论文标题
关于物理光学的有效性，用于窄带梁散射和衍射范围。
On the Validity of Physical Optics for Narrow-band Beam Scattering and Diffraction from the Open Cylindrical Surface
论文作者
论文摘要
由于任意窄带梁在开放式圆柱形表面上，在圆柱形的表达中显示了在圆柱形谐波的上下文中，在其封闭形式的表达中显示了诱导的电表电流（散射现象）和在开放式圆柱形表面上的等效电表面电流（在衍射现象中）的确切公式（在衍射现象中）。电场积分方程（EFIE）和磁场积分方程（MFIE）都用于在圆柱谐波的背景下找到诱导的（等效）电表现电流。显示了从开放式圆柱体表面散射和衍射的数值示例。结果对于评估圆柱样表面中PO近似的有效性很有用。
The exact formulas for the induced electric surface current (in the scattering phenomenon) and the equivalent electric surface current (in the diffraction phenomenon) on the open cylindrical surface due to an arbitrary narrow-band beam have been shown in their closed-form expressions within the context of the cylindrical harmonics, which gives information about the validity of the Physical Optics (PO) approximation. Both the Electric Field Integral Equation (EFIE) and the Magnetic Field Integral Equation (MFIE) are used to find the induced (equivalent) electric surface currents in the context of the cylindrical harmonics. The numerical example of the scattering and diffraction of the Hermite Gaussian beam from the open cylindrical surface is shown. The result is useful for the evaluation of the validity of the PO approximation in the cylinder-like surface.
