"David Robbins" wrote in message ...


Please show us if he correctly defines formula (1) and why. And i'd
also
like to see if someone can derive these:

ai= (Vi+Zi*Ii)/(2*sqrt(Re(Zi))
bi= (Vi-conj(Zi)*Ii)/(2*sqrt(Re(Zi))

For what he calls the incident and reflected power waves.

re-read my reply above until you understand it... (1) is GIVEN, it is the
starting point, he DEFINED ai and bi to be those values... the then goes on
for several paragraphs explaining why he thinks those are better waves than
other types of waves.


Well, I certainly didn't expect you to provide the derivation,
but maybe someone else can.

And there is the point that if Zi is real and positive, the
power wave is actually a voltage wave.


Slick