One word answers...
Dan Bloomquist wrote in
:
Owen Duffy wrote:
Dan Bloomquist wrote in
news:4khKh.5006$ya1.3770 @news02.roc.ny:
Owen Duffy wrote:
Dan Bloomquist wrote in
:
Are the principles that apply to this example inconsistent with
the general case (eg dc, ac, transient, steady state etc)?
Yes.
I would have thought the answer was NO, the principles are *not*
inconsistent with the general case.
Hi Owen,
See the example I posted where a pulse is sent down the line. In that
case all the energy is dissipated in the source resistor.
Dan, I don't deny there may be cases where that may happen, but it is
not true that reflected power is necessarily dissipated (or partly
dissipated) in the equivalent source resistance.
And I answered accordingly when you asked the very question, I agreed
with you. And I showed just that in the step example of a previous
post.
Dan we are agreed!
My conclusion is that the view put by some that reflected power is
(necessarily) fully or partly dissipated in the PA equivalent source
resistance, (possibly overheating the PA,) is a simplistic view, the
explanation doesn't apply in general and although apparently appealing,
it is wrong.
Owen
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