近地对数周期偶极天线的分析  

Analysis of the Log-periodic Dipole Antennas over a Ground Plane

作　　者：丁晓磊[1] 王建[2] 林昌禄[2] 

机构地区：[1]中国航天科技集团公司一院704所,北京100076 [2]电子科技大学微波工程系,成都610054

出　　处：《微波学报》2003年第3期43-46,共4页Journal of Microwaves

摘　　要：采用矩量法结合离散复镜像法求解近地对数周期偶极天线的电流分布 ,用基于驻相法的远场Som merfeld积分近似公式求解辐射场。在计算广义阻抗矩阵元素时 ,利用矩阵的互易性和天线阵的结构对称性进行了算法优化 。The paper applies the moment method and discrete complex image method to determine the distribution current of log periodic antennas over a ground plane , applies the far field approximation of the Sommerfeld integral based on the stationary phase method to determine the radiation patterns. Benifiting the symmety and the reciprocity of the general ized matrix, only a few elements of the generalized matrix need evaluated. After the optimizing for the algorithm, the calculating time can be decreased evidently .

关 键 词：矩量法 离散复镜像法 近地对数周期偶极天线 辐射场 电流分布 

分 类 号：TN821[电子电信—信息与通信工程]