Propagation of short pulses in irregular electromagnetic waveguides with a variable topology of the cross section

A method for real-time electrodynamic calculation of the dynamics of propagation and transformation of short ultrawideband electromagnetic pulses (UWB EMP) in irregular waveguides with discontinuous junctions is presented. The results of numerical simulation of a pulse passing through a junction of a coaxial waveguide having doubly connected cross sections and a waveguide horn with singly connected cross sections and through a discontinuity of the inner conductor in an irregular coaxial waveguide are presented.