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On Dec 29, 1:14*pm, Cecil Moore wrote:
Art Unwin wrote: So one acknowledges the presence of a capacitor at the end of a radiator Let's use IEEE definitions to avoid confusion. A "capacitor" is a physical component that exhibits capacitance. Capacitance can be exhibited without the existence of a physical lumped component. At the end of a radiator, we would have a distributed capacitance, not *a* lumped capacitor. No Cecil. We are at the end of the radiator and there is no eddy currents in front. Ther apparently is a gap between the outside of the radiator end which some see as a capacitor ( tho I see nothing that suggests that as yet) If one accepts a capacitor as distributed then I will go along with that but that alone cannot stop the flow of current. Regards Art And actually, it is not only at the end since it is "distributed". In fact, an antenna element can be modeled as a distributed RLC network where the R includes all "losses" including radiation. -- I would love to see that circuit in its entirety since it will show the points of collision 73, Cecil *http://www.w5dxp.com |
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