LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #10   Report Post  
Old November 21st 08, 04:19 PM posted to rec.radio.amateur.antenna,sci.electronics.design
external usenet poster
 
First recorded activity by RadioBanter: Nov 2007
Posts: 26
Default Log-Periodic Antenna Design

In article tonline, 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...oogle+ Search
&aq=f&oq=

Hope This Helps!
Rich


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?

Roy Lewallen, W7EL


I don't have data. I think the home made TV antenna in the video, is very much like a bow tie,
and could have better bandwidth by making the elements different lengths. The gain factor
is going to be narrow band since the feed length is constant. I would have also used 12ga
copperweld or solid copper. You can also get closer to fractal by using many more different
sized elements.

greg


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Log periodic antenna design JIMMIE Antenna 14 June 29th 07 06:14 PM
radiation pattern of log-periodic antenna [email protected] Antenna 4 March 6th 07 01:37 AM
FA log periodic outdoor scanner antenna jeff Scanner 0 February 26th 06 02:13 AM
FS WiNRADiO AX-31B Planar Log-Periodic Antenna HK Swap 0 May 30th 05 02:26 PM
FA: WiNRADiO AX-31B Planar Log-Periodic Antenna Bill Crocker Scanner 3 January 18th 04 03:31 AM


All times are GMT +1. The time now is 06:49 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017