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![]() wrote: It is the stray capacitance from the inductor to the outside world that allows any difference in current. Not the standing waves, not the missing area of antenna. You are using standing wave current to try to prove your concepts are valid. If you don't take time to understand standing wave current, you will never correct those misconceptions. Standing wave current phase contains no phase information. Therefore, standing wave current phase cannot be used to measure the phase shift through a wire or a coil. The only phase information in a standing wave current is in the magnitude which roughly follows a cosine function distorted by the fields in the loading coil. If the current at the bottom of the coil is 1.0 amps and the current at the top of the coil is 0.7 amps, the phase shift through the coil is *roughly* arc-cos(0.7) = ~45 degrees. As Gene Fuller says, there's no phase information in standing wave current phase. All the phase information is embedded in the magnitude. That's easy to see from the I(x,t) = Io*cos(kx)*cos(wt) equation for standing wave current. It's also easy to see from: http://www.qsl.net/w5dxp/travstnd.GIF plotted from EZNEC data. -- 73, Cecil, W5DXP |
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