一种有效的天线三维辐射方向图计算方法  

An efficient algorithm for calculating three-dimensional radiation patterns of antennas

作　　者：焦永昌[1] 文园[1] 张福顺[1] 

机构地区：[1]西安电子科技大学

出　　处：《电波科学学报》2008年第2期229-234,共6页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(No60171045)

摘　　要：提出了一种根据已知的天线E面和H面方向图计算天线的三维辐射方向图的近似算法。以全向和定向天线为例,仿真比较了此算法和两种已有算法计算得到的天线三维辐射方向图与理论结果之间的误差。结果表明,该算法误差较小,可以有效地计算天线的三维辐射方向图。根据生成的三维辐射方向图,计算了天线的方向性系数,所得结果与理论值吻合良好。This paper presents an approximation algorithm for calculating the threedimensional （3D） radiation patterns of antennas based on their H-plane and E-plane patterns. By using the proposed algorithm, the 3D radiation patterns of the omnidirectional antenna and the directional antenna are calculated, and the absolute errors of the obtained results from the theoretical patterns are then compared with those provided by other techniques. The comparison results indicate that the proposed algorithm exhibits low approximation errors, which can be used to calculating the 3D radiation patterns of antennas efficiently. According to the generated three-dimensional radiation patterns, the directivities of the antennas are also calculated, which are in good agreement with the theoretical values.

关 键 词：天线 三维辐射方向图 算法 方向性系数 

分 类 号：TN820[电子电信—信息与通信工程]