Multiple diffraction of a line source field by a three-part resistive plane

The investigation of multiple diffraction between the interacting edges of planar structures is an important phenomenon in diffraction theory and rele vant for many engineering applications. In this paper, a uniform asymptotic high-frequency solution is developed for the diffraction of a line source field by a three-part resistive plane. The related boundary-value problem i s formulated into a modified scalar Wiener-Hopf equation (MSWHE). By perfor ming the factorization of the kernel functions through the Maliuzhinets fun ction, MSWHE is reduced to a pair of coupled Fredholm integral equations of the second kind and then solved approximately by iterations.