半空间均匀手征旋转对称体的电磁散射分析

提出了将旋转对称体矩量法发展用于分析半空间环境下具有旋转对称结构的均匀手征目标散射特性。利用介质半空间矢量格林函数，建立了基于等效原理的表面积分方程组。利用其旋转对称特性，选取合适的基函数可以将三维分析降为二维分析，将原有大规模矩阵转化为求解一组具有小规模矩阵方程的问题，每个具有小规模矩阵方程的问题为原问题的Fourier模式，从而大大减少所求问题的计算复杂度，降低内存需求。最后通过数值算例验证了本文所发展的旋转对称算法的准确性和有效性。

Electromagnetic scattering from homogeneous chiral body of revolution in the lossy half space

The method of moment for a body of revolution (BOR-MOM) is developed to analyze scattering from the homogeneous chiral body of revolution in the half space environment. The Poggio-Miller-Chang-Harrington- Wu (PMCHW) integral equation is formulated using the surface equivalence principle, and the half space dyadic Green’s functions is applied to the integral equation for the external equivalent problem. The usage of the axisymmetric property of the body of revolution can convert an original problem into a series problem with small of matrix equations, each of which is a Fourier mode of the method of moment for the body of revolution. Finally, numerical results demonstrate that the developed method of moment for body of revolution is valid and can greatly reduce the computational complexity.