线面结构天线辐射的MoM-PO混合法分析

The hybrid method of MoM-PO for antenna radiation of line-surface structure objects

介绍了利用矩量法求解线面复杂结构目标的电磁散射问题,并给出了一般的矩阵方程.并在以平面三角形电流为基展开的物理光学表面电流基础上,对矩量法和物理光学的混合方法的理论进行了细致和深入的研究,推导出了一般的矩阵方程表达式.仿真实例说明了该混合方法的精确性和高效性.

First, the problem of scattering by arbitrarily shaped objects is studied by the method of moment (MoM), when a thin wire antenna exists, with the general matrix equation given. Then a current based hybrid method combining the MoM with the physical optics (PO) approximation based on RWG for three-dimensional perfectly conducting bodies is studied profoundly, with the general matrix deduced. Finally, two examples about scattering from large electric objects are given to illustrate the hybrid methods accuracy and high efficiency.