New formulation of resonance scattering theory for a dielectrically coated conducting cylinder

The resonance scattering theory (RST), originating from the theory of nuclear reactions, is a general approach to analyzing the resonance phenomena in scattering amplitude. The new RST that has recently been developed in the field of acoustics suggests that there are three interacting contributions: the resonance, the background, and their correlation. The moduli and phase of the resonance coefficient are obtained with the appropriate results through the new RST. In this paper, the new RST is applied to the two-dimensional scattering problem of electromagnetic waves for a dielectrically coated conducting cylinder, and the numerical result is shown.