Owen Duffy wrote:
Keith, that was indeed my point, that talking of the forward and
reflected waves as power waves ...

If you are trying to quote me, Owen, you are misquoting me.
Exactly what is it about the following excerpts from my
2005 energy article with which you disagree?

From: "An Energy Analysis at an Impedance Discontinuity in
an RF Transmission Line", by W5DXP, WorldRadio, Oct. 2005

"Single-source RF energy in a transmission line and laser
light are both coherent electromagnetic energy waves that
obey the laws of superposition, interference, conservation
of energy, and conservation of momentum."

"The term "power flow" has been avoided in favor of 'energy
flow'. Power is a measure of that energy flow per unit time
through a plane. Likewise, the EM fields in the waves do the
interfering. Powers, treated as scalars, are incapable of
interference."
--
73, Cecil http://www.w5dxp.com