Two-dimensional scattering from thin screens of arbitrary cross section

A generalization of the Riemann-Hilbert problem approach, which gives good results in constructing highly efficient numerical methods in electromagnetic scattering theory, is presented. The derivation of this generalized method and the solution of two-dimensional diffraction wave problems on thin perfectly conductive screens having arbitrary cross-sections are presented. It is shown that the radar cross-section value of a number of circular cylinders may be increased considerably by an appropriate choice of cylinder locations, when the dimensions of the structure are comparable to the wavelength. The characteristics of excitation of an open resonator at the eigenfrequencies and near the eigenfrequencies by line sources are discussed.<>