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Old March 19th 08, 11:57 AM posted to rec.radio.amateur.antenna
Keith Dysart[_2_] Keith Dysart[_2_] is offline
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First recorded activity by RadioBanter: May 2007
Posts: 492
Default The Rest of the Story

On Mar 18, 12:16*pm, Cecil Moore wrote:
Roger Sparks wrote:
Keith Dysart wrote:
Pr.g(t) = -50 + 50 *cos(2wt)
* * * * = -50 -50
* * * * = -100
which would appear to be the 100 watts needed to
heat the source resistor.


Thanks for a comprehensive analysis Keith. *It was helpful to me to see how you step by step analyzed the circuit.


Note that his analysis proves that destructive interference
energy is indeed stored in the reactance of the network and
dissipated later in the cycle as constructive interference
in the source resistor at a time when the instantaneous
source power equals zero.


I've made no claims about destructive or other interference
so I am intrigued by what you say my analysis proves.

Could you expand on how my analysis "proves" that
"destructive interference energy is indeed stored in the
reactance of the network and dissipated later in the cycle
as constructive interference in the source resistor at a
time when the instantaneous source power equals zero."

I am not sure why you focus on the infinitesimally small
times when "the instantaneous source power equals zero".
Are you saying that at other times, an explanation other
than interference is needed?
Or does interference explain the flows of the energy
in the reflected waves for all times?

It would be good if you could provide the equations that
describe these flows, especially the ones describing the
storage of some of the energy from the reflected wave in
the reactance of the network.

...Keith