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Art wrote:
"Same question, but now look at distributed inductaance and how that works!" On page 2 of Terman`s 1955 opus is written: "The strength of the wave mmeasured in terms of microvolts per meter of stress in space is also exactly the same voltage that the magnetic flux of the wave induces in a conductor 1 m long when sweeping across this conductor with the velocity of light." Remember reciprocity and the fact that only a perfectly matched antenna can extract as much as half the power in the wave. The antenna`s radiatiation resistance acts as a Thevenin source when receiving and reradiates the other half of the power received but not delivered to the load. The description of magnetic flux inducing signal into a receiving antenna may be the cause of describing transmitting antennas as creating from current in the wire a magnetic flux around the wire which almost simultaneously produces an electric field which almost simultaneously produces a magnetic field ad infinitum. Best regards, Richard Harrison, KB5WZI |
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