Roy Lewallen wrote:
I've done my analysis, and am satisfied with it. That's why I don't
rearrange things to suit your view of reality.
I've never before seen a person so proud of a contradiction. If reflected
power is greater than forward power, then the Poynting vector points away
from the load, but you have said it doesn't. So which is it?
Why are you unable to calculate the correct terms, collect them, or
whatever you think necessary, and show us what values they are and how
they add up to give us the forward and reverse powers you hypothesize?
I don't choose to waste my time on such a no-brainer issue. If the Poynting
vector points toward the load, the reflected power cannot be greater than
the forward power. Chipman goes out of his way to indicate that such an
apparent contradiction is caused by a resonance effect. The opposite sign
of the reactance of Z0 Vs the load is re-reflecting energy back to the load
because the load resistance is in series with the inductive reactance of the
load and the capacitive reactance of the feedline. The re-reflected energy
supplied by the capacitive reactance becomes forward power in the resistance.
That's why the Poynting vector points toward the load. According to Chipman,
that's why forward power minus reflected power CANNOT be negative.
--
73, Cecil
http://www.qsl.net/w5dxp
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