Electromagnetic wave in the medium with dispersion of dielectric permittivity

The technique for numerical modelling electromagnetic wave propagation in materials, which dielectric permittivity depends on frequency, is represented. The technique is based on numerical solution of Maxwell equations with additional integral component in displacement current density. The technique for displacement current density calculation in dispersive medium is represented, the corresponding modification of earlier developed finite-difference scheme for Maxwell equations is carried out. The calculation of electromagnetic pulse propagation in the solidpropellant power system is executed.