Time-Domain asymptotic-numerical solutions for transient scattered electric field from a conducting cylinder coated with a thick dielectric layer

By extending frequency-domain (FD) asymptotic solutions (FD-ASs), we briefly propose time-domain (TD) asymptotic-numerical solutions (TD-ANSs) for a transient scattered electric field when a high-frequency pulse wave is incident on a two-dimensional coated cylinder. We assume that a coating medium is thick as compared with the wavelength of a central angular frequency of an incident pulse wave. The TD-ANSs include multiple reflection effect passing through an inner portion of the coating layer as compared with a conventional TD-ANS. The validity of the TD-ANSs is confirmed by comparing with a reference solution.