Cecil Moore wrote:
Jim Kelley wrote:

Roy Lewallen wrote:

Did anyone understand it? If so, would someone else please try to
explain it to me? Where does that 18 watts of "reverse power" go, and
why?


Wouldn't it go to the circulator load which must always be placed at
the source in order to clearly illustrate what happens when a
circulator isn't in place at the source?


When a Z0-match is in place at the source, everything is also clear
since zero reflected energy reaches the source.

But there's a Z0 match at the source in my example. Simple wave
mechanics show that the initial traveling voltage and current waves
reflect from the load, return to the source, and don't reflect any
further -- steady state is reached after a single round trip. That's a
Z0 source match. No circulator is required.

The Z0-match case,
using an antenna tuner, is the most likely case to be encountered
in ham radio. 100% of the reflected energy and momentum

Walt's book mentions momentum? Where?

is re-reflected
back toward the load, just as Walter Maxwell has been saying as long
as I can remember.

Hm. You said earlier that 11.52 watts of the reverse power wave reached
the source. In a posting a short while ago you said that none of it is
re-reflected (since rho at the source = 0), and now you say it all is.

Guess that covers just about any possibility -- no matter how things
come out, you can say you gave the right answer. You might consider
tossing out a couple more just in case.

This stuff is not new. It is explained in "Fields and Waves ..."
by Ramo and Whinnery, copyright 1950's.

Did they give three different answers to a simple question?

Roy Lewallen, W7EL