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September 10th 15, 12:27 PM
posted to uk.radio.amateur,rec.radio.amateur.antenna
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The nature of Free Space (Once called, "The Lumeniferous Aether")
What is the nature of free space such that it requires antennae to be at
least 1/4 wave before accepting radiation efficiently? Is it that some form of electric "twist" must be appled to Free Space, and that the maximum "twist" occurs with 1/4 cycle of a quarter wave? Were there to be two short antennae closely spaced, but fed 90 degrees out of phase, wouldthat result in efficient radiation? What if they were spaced by 1/4 wave but with the feeders completely screened from Free Space, or does there have to be all fractions of antnna betwen the two extremes? |
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