Jim Kelley wrote:
The superposition of waves which are equal in amplitude and out of phase
equals zero at any time t. There is no time t in the steady state when
reflected waves to the left of the discontinuity can exist.

I agree and have never said they could. However, they do exist *at*
the impedance discontinuity, the point at which they are canceled.
To say the terms in the S-parameter equations don't ever exist in
the first place is ridiculous. That throws the entire S-parameter
analysis out the window.

The whole
point of the exercise is to prevent reflections. You're proposing that
the reflection is first allowed, and then it gets cancelled, but not
really cuz then it has to turn around somehow and go back the other way.

It is a no-brainer to know that all energy heads toward the load
because everything heads toward the load at the match point in
a matched system. Reflections are prevented by the cancellation
of two reflected waves. If those two reflected waves never exist,
as you assert, how the heck can they engage in wave cancellation?
You are obviously violating the rules of cause and effect. It
is my understanding that can only happen at the quantum level
in physics. So you are in violation of the conventional laws of
physics.

Here's the question that you have avoided like the plague and
refuse to answer. Until you answer this question, your postings
are simply gut feelings.

Given the reflected energy wave from a mismatched load barreling
toward the source at the speed of light, what phenomenon of physics
causes the energy and momentum in that wave to reverse direction?
--
73, Cecil http://www.qsl.net/w5dxp


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