【摘要】 利用体面混合积分方程分析金属和介质混合目标的电磁散射特性.对介质目标采用四面体剖分,金属目标采用三角形面元剖分,用矩量法精确分析金属目标和介质目标同时存在时的电磁散射特性.根据阻抗矩阵方程的特点,提出了一种简单有效的改善迭代法收敛特性的方法,并通过具体的算例说明了该方法的有效性.更多还原

【Abstract】 A coupled volume-surfaced integral equation is presented for the calculation of electromagnetic scattering from metallic and dielectric targets.In the method of moments(MoM) solution to the integral equations,the target is discretized using triangular patches for metallic surfaces and tetrahedral cells for dielectric volume.According to the characteristics of the impedance matrix,a simple effective method is presented to improve the convergence of the iterative algorithm.Finally,numerical examples are given to illustrate the efficiency of the method.更多还原