Scattering by an Eccentrically Loaded Cylindrical Cavity With Multiple Slits

Rigorous solutions for the scattered fields of an eccentrically loaded cylindrical cavity with multiple slits under TE or TM plane wave illumination are formulated using a Neumann series expansion. The series solution exhibits favorable convergence properties resulting in a computationally efficient scheme. The solution scheme is applied to several geometries, showing that the back scattered RCS due to the slot mode under TE incidence can be suppressed by reducing the continuous circumferential metallic length of the cylinder. Also, the low frequency RCS for TM excitation can be reduced by blocking large slit apertures with thin strips.