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[TowerTalk] Delta Loop Polarization

To: <>
Subject: [TowerTalk] Delta Loop Polarization
From: (
Date: Sun, 9 Sep 2001 08:35:02 -0600
On Sun, 9 Sep 2001  2 <> writes:
> >
> >On Sat, 8 Sep 2001  "Mike & Coreen Smith" <> 
> writes:
> >> Hi Tom (et al)
> >> 
> >> Always enjoy reading your posts.
> >> 
> >> My Delta loop as I recall is Vertically polarized. I fed it 
> partway 
> >> (I think 1/8WL(?)--been 9 years since I crawled into the thick 
> trees
> >and 
> >> installed> it) along the bottom edge.  
> >
> >Vertical polarization of a Delta Loop results when you feed it
> >1/4 WL down from the apex on one SIDE.  Each side is .33 WL.
> >
> >Horizontal polarization of a Delta Loop results when you feed it
> >at the Apex OR in the middle of the Bottom Wire.  
> >
> >Offsetting the feedpoint from either of these configurations 
> results
> >in both horizontal and vertical components.

> //  I saw a demonstration on an antenna range which showed that a FW 
> loop  does not have both both horizontal and vertical components of
> the  E-field or the H-field.  Cross polarization isolation was equal to

> that  of a dipole.

Polarization of a FW loop *(contained in the vertical plane)*
 is entirely dependent on where it is fed.

It can be entirely horizontally polarized,
entirely vertically polarized,  or a combination
of both, all depending on where it is fed as I
said in my original post.

Tom  N4KG
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