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On *The voltage is
indeed real, as i have said. *you can measure the 'standing' wave voltage, that has been known for a long time... but the effects are NOT due to power in standing waves.- OK, that was the least word infested post I can find... 1. A standing wave is not 'standing' in time... It phase rotates at the same rate as the excitation frequency... If the phase is rotating then V and I are changing - else Feynman is rotating in his grave... To do so requires the surface electrons at that point on the line to oscillate back and forth or whatever the heck surface electrons do at rf frequency... To excite these electrons from one energy state to another requires power/energy/joules/whatever-you-want-to-call-it... 2. It is real because I can measure it with a volt meter and I can extract power from it with a lamp, simultaneously.. Also: it will perforate the insulating jacket on the line if the power level is high enough... I used to maintain a herd of 100KW RF generators, and they would blow a hole through the side of a quarter inch thick copper bar in an instant when the load failed in my youthfull ignorance, I thought it was the standing wave RATIO that blew the line, silly me ... Try this thought... A Tesla coil (automobile spark coil) with no load on the output is all standing wave voltage and no current - so according to some has no power... Touch your finger to it... Also try: If an open ended line has 100.000 volts of DC on it, the standing wave DC contains no power because the current is zero? And, for whoever it was accused me of bashing someone - reread my post, carefully.... I absolutely do not bash or flame anyone... cheers ... denny |
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