GTD-MOM技术求解细理想导电圆柱电磁散射

GTD-MOM Technique for Finding Electromagnetic Scattering of a Fine Perfect Conduction Cylinder

对GTD -MOM技术进行了研究 ,根据GTD -MOM技术提出了一种物理模式基的概念 ,并用之分析了细理想导电圆柱的电磁散射 ,求解了其雷达散射截面积 (RCS)。假设圆柱表面上的电流由三部分组成 :入射波的感应电流和圆柱两端的反射电流。该方法与传统的全域基矩量法相比减小了计算机内存 ,加快了计算速度 ,而且数值计算结果与全域基的结果吻合较好。

GTD-MOM techniques are studied, the physical model basis is put up by GTD-MOM techniques ,and the far scattered field and radar cross section of a fine perfect conduction cylinders is calculated using this method. The currents on the cylinder consist of three components: the current induced by the incident field and the reflected currents from the cylinder terminations. In comparison with MOM of total domain basis ,this method consumes much less memory and time, and the results of this method are in good agreement with those of MOM.