Diffraction of H-polarized Plane Wave by Cylindrical Cavities of Arbitrary Shape

The diffraction problem for an arbitrary shaped cylindrical cavity excited by a H-polarized plane wave is rigorously solved by the Method of Regularization. Along with the previously solved analogous problem for E-polarization this rigorous solution completes the construction of a reliable and highly efficient analytic-numerical technique for the analysis of diffraction problems for metallic cylinders of an arbitrary cross-section. Both problems are reduced to the numerical solution of a well-conditioned infinite system of linear algebraic equations of Fredholm type. Its numerical solution is effected by a truncation method. The computational accuracy only depends on truncation number. The effectiveness of this approach is demonstrated by examples of wave scattering problems for two-dimensional airfoils and engine intakes of various shapes. The combination of well-known approximate techniques with the developed approach has been exploited for studies of wave scattering problems for elongated cylinders of arbitrary cross-section.