Design of linear transformer driver based on Blumlein pulse forming network

A cell module of linear transformer driver (LTD), based on Blumlein pulse forming network (PFN), is designed. Two Blumlein PFNs with 20 Ω resistance are symmetrically connected with the LTD’s primary coil. The connection reduces the design difficulty of PFN and improves the output pulse quality. High voltage pulses are derived from a 10 Ω matching load connected with the LTD’s secondary coil. The output pulse of the LTD module is about 200 ns in duration with a rise time of about 55 ns and a flat top of about 100 ns．