Somebody told me that litz wire should only be used below 3MHz.
It seems to me that the skin depth in copper at 150 MHz (5.4 micron) would require litz wire made od very thin strands.
What should I believe and why?
they would be the fastest fuse
Vfone, dunno if you have followed htg's other thread where some of these questions have already been asked/answered ....
htg is planning on several kW of RF power @ 150MHz I had already commented that what was needed was a solid and sizeable diameter rod as the RF probe into the waveguide
This probe, if required, could be silver or gold plated to aide with skin effects
Reading the said other post, it seems to me, that the present discussion is more or less useless. One more bad cross posting example. I still keep my opinion, that litz wire usage can be meaningful for 10 or 100 MHz range, but most likely not for waveguide transition or transmission line design in generally.
Reading the said other post, it seems to me, that the present discussion is more or less useless. One more bad cross posting example. I still keep my opinion, that litz wire usage can be meaningful for 10 or 100 MHz range, but most likely not for waveguide transition or transmission line design in generally.
An exact EM simulation can tell. But I think, there's an important difference, that the dielectric current is flowing into the surface,
so the there won't be an even current distribution.
Coax cables with multi kW power ratings have e.g. 5 mm center conductor (like RG218).