The emp radiation by aperture antennas

The evolution of short-superwide-band electromagnetic pulses (EMP) excited by rectangular aperture antennas is investigated. The existence of the range of pulse and antenna parameters is demonstrated, at which the pulse propagates with negligible loss of energy (phenomenon of electromagnetic missile). On the basis of exact solution of the diffraction problem and the numerical treatment of results the evolution of EMP shape is ivestigated and described.