Gene Fuller wrote:
Sorry, I simply cannot keep up with you. We seem to be switching from RF
to optics in order to explain something or other, and now we are
switching from optics to S-parameters to explain the explanation.

So are you saying the physics concepts from the field
of optics are wrong? Are you saying the S-Parameter
equations are invalid? If not, seems you are having
a hard time defending your concepts against those
valid concepts. That should tell you something about
your (simplified short cut) concepts.

I'm going to keep it up until you give up on the notion
that you already know everything and therefore reality
obeys your every whim. You cannot dismiss wave cancellation
simply because you find that part of reality distasteful.

In analyzing an impedance
discontinuity in a transmission line, the S-Parameter
equations are accepted as valid. b1 is the normalized
reflected voltage toward the source.

b1 = s11(a1) + s12(a2) = 0

When b1 is zero, waves s11(a1) and s12(a2) have been
canceled because they are of equal magnitude and opposite
phase. Simple cause and effect - not rocket science.

If you can prove those concepts from the field of optics
are invalid and that an S-Parameter analysis is invalid,
now would be the time.

You accuse me of saying that waves never "cancel", right after I told
you that "cancel" is not a good description in detailed technical
analysis. Do you actually read anything here?

Wave cancellation occurs all the time, Gene. Every time
a ham tunes his antenna tuner for zero reflected power,
he has caused two reflected waves to cancel. I am amazed
at how many otherwise intelligent posters to this newsgroup
attempt to engage in the copout of sweeping under the rug
anything that they do not understand and/or don't want to
deal with.

Stick to the basic EM understanding that has stood for more than 100
years.

That's exactly what I am doing. You seem to be relatively
ignorant of those century old concepts. I don't know when
interference was first explained but it was long before
you and I were born. I am repeating principles that have
been around for a century including the wave reflection
model.

What has actually happened is that seductive short cuts
have left many ignorant of the basic principles, e.g.
Standing waves can exist without reverse traveling waves.
Reverse traveling waves exist without a source of energy.
Waves never interact. etc. etc. etc.
--
73, Cecil http://www.w5dxp.com