有限偶极子天线阵的电磁散射理论研究

研究了一种求解阵元为偶极天线的有限阵列的电磁散射的方法：利用RWG基函数和偶极模型的特殊性，将近似无穷小的偶极天线产生的电流代替由RWG基函数相邻边缘元素产生的电流，此方法有效地计算了散射场。讨论了RWG基函数的基本概念及其在计算阵列散射场中的应用，以极坐标的形式给出了不同的阵元间距、入射频率、入射角度以及不同阵元数目的散射场仿真图形，为其他形式的阵列天线散射特性研究提供了依据。

The Research on Electromagnetic Scattering Property of Finite Dipole Antenna Array

A new method solving electromagnetic scattering property of finite dipole array was proposed.Because the surface current distribution for each Rao-Wilton-Glisson(RWG) edge element was replaced by an infinitesimal dipole in the dipole model,the scattering field was then obtained from the contributions of infinitesimal dipole.Finally,the scattering simulated patterns were given from different array element separations,incident frequencies,incident angles and array element numbers with polar coordinates.It provides the basis for the research on other kinds of array antennas' scattering properties.