High voltage electromagnetic pulse generator

A high voltage electromagnetic pulse generator, wherein, it comprises a capacitor having an axis of revolution, disposed around an internal conductor having an axis of revolution coinciding with that of the capacitor, whereby the latter can be charged by a direct current power supply, said direct current power supply having a high voltage terminal and an earth, a conical spark gap, whose axis of revolution can coincide with that of the capacitor having at least two electrodes, namely an external electrode and an internal electrode, and making it possible to discharge the capacitor in pulse-like manner, a ballast resistor having an axis of revolution, connected in series with the spark gap in such a way that the external electrode of the spark gap is directly connected to the high voltage terminal of the power supply and the internal electrode of the spark gap is connected to the earth of said power supply, via the internal conductor and the ballast resistor, as well as spark gap control means, the capacitor, the spark gap and the ballast resistor of said generator forming with the internal conductor a coaxial line having a constant impedance along said line.