Re: The Rest of the Story

Keith Dysart wrote:
Ahhh, but there is then agreement that energy flows (power) must
be in balance to satisfy conservation of energy.

You can probably answer your own question by figuring
out how the light energy in an interference pattern
gets from the dark ring to the bright ring some
distance away. Do you think it happens faster than
the speed of light?

It is just that it comes up short since there is no
explanation of where the energy goes. Were an adequate
explanation to be offered, I would quite accept it.

I am satisfied with the destructive/constructive
interference explanation. That you have come up
short in tracking those component energies is not
unexpected given your prejudices.

If you told me your car disappeared from existence
because you cannot find it, I wouldn't believe you
either.

You should tread back through the posts, the question was
answered.

"It depends" was no answer - that was just mealy-mouthing.

In the special case presented in Part 1, there are only
two sources of power dissipation in the entire system,
the load resistor and the source resistor.

Three! The source can also take energy from the system.

The Vs source has zero resistance rendering dissipation
impossible. I repeat: There are only two sources of
power *DISSIPATION* in the entire system, the load
resistor and the source resistor.

The source can certainly throttle back its output when
there is destructive interference in the source resistor
and increase its output when there is constructive
interference in the source resistor, but it CANNOT
dissipate any power.

Since you have overlooked the source, the rest of your
post is quite flawed in its conclusions.

Nope, you are confused. The source can adjust its output
but the source cannot *DISSIPATE* power. As I said, the
only sources of power *DISSIPATION* are the two resistors.
No amount of obfuscation is going to change that.

Perhaps adding a circulator to my Part 1, Fig. 1-1 will
allow you to see things in a clearer light. Of course,
using light would be even better.

Gnd--1---2---Vs---Rs-----45 deg 50 ohm----------RL
\ /
3
|
50 ohms
|
GND

How much power is dissipated in the circulator
resistor?

How much power does the source have to supply to
maintain 50 watts of forward power on the transmission
line?
--
73, Cecil http://www.w5dxp.com
.

Relevant Pages

  • Re: The Rest of the Story
    ... that the reflected energy was dissipated in the source ... My earlier claim was that the average power in a reflected ... wave is dissipated in the source resistor when the forward ... dissipation does not occur at the correct time. ...
    (rec.radio.amateur.antenna)
  • Re: Standing-Wave Current vs Traveling-Wave Current
    ... line through a source resistor equal to Z0, ... would be creating power unless the cosis negative. ... It means that some excess amount of destructive interference ... The reflection from a surface should create standing waves in LOCAL space that will contain double the power of open ...
    (rec.radio.amateur.antenna)
  • Re: Standing-Wave Current vs Traveling-Wave Current
    ... the series source resistor, where the energy goes becomes ... Total destructive interference in the source ... current is calculated which results in power in the ...
    (rec.radio.amateur.antenna)
  • Re: Standing-Wave Current vs Traveling-Wave Current
    ... the series source resistor, where the energy goes becomes ... Total destructive interference in the source ... current is calculated which results in power in the ...
    (rec.radio.amateur.antenna)
  • Re: The Rest of the Story
    ... believe in a conservation of power principle. ... Conservation of energy means that the instantaneous ... The last term is the interference term. ...
    (rec.radio.amateur.antenna)