基于不均匀超介质的宽带高增益天线研究  

Study of a broadband and high-gain antenna based on non-uniform metamaterial

作　　者：曹卫平[1] 彭黎黎[1] 李思敏[1] 宁丹[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《电子元件与材料》2012年第5期50-52,70,共4页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.61071018)

摘　　要：提出了一种由双层不均匀频率选择性表面(FSS)结构组成的领结型高增益天线,对其进行了仿真分析。结果显示该天线在不加外匹配网络情况下,|S11|≤–6 dB的阻抗带宽可达到72%,同时有很好的辐射方向图。与均匀频率选择性表面组成的天线相比较,该不均匀性天线带宽为均匀频率选择性表面组成的天线的1.5倍,并且仍然保持低轮廓。这种特性适用于点对点弱信号通信。A high gain bowtie antenna consisting of double layers non-uniform frequency selective surface（FSS） was proposed and analyzed by simulation.Results show that 72% of the impedance bandwidth of the antenna for ｜S11｜≤-6 dB can be obtained without additional matching network,and the well-behaved radiation patterns are displayed.Compared with the uniform one,the bandwidth of the antenna increases 1.5 times,which keeps a low profile.It is suitable to use in point-to-point weak signal communication.

关 键 词：领结型天线 不均匀频率选择性表面 高增益 匹配网络 

分 类 号：TN82[电子电信—信息与通信工程]