In this letter, a physical optics (PO)-based scattered field calculation method is introduced. The proposed method divides the object into circular meshes. This technique exploited the analytical solution of scattered fields from circular plates to make it compatible with the PO surface integral framework. Therefore, it has no need for triangular-based surface reconstruction. The proposed method is compared to that of the PO with triangular mesh in terms of scattered electric power from a square plate and a spherical object. Given the averaged resolution of surface point at 0.04 of the wavelength, the proposed method yielded almost identical scattered power to those from the PO using triangular mesh.

中文翻译：

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基于圆形网格的物理光学用于散射场预测

在这封信中，介绍了一种基于物理光学（PO）的散射场计算方法。所提出的方法将对象划分为圆形网格。该技术利用了圆形板散射场的解析解，使其与PO表面积分框架兼容。因此，不需要基于三角形的表面重建。就来自方形板和球形物体的散射功率而言，将所提出的方法与具有三角形网格的PO的方法进行了比较。给定表面点在波长0.04处的平均分辨率，所提出的方法产生的散射功率与使用三角形网格的PO产生的散射功率几乎相同。