Gaussian beam diffraction by a fast moving wedge

This contribution is concerned with deriving the scattering of a time harmonic Gaussian beam from a moving PEC wedge. The incident wave object serve as the basis wave propagators of the phase-space beam summation method which is a general framework for analyzing propagation of scalar and electromagnetic fields from extended sources. By utilizing the Lorentz Transformation and applying Maxwell´s boundary conditions in the (scatterer) co-moving frame, the exact solution for the total fields is obtained in both the laboratory and the comoving frames in the form of spectral integrals. By using high frequency asymptotics the total electromagnetic field is recast in the form of GO and diffraction terms. Finally, a low velocity approximation is applied to the fields.