JIMMIE wrote:
On Dec 7, 3:18 pm, Art Unwin wrote:
On Dec 7, 1:27 pm, JIMMIE wrote:





On Dec 6, 5:44 am, EI5DD wrote:
Would anyone have a copy of an article from either 73 or CQ magazine
somewhere around the 90's which contained an article on how to
construct a Fractal Quad antenna for 10 metres. The design was based on
work done by Nathan Coen N1IR.
Steve (EI5DD)
--
EI5DD
Folding wire in a fractal pattern to shorten an antenna is probably as
good as any other way of folding wire. Maybe better than some.
JImmie
Correct, Maxwell's laws referes only to the distributed loads which
remain in place no matter what you do to the wire. For way to long the
notion of straight radiators have been staked into the folk lore of
radio
by those who oppose change. Actually it was present members of this
particular group who attacked his ideas as a false technology without
presenting proof, only derision. A line eagerly joined by the pseudo
experts from the CB era, some of which remain today.- Hide quoted text -

- Show quoted text -

Antenna physically shortened by bending the wires is certainly not new
to amateur radio as any ham with a small yard will atest. To say that
these antennas will work without degradation when compared to their
unaltered counterparts is just wrong.


That's the point I don't get, Jimmie. I don't know that anyone is
saying these antennas don't work. I think its a matter of just how well
they work. The answer is often "not very".

Yes, we can get a lot of things to radiate. Wires folded in a fractal
pattern will radiate, so will wires folded in a random pattern. Woe is
the day someone gets a patent on "random".

Antennas that are a tuned circuit on top of a length of coax will
radiate - at least the coax will.

So what? When I was a kid I made a little model of a radio telescope
antenna out of copper wire and Aluminum foil. It was about 12 inches in
diameter. Took a wire and attached it to an old radio. It worked better
than no wire attached. Not that I'm going to promote it as a good
antenna though.

- 73 de Mike N3LI -