A contribution to scattering calculation for small wavelengths-the high frequency panel method

Numerical treatment of electromagnetic scattering in the case of small wavelengths-too small for reasonable matrix sizes when using discretization methods and too large for traditional asymptotic methods-is considered. An approach which takes advantage of the user-friendly nature of matrix-discretization methods while avoiding the explosive increase in computing effort as the wavelength decreases is suggested. It appears that no sensible increase of matrix size is required as the wavelength decreases. Since this is an untried technique applied in an inaccessible computational domain, the preliminary work described is confined to two-dimensional conducting circular cylinders where the answers are well known and well understood. The overall idea, however, appears to be quite general