View Single Post
  #12   Report Post  
Old November 24th 06, 08:21 AM posted to rec.radio.amateur.antenna
SamSvL SamSvL is offline
external usenet poster
 
First recorded activity by RadioBanter: Sep 2006
Posts: 14
Default CP nearly spherical

"Sal M. Onella" wrote in
:


"SamSvL" wrote in message
...
What would be a good (free space, 1 GHz) antenna to achieve
circular polarizarion with a nearly spherical coverage?

Thanks,


Near 1.5 Ghz the "Patch" antenna works well for me and my GPS
receiver. I THINK it is CP but which rotation??? Some sources
indicate you have to nick alternate corners of the radiating element
to achieve CP. I don't know.

Google .com tells me the GPS patch is available at
http://users.bart.nl/users/plundahl/...e/patchant.htm

or a 2.4 GHz version at http://www.rc-cam.com/gp_patch.htm#GPP_faq

You scale it to your approximate center freq. Good luck


Thanks. But the patch covers only hemisphere (and a little bit more)
and I am looking for the full sphere!

Sam