A combined field approach to scattering from infinite elliptical cylindersusing the method of ordered multiple interactions

The method of ordered multiple interactions (MOMI) is an iterative procedur e which has been demonstrated to provide a rapidly convergent series for th e problem of wave scattering from perfectly conducting surfaces rough in a single dimension. In this paper, we consider the extension of this techniqu e to the problem of scattering from infinite elliptical cylinders. For an i ncident plane wave having its electric field polarized along the asis of th e cylinder a combined field formulation of the scattering problem is found to provide a rapidly convergent MOMI series. The determination of an optima l combined field representation for the scattering problem in this case is also discussed. An extension of the MOMI method is necessary to properly tr eat the remaining polarization.