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VSWR doesn't matter?
Roy Lewallen wrote:
What remains for the people promoting the notion of waves of average energy propagating like voltage and current waves to show is how their theories can explain the resistor dissipation in the very simple circuit I used. Zero power dissipation in the source resistor is prima facie evidence of "total destructive interference" in the direction of the source as described by Hecht on page 388 of "Optics", 4th edition. You see, optical physicists don't have the luxury of dealing with voltages and currents. They are forced to deal with power densities and those irradiance equations work just as well for RF as they do for light. The power equation describing the dissipation in the source resistor is: Pfor + Pref - 2*SQRT(Pfor*Pref) = zero which is in perfect agreement with your calculations. -- 73, Cecil http://www.w5dxp.com |
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