On 14 Apr 2006 16:23:55 -0700, "K7ITM" wrote:


John Popelish wrote:
K7ITM wrote:
http://us.gizmodo.com/gadgets/gadget...org-156502.php

Do you have any idea what the performance specs are for this antenna?

No idea at all. A friend knows I'm interested in antennas, and sent me
the link simply as something interesting. Since things are WAY too
quiet here today, I thought I'd post it. ;-)

Hi Tom, John,

The form shown is a variation of what I called the triangle sweep some
8 years ago. I fed it dipole style, they do similar sections in
parallel against a ground plane.
http://www.qsl.net/kb7qhc/antenna/fr...n/3dtri-42.htm
The following page shows one construction out 5 iterations in a
planar, not 3 space form:
http://www.qsl.net/kb7qhc/antenna/fr...weep/index.htm
There are as many variations as could be expected, but calling them
"fractal" strains the definition - especially when the debate got down
to claims that every good conventional antenna design was an hidden
example of fractal principles.

If you drill down through the links, they are challenging Walt's
Quadrafilar design of some 35 years ago. Curiously, one frequency
sweep of the "better" of two models had pretty crummy SWR. I couldn't
find the design goal.

73's
Richard Clark, KB7QHC