[Antennas] Coaxial Sleeve Dipole

[W8OKN]

I found the article written by W2OZH back in '91.

Thanks for everyone's help, especially W5YR.

Sean
W8OKN

----- Original Message ----- 
From: "George, W5YR" <w5yr at att.net>
To: "J. Coote" <TSCM at jps.net>; "DavidE Benedict" <iam at pmug.org>;
<w8okn at charter.net>
Cc: <antennas at mailman.qth.net>
Sent: Wednesday, September 08, 2004 10:19 PM
Subject: Re: [Antennas] Coaxial Sleeve Dipole


> Actually, the antenna described here is more commonly termed a "coaxial
> dipole." One half of the radiating element is a tube or rod fed by the
coax
> center conductor while the other half is a length of tubing fed from the
> coax braid but with the coax run up inside the tube to the feedpoint, as
Jay
> described.  These antennas were widely used after WW2 as I recall for
local
> communications on ten meters.
>
> An "open sleeve dipole" or "sleeved dipole" is a different animal. Instead
> of trying to describe it, let me just take the easy way out and refer you
to
> the 20th Edition of the ARRL Antenna Book  which describes the antenna in
> detail. I believe that I have seen it described in older editions as well.
> The antenna was invented in 1946, by the way. This feed method was used on
> at least on HY-Gain Yagi beam.
>
> 73, George W5YR
> Fairview, TX
> w5yr at att.net
> http://www.w5yr.com
>
>
> .----- Original Message ----- 
> From: "J. Coote" <TSCM at jps.net>
> To: "DavidE Benedict" <iam at pmug.org>; <w8okn at charter.net>
> Cc: <antennas at mailman.qth.net>
> Sent: Wednesday, September 08, 2004 7:20 PM
> Subject: RE: [Antennas] Coaxial Sleeve Dipole
>
>
> > Companies like Kreco, DB Products, RFS-Celwave and others make these for
> the
> > commercial world,
> > but the antennas usually include ham bands.  Imagine a groundpane
antenna,
> > droop the radials down until they are parallel the coax, now make the
> > radials into a 1/4 wave sleeve that covers the coax cable.. It's a
dipole,
> > but fed like a groundplane.  Gain about equal to drooping-radial GP
> > antennas.
> > Jay
> > W6CJ/AAR9QM
> >
> > -----Original Message-----
> > From: antennas-bounces at mailman.qth.net
> > [mailto:antennas-bounces at mailman.qth.net]On Behalf Of DavidE Benedict
> > Sent: Wednesday, September 08, 2004 2:15 PM
> > To: w8okn at charter.net
> > Cc: antennas at mailman.qth.net
> > Subject: Re: [Antennas] Coaxial Sleeve Dipole
> >
> >
> > Hmmmm,...
> > I'm curious,... what's a "sleeved" coaxial dipole?
> >
> > David B.
> > w7dbh
> >
> >
> > w8okn at charter.net,Internet writes:
> > >I am looking for a description and/or photos of a 6 meter and perhaps,
10
> > >meter, sleeved coaxial dipole.  Anyone have a website where this can be
> > >found?  How about a QST article.  I am a member of the ARRL.
> > >
> > >I am not interested in a J-Pole design, I have plenty of those to
study.
> > >
> > >Thanks in advance.
> > >
> > >- - -
> > >
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> >
> >
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