共面波导馈电的分形缝隙宽带天线

一种共面波导馈电的分形缝隙宽带天线

内容简介：结合共面波导馈电和分形天线的优点,设计了一种共面波导馈电的正六边形分形缝隙天线.选择正六边形分形缝隙结构,采用渐变的共面波导馈电,不仅拓宽了阻抗带宽,而且实现了天线的小型化.通过计算测量,对天线的阻抗特性、增益和方向图进行了研究.实验表明,此分形缝隙天线的阻抗带宽达到89%,并且在整个工作频段内具有良好的辐射方向特性.

Abstract：As to the advantages of CPW(coplanar wave-guide)and fractal antenna,a hexagon slot antenna is designed.which is excited by CPW.The hexagon fractional slot structure is chosen,the gradually changed CPW feed is adopted.Not only the bandwidth of matched impedance is expanded,but also the antenna's miniaturization is realized.Through numerical simulation,a research is taken on the impedance,gain,radiation plot of the antenna.The experiment results show that the impedance bandwidth reaches 89%,and appear good radiation propeaies in the whole working bandwidth.

作者：任帅, 张广求, 吴启铎,

关键词：共面波导, 分形天线, 宽带, 小型化,