On Mon, 17 Apr 2006 13:56:19 -0500, "Hi" no@spam wrote:

This is a horizontally powerized omni slot antenna.
http://tinyurl.com/kbwkf
Does anyone know if its possible to make a
vertically polerized omni slot antenna?
Matt

One can be made, but the slots have to be
oriented at a slant on the waveguide. The
trick is to make alternate slots radiate
the horizontal component of their slanted
polarization out of phase but have the
vertical component radiated in-phase. This
is a bit tricky and requires a detailed
knowledge of the standing-wave pattern inside
the waveguide at the frequencies of interest
(and therefore is left as an exercise for the
student).

Jim, K7JEB