[amsat-bb] Re: Fractal Antennas?

Edward Cole kl7uw at acsalaska.net
Sun Mar 14 12:39:51 PDT 2010

 From memory, I believe the advantage that fractal antennas provide 
is very wide bandwidth and reduced size for performance.  Desirable 
characteristics for hand-held communications.  But as far as 
radiation efficiency???

73, Ed- KL7UW

At 07:08 AM 3/14/2010, Anthony Monteiro wrote:
>Dear friends,
>See the article by Steven Best in the June 2003
>IEEE Antennas and Propagation magazine. His
>analysis shows that they do not work any better than
>any other small antenna. I attended a presentation on
>his findings at an IEEE antennas society meeting and he
>makes a very persuasive case.
>There are those who argue that his analysis is not perfectly
>fair (i.e. those trying to SELL these antennas) but I
>have yet to see any technical analysis that shows otherwise.
>Tony AA2TX
>VP Engineering
>At 09:18 AM 3/14/2010, Nigel Gunn G8IFF/W8IFF wrote:
> >I beleive fractal antennas have been "ignored" because of patent issues.
> >
> >On 13-Mar-10 22:26, Dave Marthouse wrote:
> > >              This seems almost too good to be true.  Keep in mind
> > that I'm not an engineer.  Maybe this technology could be used for
> > future amateur satellites, wider bandwidth, more gain, less space, etc.
> > > http://www.fractalantennas.com/
> > >
> > > Dave Marthouse N2AAM
> > > dmarthouse at gmail.com
> > > _______________________________________________
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73, Ed - KL7UW, WD2XSH/45
  BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
500-KHz/CW, 144-MHz EME, 1296-MHz EME
DUBUS Magazine USA Rep dubususa at hotmail.com

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