[TowerTalk] 80 meter dipole with open sleeve parasitic

[Rik van Riel]

On 01/20/2011 12:44 AM, W7ZZ wrote:
> N6RY and I (mostly N6RY) designed a very broadband open sleeve 80 dipole, fed with coax, that works very well.  I have remodeled this for 40, 30 and 20 meters.  I would be happy to send anyone the EZNEC files for all versions of the antenna upon request, but I'm leaving for vacation, so it would be ten days or so before you'd get a reply from me.  So far, only the 80 m antenna has been built and is in operation.  the 40, 30 and 20 versions are models only so far.

I wouldn't think 40m is a wide enough band to need such an open
sleeve dipole.

On the other hand, it should be possible to mount a 30m parasitic
element inside a 40m folded dipole, and get both bands on the
same antenna.

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