A high voltage pulse power supply based on novel Blumlein type pulse forming line with periodic slotted insulation structure

A high voltage pulse power supply based on a Blumlein type pulse forming line (PFL) with a Periodic Slotted Insulation Structure (PSIS) is designed and constructed in this paper. The Blumlein type PFL with PSIS, which inserts PSIS both in the inner line and outer line of the conventional Blumlein type PFL, is able to obtain output waveforms with higher quality and higher energy efficiency compared with the conventional Blumlein type PFL. Meanwhile, the combined insulation structure formed by the media of PSIS and the glycerin filled with the PFL can be used to optimize the electric field strength of the PFL, thereby improving the stability and reliability of the PFL in the repetitive-operation mode. The experimental results show that the high voltage pulse power supply designed in this paper had an output power of about 5 GW at a 50 Ω load, a pulse width longer than 80 ns, a repetition rate of 20 Hz, and supported 100 pulses in one run.