有限圆盘地面上套筒单极子天线  

On the sleeve monopole antennas located at the center of a circular dish

作　　者：郭景丽[1] 贺秀莲[1] 刘其中[1] 

机构地区：[1]西安电子科技大学天线与电磁散射研究所,陕西西安710071

出　　处：《西安电子科技大学学报》2004年第3期417-421,共5页Journal of Xidian University

基　　金：国家部委预研资助项目(410010202;401060302)

摘　　要：提出了一种分析有限尺寸圆盘地面上套筒单极子天线的新方法.采用粗圆柱线天线快速精确计算模型,选用正弦插值基函数,将圆盘地面和套筒作为一个整体进行矩量法分析计算,研究其驻波和辐射方向图特性.分析了一副工作在225～515MHz频段、电压驻波比小于3 0的实用套筒天线,其数值计算结果与实验结果吻合良好.A novel method is proposed for analyzing the sleeve monopole at the center of a circular ground plane. Using the moderately thick cylindrical model and sinusoidal interpolation basis function, the sleeve monopole at the circular ground plane is analyzed by the moment method. The input impedance and radiation pattern are given. Finally, a practical sleeve antenna, with the VSWR less than 3.0 in 225～515?MHz frequency band, is designed according to the analysis above. The results show that the model used in this paper is more accurate and practical.

关 键 词：套筒单极子天线 圆盘地面 矩量法 正弦插值基函数 

分 类 号：TN823.18[电子电信—信息与通信工程]