At 10:33 AM 5/16/2009, Greg D. wrote: >------------------snip--------- >Pretty much every Wi-Fi antenna I've ever seen is linearly >polarized. The "diversity" antennas are two separate antennas, >usually one vertical and one horizontal, with separate cables going >to two radios. Going circular would seem to be a no-brain >improvement for the Wi-Fi crowd, but I think I've only seen one vendor do it. > >Enjoy the new toy, > >Greg KO6TH
I have toyed with using a comercial medium gain patch array for 2.4 GHz Leos. I would guess that there is no incentive to use circular pol for terrestrial data links. Even reflections and multi-path signals would remain linear. Space com is a totally different deal and circular makes sense if there is room for the CP antenna on the sat. I still have my 85cm offset dish fed with short helix for AO-40 2.4 GHz, but I expect the narrow beamwidth would be lots of trouble for manual tracking 2.4 Leos. That is why I thought to use a 10-dB commercial antenna (also cheap and easy). Is CP a better idea? ...and would one need to reverse the sense on 2.4 GHz very often? 73, Ed - KL7UW _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
