A compact square wave 15 kJ generator: <15 ns rise-time; 7.5 ohms load impedance; and, pulse width 100-500 ns

Summary form only given, as follows. To broaden our knowledge in radio frequency (RF) and a high power microwave (HPM) generation, it is useful to energize our advanced RF& HPM source with a driver that has low internal impedance. It is useful to find out if our source also suffers from limitation known as "pulse shortening." This means that by increasing the radiative power, the length of the pulse becomes shorter. Hence, there is a limitation in the energy radiated in a single shot. This paper describes a compact six stage-Marx generator. It is built using the concept of pulsed-forming networks. The capacitance per stage is 0.500 F and the charging voltage is organized to vary from 25 to 100 kV. With the matching (dummy) load of 7.5 ohms; used, the maximum output voltage should be 300 kV and the maximum output current 40 kA. The stored energy in the system is 15 kJ and the peak power supplied to the load of 7.5 Ohms is 12 GW. Without crowbaring, the pulse width is 0.82 ns. When the crowbar switch is added, the pulse width can vary from 100 to 500 ns in a predictable manner.