omnidirectional circularly polarized FM antenna

[Ric Werme]

> <<On Sun, 19 Nov 2006 22:31:07 -0500 (EST), Ric Werme <ewerme@comcast.net> said:
> 
> > Finally, what does an omnidirectional CP transmitter antenna look like,
> > anyway?  The vertical component is no problem, of course, but does the
> > horizontal part need some serious compromises?

> On the FM side, some of them use separate H and V sections, and some
> of them use an integrated circular design.

Thanks for looking at more of the antennas than I did, I did read something
about multiple panels can be nearly omnidirectional,
http://www.shively.com/ds-6016p.php is that design and is +/- 2db.

I guess my mental model for the ring shaped radiators will include the
fact that the round shape makes a width much less than a dipole would
be.  That means there's not enough space for signals to cancel to
create lobes ala directional antennae.  The energy has to get out, and
it does so omnidirectionally.

	-Ric Werme