一种双陷波超宽带马蹄形天线的设计  

Design of a Dual Band-Notched Ultra-Wideband Clevis-Shaped Antenna

作　　者：袁耿[1] 鄢泽洪[1] 李铂[1] 

机构地区：[1]西安电子科技大学天线与微波技术重点实验室,陕西西安710071

出　　处：《电子科技》2012年第10期58-59,63,共3页Electronic Science and Technology

摘　　要：提出了一种新型的带有3.4 GHz和5.5 GHz双陷波特性的超宽带天线。天线由马蹄形的辐射贴片和共面波导馈电的传输线组成。回波损耗<-10 dB的阻抗带宽是3.1～10.6 GHz,除了其中3.3～3.7 GHz的WiMAX和5.15～5.825 GHz的WLAN两个陷波频段。这些陷波的频段可以通过在天线的辐射贴片上增加长条裂缝和U型缝隙来保证。加工和测试的结果表明,天线有着良好的阻抗带宽和全向辐射方向图。A novel ultra-wideband（UWB） antenna with the 3.4/5.5 GHz dual band-notched characteristics is proposed.The antenna consists of a clevis-shaped radiating patch and a coplanar waveguide（CPW） transmission line.It yields an impedance bandwidth of 3.1~10.6 GHz with return loss S11-10 dB,except for the two subbands of 3.3~3.7 GHz for WiMAX and 5.15~5.825 GHz for WLAN.These notched subbands are obtained by etching two slits and a U-shaped slot on the radiating patch.The antenna was successfully fabricated and measured,showing broadband matched impedance and a nearly omnidirectional radiation pattern.

关 键 词：超宽带 双陷波特性 共面波导馈电 天线小型化 

分 类 号：TN822.8[电子电信—信息与通信工程]