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.
Regards
Art



"Richard Fry" wrote in message
...
" wrote:
The shape changes can come from squeezing the balloon (pattern)
horizontally, vertically, or in combination -- which, in antenna
hardware is accomplished by an appropriate array of, and feed system
for, its radiating elements.

Right..... so what creats it, this "squeezing" that you talk about and
from where does this "squeezing force come from in an "appropiate"array?
That's what I was asking not a discussion of what the Yagi array
produces. Why does the lobe narrow?
______________

Narrowing is the natural result of the vector addition of the separate EM
waves radiated from the individual sources comprising the Yagi (or any
other kind of directional array).

RF