Abstract
In this chapter, the calculation of physical optics (PO) part of the scattered field is shown, that is, the field generated by the uniform component of the induced surface scattering sources. This calculation can be used to examine the field radiated by the nonuniform sources as the difference between the exact and physical optics fields. The chapter demonstrates the conversion of PO integrals to the canonical form. It also demonstrates the derivation of fast convergent integrals and asymptotic expressions for the PO diffracted field. The related results of a numerical comparison of the PO approximation against the exact solution for the wedge diffraction problem have been presented by Hacivelioglu et al.
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