一种新型的具有带阻特性的超宽带天线  

A Novel UWB Micro-Strip Antenna with Band-Notched Characteristics

作　　者：吴毅强[1] 张平平[1] 胡少文[1] 邓淼[1] 周辉林[1] 

机构地区：[1]南昌大学电子信息工程系,南昌330031

出　　处：《电子器件》2014年第1期1-4,共4页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61062009)

摘　　要：设计制作了一种新型的具有带阻特性的超宽带微带天线。采用在六边形辐射贴片上开一对称的U形槽,实现了天线的带阻特性。仿真结果表明,可以方便地通过改变U形槽的宽度来改变阻带的位置和宽度。可实现天线频带宽度(S11≤-10 dB)为3.015 GHz^13.270 GHz,相对带宽达126%,并能精确阻隔WLAN(5.725 GHz^5.85 GHz)频率段,实验结果表明该天线适用于超宽带系统的应用。A novel UWB micro-strip antenna with band-notched characteristics was designed and manufactured. Using a hexagons patch as the radiation element and cutting a pair of symmetrical U-shaped slot,the band-notched characteristics of the antenna was realized. Simulated results show that the width of the U-shaped slot determined the center frequency and the bandwidth of the notched band. With the presented design,the bandwidth（return loss≤-10 dB）starts from 3. 015 GHz up to 13. 270 GHz that means a relative bandwidth of 126% and it effectively eliminates the 5. 725 GHz^5. 85 GHz WLAN range. Measured results confirm that the proposed antenna is suitable for UWB applications.

关 键 词：超宽带 U形槽 带阻功能 Ultra-wideband( UWB) 

分 类 号：TN92[电子电信—通信与信息系统]