On Apr 11, 9:02 am, Cecil Moore wrote:
Again, the challenge is for you guys to generate standing-
waves in the complete absence of reverse traveling waves.

I do recall a textbook derivation of the voltages and currents
on a trasmission line that used the distributed model and
differential equations. It expressed the result in terms
of x (distance along the line) and t (time). It was messy.

It then followed this with a proof showing that thinking of
the system as having a forward and reverse wave produced the
same result. This was much simpler.

But which one was real?

In the end, it is the actual distributed voltage and current on
the line that are real, not the means of describing them.

Both methods accurately describe these, but I certainly prefer
the latter since I can do the math for it.

Still, just because I like to think of it that way, just because
it gives me the right answers, does not mean that that is the way
it is.

Reality is the distributed voltage and current.

Use the analysis technique of your choice, but only as long as
it gives you the correct answers.

....Keith