Transient phenomena of electromagnetic waves by the abrupt extinction of interior terminative conducting screen in waveguide

The problem of transient scattering caused by abrupt extinction of a termin ative conducting screen in a waveguide is considered. First, a boundary-val ue problem is formulated to describe the transient phenomena, the problem i n which the boundary condition depends on time. Then, application of the Fo urier transformation with respect to time derives a Wiener-Hopf-type equati on, which is solved by a commonly known decomposition procedure. The transi ent fields are obtained through the deformation of the integration path for the inverse transformation and the results are represented in terms of the incomplete Lipschitz-Hankel integrals. Numerical examples showing typical transient phenomena are attached.