具有三阻带特性的新型平面超宽带天线研究  

Study of a novel compact CPW-fed triple band-notched UWB antenna

作　　者：石亚伟[1] 陈孟刚[1] 刘东卓[1] 

机构地区：[1]西南大学电子信息工程学院,重庆400715

出　　处：《电子元件与材料》2013年第4期43-45,共3页Electronic Components And Materials

基　　金：中央高校基本科研业务费资助项目(No.XDJK2012C070)

摘　　要：设计了一款具有三阻带特性的紧凑型超宽带天线。该天线采用共面波导结构进行馈电且能覆盖3．05～11．05GHz的频率范围。通过在地表面加载两个对称的L形槽可以滤除WiMAX和卫星通信系统对超宽带系统的干扰．同时5．15-5．25GHz和5．725-5．825GHz的WLAN系统对超宽带系统的干扰分别被加载在辐射贴片上的倒C形和馈线上的倒U形槽滤除。天线经过设计，优化和制作，并对其进行了测试。测试结果表明，该天线尺寸为23mm-30mm，其在3．05～11．05GHz内VSWR小于2，并在3．30～4．16，5．0～5．4和5．6～6．0GHz处形成了三个阻带。A compact ultra-wide band （UWB） antenna with triple band-notched was designed. The antenna was fed by coplanar waveguide（CPW）, of which the working band was 3.05--11.05 GHz. The interferences of WiMAX and satellite communication systems were filtered by etching two symmetrical L-shaped slots on the ground, while bands of 5.15-5.25 GHz and 5.725--5.825 GHz for WLAN system were also rejected by the inverted C-shaped slot in the patch and the inverted U-shaped slot in the feeder line. The antenna was designed, optimized, fabricated and measured. The results illustrate that the antenna has a small size of 23 mm×30 mm, and its VSWR is less than 2 at 3.05-- 11.05 GHz and three notched-bands are obtained at 3.30--4.16, 5.0--5.4 and 5.6--6.0 GHz, respectively.

关 键 词：超宽带天线 共面波导馈电 三阻带 VSWR 干扰 通讯 

分 类 号：TM277[一般工业技术—材料科学与工程]