Keith Dysart wrote:
On Dec 25, 11:10 am, Cecil Moore wrote:
Keith Dysart wrote:
Cecil Moore wrote:
Keith Dysart wrote:
Except that V(x,t) and I(x,t) are not, in general, related by Z0.
From "Fields and Waves ..." by Ramo & Whinnery, 2nd edition:
V(x,t) = V*e^j(wt-kx) + V'*e^j(wt+kx)
I(x,t) = [V*e^j(wt-kx) - V'*e^j(wt+kx)]/Z0
You are quite unfair to Ramo & Whnnery when you quote them
out of context. It makes them look like they do not have a
clue.
It's not out of context. Those are their equations for
standing wave voltage and standing wave current. It is
net voltage and net current because each equation is
the sum of two component values.

Apologies to Ramo, Whinery and Cecil. I mis-read the
quoted equations.

...Keith

That's o.k., Cecil doesn't really understand them. If he did,
he wouldn't need to parrot them out of a book.
73,
Tom Donaly, KA6RUH