I apologize for the bandwidth, but...
Searching help from the radio amateurs colleagues:

I need to produce a hot rod, 3 inches long, 1 mm diameter (this is the
killer), vertical or horizontal mounting, solid material as copper -
brass - steel - ceramic - etc., to achieve aprox 300-400¡C, mechanical
mounting at one side (tip and 3 inches free in the air). Temperature
should be uniform all along the 3".  After several failures using lots
of crazy ideas (since just the rod should be heated, not the rod
mounting base), I thought about radio frequency heating.  What happens
if an antenna is made of resistive wire? with or without wavelength
match, applying high power RF to this "dipole" (or monopole since just
one rod would be used) the antenna element would heat?  There is nothing
close to the rod for more than 4 ft, except for the mounting base.

As this subject doesn't interest the list at all, please email me
directly.
Thank you and regards,

Wagner.