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Derivation of the Reflection Coefficient?
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September 4th 03, 07:11 AM
Dr. Slick
Posts: n/a
wrote in message ...
And yes, |rho| can be greater than unity for a passive load.
...Keith
Absolute Rubbish.. Could you produce a passive circuit that
will reflect a greater voltage than what you feed it? I'd
LOVE to see that...
The ratio Pref/Pfwd is directly related to the ratio [rho].
Pref/Pfwd = [rho]**2 Absolute value brackets are a must!
Consider that after the absolute value brackets, the phase information
is gone. But since we are going to a ratio of average (RMS)
values OR peak values of power, it doesn't matter.
In other words, if you use V**2/R, the "V" can be either peak or
RMS, it doesn't matter, because it is a ratio. And of course, the "R"
doesn't matter either. And of course, the phase information is gone
with
the absolute value brackets.
If you agree that the Pref/Pfwd ratio cannot be greater than 1
for a passive network, then neither can the [Vref/Vfwd]= rho be
greater
than 1 either.
Some people wanna rewrite some books here.
Slick
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