" wrote
Great! I would disagree with respect to "any other type of directional
array' but I would like a further insight to the mechanics of vector
array that produces this phenomina. I would like to reproduce this
effect else where if I could.
___________

Suggest you get this background from a good read of just about any of the
many antenna textbooks available. It's a bit much to deal with in a NG
forum.

RF