David G. Nagel wrote:
The excess energy is
that which is reflected back into the finals by any other antenna.

Sorry, in a tuned system, the "excess energy" is re-reflected
back toward the antenna at the match point. Here's an example:

100w XMTR--50 ohm coax--+--1/2WL of 300 ohm twinlead--50 ohm antenna

More than half the forward power is reflected from the antenna
but it is turned around and re-reflected back toward the antenna
at the coax/twinlead junction at point '+'. The reflected energy
reaching the finals is ZERO!

Reflected energy, per se, is not bad. Reflected energy that is
allowed to reach the finals is bad. In most systems, an antenna
tuner solves the problem.
--
73, Cecil http://www.qsl.net/w5dxp