[amsat-bb] RE: GOES patch feeds, later...

["Bill Acito" <w1pa@xxxxxxxxxxx>]

{snip}
The problem is it's my older design that used the nylon support screws
at
the ends of the patch.  The Ends are the high-current (radiating) part
of
the patch, and therefore are most sensitive to dielectric loading, etc.
So
the short answer, is that I am afraid that it
isn't very reproducable without having a network analyzer or at least
some
kind of signal source at 1691 and a directional coupler or SWR meter at
that
frequency to tune (tweak) the patch.
(end snip)

I always wondered if this was why K3TZ had trouble seeing circular
polarization off his patch design...  the dielectric spacers on two
opposite sides of his patch?

http://www.qsl.net/k3tz/images/k3tz_patch6.jpg

Patch guru's?

Bill
W1PA

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org