Scattering for singly curved functional surfaces and corresponding planar designs

We investigate the scattering of plane waves from singly curved multilayer structures. It is shown by several examples that by normalizing the monostatic echo width by the corresponding echo width of a PEC cylinder with the same outer radius, a number close to the reflection coefficient for a planar design is obtained if the radius of curvature is about a wavelength or more. It is also shown that the polarization with the electric field parallel to the cylinder axis is less sensitive to curvature than the polarization with the magnetic field along the axis.