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Old March 9th 06, 06:33 PM posted to rec.radio.amateur.antenna
 
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Default Current through coils

Wes Stewart wrote:

Maybe part of the myth is that the antenna must be resonant to work.
Nothing could be further from the truth.


Has the radiator current distribution changed? No. Does the inductor
in the L-network "make up" some number of electrical degrees in the
radiator? Not from my viewpoint.


I think there are two problems:

1.) Cecil wants everyone to start using reflection wave models to
analyze every antenna system in the world.

2.) Many people think a very short monopole antenna that is resonant is
still 90 electrical degrees long, and that the inductor makes up the
missing number of degrees, and the current taper across that inductor
is some form of sine shaped curve.

Cecil is free to use whatever tools he likes. He doesn't work for me,
and (thank God) I don't have to work for him! What he wants me or
others to do is a moot point.

I am concerned about the commonly held but very incorrect view that
current travels through an inductor turn-by-turn, and that a loading
inductor somehow shifts the phase of and/or level of current to "make
up for missing degrees".

My only concern is people not understanding how an inductor and short
antenna actually behaves. That problem is worth attention.

73 Tom

 
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