The transient response of finite open circular cylinders

An eigenmode expansion formulation of the singularity expansion method based on the electric field integral equation is developed for the transient response of conducting finite open cylyinders. The eigenvalues and eigenfunctions of the impedance operator are calculated by the Galerkin method using entire domain expansion functions. The transient surface current density and backscattered far field in response to an incident electromagnetic pulse are calculated for cylinders of various aspect ratios.