[Amps] High current RF decoupling capacitors

[Alan Ibbetson]

I'm working on a high power amplifier design using high voltage 
switching MOSFETs. It all looks fine in LTspice (doesn't it always?) 
until I look at the PSU decoupling requirements. I need something of the 
order of 100nF at 350V with a ripple current rating of 4.5A RMS at up to 
10MHz.

Do such things exist? What sort of construction should I be looking for?

Thanks,

Alan G3XAQ
-- 

Alan Ibbetson
alan at g3xaq.net