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Old January 13th 09, 10:32 PM posted to rec.radio.amateur.antenna
Art Unwin Art Unwin is offline
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Default Contrary current flow within a radiator

On Jan 13, 3:02*pm, "Frank" wrote:
"Art Unwin" wrote in message

...



What diametric ratio must a fractional wave length radiator be to
allow contrary current flow thru it's center. ?
Diameter / wavelength = 1.0, * *0.5, *0.1. * * 0.001, * * *0.0001,
0.00001,...?
Regards
Art


Art, Did you look at my link below? *What does "diametric" mean?

Ansoft's (www.ansoft.com) "Maxwell" is a "Finite Element Modeling"
(FEM) program which, among other things, can accurately produce
a graphical representation of the current distribution in a cylindrical
conductor. *See examples at:http://www3.telus.net/nighttrainexpr...in%20depth.htm
These graphs are reproduced from an article in the November/December
issue of QEX magazine, pp20 - 29, by Rudy Severns, N6LF.

73,

Frank


No, but I will now. First I will look up the word "finite" and
"finite"
Just now going out for dinner
Re diametrics, I was referring to the ratio of diameter with respect
to wavelength
( I am assuming that skin depthg is not limitless.)
Best regards
Art