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November 30th 10, 12:42 AM
posted to rec.radio.amateur.antenna
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antenna physics question
On Nov 29, 4:42*pm, K1TTT wrote:
On Nov 28, 9:32*pm, Art Unwin wrote: I have been struggling with this for some time so maybe somebody can set me straight. We wind a flat plate spiral antenna and we get to a point where the center medium becomes saturated with flux. Now I add even more coils. What action does that precipitate? I would like to think that the Meissner effect *( perfect diamagnetism) then takes over and swamps the external magnetic field as with a superconductor ( ie opposite to that of a paramagnetic) The skin effect is thus removed allowing the current flow to the surface by allowing the atomic structure to relax, and add to the current already in place to allow fully efficient radiation as it now lies outside the confines of conductor resistance. This is my effort in determining what is it that drives the constant impedance attributes of a meander type array? Regards Art what is the 'medium' that gets saturated? Air |
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