Roy Lewallen wrote:
tom wrote:

Jeff

I hate to support Art, but he did give the endpoint data in picture6.
I modeled it with eznec+ 5 and the pattern and gain are reasonably
close to what he shows in the other "pictures". Close considering he
appears to be using mininec and if he includes conductor loss and real
ground it's off a fair amount (I show 9.36 dBi gain). I didn't run
circular, and doubt that it has much in the way of circularity, which
is kind of obvious from the elements. Even though they are skewed in
a way which he probably patented.

tom
K0TAR

Picture6 data show equal horizontal and total gain, which means it's
purely horizontally polarized in the direction of the analysis. That's
also consistent with equal CW and CCW (or right and left hand) circular
components, which mean polarization (again in the direction of the
analysis) is purely linear.

Roy Lewallen, W7EL

Thanks Roy. I was rushed at the time and also didn't care too much,
since it was obvious that even though the elements weren't parallel or
on quite the same centerline, they were very close to it. He picks at
nits when he says his antennas are different. I could get similar
results from a good windstorm.

tom
K0TAR