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卡门翼形和任意多边形是两种典型的不规则形体，由于其不规则曲边和尖锐的角点，它们的电磁散射问题给传统的FDTD数值求解造成了一定的困难．这是因为要获得较高的精度，必须细分网格，从而增加内存需求和计算时间。本文利用形体变换结合时域有限差分法的Thompson－FDTD方法对这两种典型的不利形体的散射问题进行了数值模拟，其结果进一步验证了Thompson－FDTD方法对散射体几何形状变化具有较强的适应能力和较高的数值精度。
Carmen wing and arbitrary polygon are two typical irregular bodies. Due to their irregular curved edges and sharp corners, their electromagnetic scattering problems have caused some difficulties in the traditional FDTD numerical solution. This is because for higher accuracy, the grid must be subdivided, increasing memory requirements and computing time. In this paper, we use the Thompson-FDTD method of the finite difference time-domain method to simulate the scattering of these two typical unfavorable forms. The results further verify that the Thompson-FDTD method has a strong effect on the geometry change of the scatterer Adaptability and high numerical precision.