Umul Yusuf
Opt Express. 2004 Oct 4;12(20):4959-72. doi: 10.1364/opex.12.004959.
A new procedure for calculating the scattered fields from a perfectly conducting body is introduced. The method is defined by considering three assumptions. The reflection angle is taken as a function of integral variables, a new unit vector, dividing the angle between incident and reflected rays into two equal parts is evaluated and the perfectly conducting (PEC) surface is considered with the aperture part, together. This integral is named as Modified Theory of Physical Optics (MTPO) integral. The method is applied to the reflection and edge diffraction from a perfectly conducting half plane problem. The reflected, reflected diffracted, incident and incident diffracted fields are evaluated by stationary phase method and edge point technique, asymptotically. MTPO integral is compared with the exact solution and PO integral for the problem of scattering from a perfectly conducting half plane, numerically. It is observed that MTPO integral gives the total field that agrees with the exact solution and the result is more reliable than that of classical PO integral.
介绍了一种用于计算理想导体散射场的新方法。该方法基于三个假设定义。反射角被视为积分变量的函数，评估了一个新的单位向量，该向量将入射光线和反射光线之间的夹角分成两个相等的部分，并将理想导体（PEC）表面与孔径部分一起考虑。这个积分被称为修正物理光学理论（MTPO）积分。该方法应用于理想导体半平面问题的反射和边缘衍射。通过驻相法和边缘点技术渐近地评估反射场、反射衍射场、入射场和入射衍射场。将MTPO积分与理想导体半平面散射问题的精确解和PO积分进行数值比较。结果表明，MTPO积分给出的总场与精确解一致，并且结果比经典PO积分更可靠。
