Diffraction of H-polarized plane wave by cylindrical cavities of arbitrary shape

Abstract

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 wellknown approximate techniques with the developed approach has been exploited for studies of wave scattering problems for elongated cylinders of arbitrary cross-section. ©2007 IEEE. © 2008 Elsevier B.V., All rights reserved.