Dispersion by periodic screens of broadband electromagnetic pulses

Research of dispersion on the planar periodical grating of the amplitude-modulated pulses of any duration has been considered by the numerical analysis of spectral functions of scattered field and integrated representations of studying fields. From calculated curves the parameters of planar periodical grating, at which the scattered signal possesses the maximal distortions as the decreasing of amplitude, appearing of group delay and increasing of effective duration, are determined. The behavior of pulses on various distances from a periodic grating is considered.