Pitfalls of staircase meshing

Abstract
The authors demonstrate that staircased approximations to curved or oblique electromagnetic interfaces yield poor accuracy unless the user has truly unlimited computer resources for two simple geometries: a conducting strip and a circular conducting cylinder. Conformal meshing reduces by a factor of four the resolution required in each direction. A conformally meshed circular cylinder model yields good radar cross section (RCS) predictions with only eight cells per wavelength.