Building a High-Current, High-Frequency Pulse Generator

[axawire]

Hi,

I need some help/ideas/direction... I need to build a pulse generator that is capable of generating a peak current between 100A~1000A that lasts for about 0.5ns and can be ready to pulse again in 0.5ns so the frequency of operation is around 1Ghz

Help!

Thanks

 

[pallidin]

How about a really stout step-down transformer(likely home-built).