Log-Periodic Antenna Design
 

In article ,
says...
On Fri, 05 Dec 2008 19:32:03 -0800, Chuck Olson wrote:
"Chuck Olson" wrote in message

"Rich Grise" wrote in message
...
Or, does anyone have a UHF-TV log-periodic design that they'd share?
:-)

Sorry about the filename not working. This one should work:

http://tinyurl.com/5qxh9u

Too late! ;-) I've already made the "coat hanger" four-bay bowtie, but
with weld rod rather than hangers. ;-)

It was on youtube:
http://www.youtube.com/watch?v=EWQhlmJTMzw

Thanks!
Rich



Yep, it's all about the antenna. Hell, even a dipole tuned to the
midpopint of the band used for HD would get better performance.

Log-Periodic Antenna Design , jihg gain smalll size wide bandwidthnew technology
 

mpm wrote:
On Nov 21, 7:04�pm, Art Unwin wrote:

On Nov 21, 5:53�pm, Rich Grise wrote:






On Thu, 20 Nov 2008 16:58:46 -0800, Roy Lewallen wrote:

Rich Grise wrote:

On Thu, 20 Nov 2008 15:30:26 -0800, Roy Lewallen wrote:

GregS wrote:

Ever hear of the BOW TIE. Its a sort of Fractal antenna. Having a wide
band. It could be improved by making it a full fractal.

That's interesting. In what way(s) is it improved by making it fractal?
How much is the improvement? Can you point me to a reference about this
which gives some quantitative data?

http://www.google.com/search?hl=en&q...s%22&btnG=Goog...

Sorry, it doesn't. Among the claims, trolls for investors, and
testimonials, where is the quantitative data showing that a fractal
antenna is in any way better than a bow tie, in what ways, and how much?
In other words, exactly where is the evidence on which you based your
statement?

The only "evidence" I have is a "testimonial" by the guy who invented it,
on some PBS show. And they claimed that that's how they pack so much
antenna into a box the size of your thumb. ;-)

And, having a passing familiarity with fractals, it just sounds eminently
plausible to me. :-)

Cheers!
Rich

Their advertising budget suggest that they are getting sales and they
do radiate
to the satisfaction of their users �They don't have lumped loads so
where ';s the beef?
Art- Hide quoted text -

- Show quoted text -


It's a folded, folded, folded, folded, folded,... n(folded) unipole
antenna!! ;-)
The highest gain in smalllest size would b obtained by using focused
wave antenna antenna, inhelical mode basd upon your description

go here and contact me diectly for fetails may have smaple or can
fabricate based upn your specifiation. Nothig like it on the market!
Patent is new and full marketing budget crippled along with creit maret
so lauch delayed. So its business ti business right here, Good news is
the you get to speak with invetor/builder an producer i on emai :-)

www.fwt.niat.net
short power point here

http://www.youtube.com/user/LVMarc

As an independant producer and start-up would be very responsive and
appreciative of your support and queries. Can aslo locate front end
amplifiers inside anna eleiminating front connector loss. that last .035
db is hard to obtain any othe way with a connector beween any antenna
and front end so we put front end inside anteanna substrate and your
system will out perofrm all otthers!

Best Regards

Marc Popek