High frequency scattering from an open-ended semi-infinite cylinder

A simple high-frequency asymptotic expression for the backscattered field from a semi-infinite hollow circular cylinder is derived from the exact Weiner-Hopf solution. The resultant equations are valid for both polarizations and can be easily numerically evaluated. Comparisons of the computed results and the measured data acquired through the utilization of a sub-nanosecond pulse radar system are generally good.