Look up the Turnstile antenna on the web and you should see the
radiation pattern of a 90 degree phase shift. There is also a small
amount of gain over a single dipole.
Most examples are for VHS, but they can be scaled up.
KD5RPO

Harry Gross wrote:
Thanks for all the input. I'll be playing with the idea for the next
few weeks/months, and I'll let you all know how it works out.