Jim Kelley wrote:
You fail to explain how any of that makes energy unavailable for
"radiation purposes".

This is not rocket science. If the energy is being used to
transform impedances, it is obviously unavailable to be lost
as radiation. If all the forward energy is radiated by the
antenna, there exists no impedance transformation in the
transmission line. A highly technical quote must be needed:

"You can't have your energy cake and eat it too." :-)
--
73, Cecil http://www.w5dxp.com