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Dipole Antenna Directivity

 
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akhilchangani
Antenna-Theory.com Newbie


Joined: 01 Mar 2011
Posts: 1

PostPosted: Tue Mar 01, 2011 1:02 pm    Post subject: Dipole Antenna Directivity Reply with quote

Hi Guys/Gals,

Was trying to optimize a dipole antenna, was trying to figure out how the graph was created on figure 6 of the dipole antenna section.

I am trying to investigate the different relationships between length and how it affects the antenna for a further study in using dipoles for an array-configuration for beamforming.

I need to replicate a graph like Fig.6 but do not know where to get the formula for it, is it a standard formula ?

Is it something I can use and then reference it, would appreciate if the author of the site could let me know about this.

Cheers in advance !
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bigSteve
Antenna Wizard


Joined: 14 Mar 2009
Posts: 265

PostPosted: Tue Mar 01, 2011 9:15 pm    Post subject: Reply with quote

I think the exact equation is some complicated monstrosity out of Balanis' antenna theory book.

It would only hold in the theoretical sense (no feed effects, infinitely thin wire, infinitely thin gap, etc). So it's more illustrative than anything else....I'd recommend fitting a straight line to the curve and calling it good.
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