一种新型3带阻超宽带单极子天线  

A Novel UWB Monopole Antenna with Three Notch-bands

作　　者：张强[1] 金杰[1] 刘青爽[1,2] 李茜 张如彬[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]华北理工大学信息工程学院,河北唐山063009

出　　处：《南开大学学报（自然科学版）》2017年第4期57-62,共6页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(61571320)

摘　　要：为了避免如WiMAX,C波段和WLAN窄带通信系统对超宽带通信系统的影响,设计了1款新颖的具有3带阻特性的超宽带单极子天线.天线采用矩形贴片作为辐射单元,通过在贴片上分别制作倒I形、倒U形和十字形开槽结构来实现3带阻特性.天线结构紧凑,尺寸仅为20×25×1.6 mm^3.建立天线模型,并对其进行仿真和优化.研究表明,天线带宽为3.1-10.81 GHz,且在WiMAX、C波段和WLAN等3个频段产生良好的带阻特性,且在工作频段内有良好的辐射方向特性.In order to avoid the interference of narrow-band communication systems,such as WiMAX,C band,and WLAN wireless application,to the UWB （Ultra-wideband） communication systems,a novel UWB monopole antenna with three notch-bands is proposed.The three band-notched characteristics are achieved by employing a reversed I-shaped,a reversed U-shaped and a cross-shaped slot structure on the rectangular radiating patch.The proposed antenna has a compact volume of 20×25×1.6mm^3.A prototype was designed,simulated,and optimized.Researches show that this antenna has the bandwidth of 3.1-10.81 GHz with the nice notched bands for WiMAX,C band,and WLAN,and nice radiation characteristics during its operating frequency band.

关 键 词：超宽带 带阻特性 单极子天线 开槽结构 

分 类 号：TN82[电子电信—信息与通信工程]