and its parameters studied in detail. It is shown that the band-notched function can be realized by controlling location of the U-shaped slot. The notched band can be changed by adjusting the length and the width of the slot. Experimental results show that the proposed antenna has a stop-band of 5.07 GHz to 5.85 GHz and a super-wideband characteristic, with impedance bandwidth reaching 15：1.

关 键 词：频带阻断 U形缝隙 矩形单极天线 渐变共面波导 超宽带 

分 类 号：TN82[电子电信—信息与通信工程]