Analysis of Moving Metallic or Dielectric Scattering Cylinders with the FDTD Method

This work proposes an original analysis of the illumination by electromagnetic plane waves of moving metallic cylinders and moving dielectric cylinders. Full-wave numerical investigations are carried out by using the Finite Difference Time Domain (FDTD) method. The implementation of motions is done by changing the positions of bodies at each cycle of the FDTD time loop. With this approach, time is implicitly absolute and Voigt-Lorentz transformations are not implemented. This technique is suitable for most problems in antennas and propagation domain, where non-relativistic speeds are considered. Configurations with multiple cylinders moving at different speeds are also studied. The numerical results are analyzed and discussed in detail, based on electromagnetic theory.