PFN stacked Blumlein pulse generator commutated by single switch

This paper presents a pulse forming network(PFN) stacked Blumlein pulse generator commutated by a single switch, in which the PFN is composed of ceramic capacitors and plate conductors. The shorted discharging characteristic of the shorted parasitic transmission line was analyzed in theory. Results show that the shorted parasitic transmission line could be replaced by a shorted inductor. Equivalent circuit models were simulated using Pspice code to compare the effect of the shorted parasitic transmission line with that of the shorted inductor. Simulation results show that the increase in the inductance of the shorted parasitic transmission line could improve the voltage efficiency. A four-stage stacked Blumlein pulse generator with magnetic cores was designed to increase the shorted inductance. Its voltage gain reaches 3.1 on the matched load.