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element lengths of an Antenna

 
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btb4198
Antenna Theory Regular


Joined: 19 May 2011
Posts: 20

PostPosted: Thu May 19, 2011 3:59 pm    Post subject: element lengths of an Antenna Reply with quote

what about L = 468/f MHz?

To calculate the length (in feet) of a quarter-wavelength vertical antenna
Divide 234 by the antenna’s operating frequency (in MHz) [234/f (in MHz)], is that right ?

Also does the thickness of the wire matter?
what about what kind of wire it is does the matter?
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Schubert
Antenna Wizard


Joined: 08 Apr 2009
Posts: 161

PostPosted: Thu May 19, 2011 6:33 pm    Post subject: Reply with quote

Just remember: Lambda = c/f

c = speed of light = 3 *10^8 m/s
f = frequency of operation

and the length you want should be L=lambda/4=c/4f

Fatter wire is better, but not too important. Any metal will work fine (copper, aluminum, tin foil, whatever).
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btb4198
Antenna Theory Regular


Joined: 19 May 2011
Posts: 20

PostPosted: Thu May 19, 2011 10:56 pm    Post subject: Reply with quote

so what is L = 468/f MHz used for ?
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