IIf you can design a bandpass filter in a RLC or complex circuitry
method then you can design an antenna array that does the same thing.
That is not out of the box thinking.Just remove coupling from the
overall function

Regards
Art
art wrote:
Even Cecil who I suggest with his extra deep physics
education gets mocked sometimes ...

Art, I'm flattered but it is wrong. I have a B.S.
degree in EE from Texas A&M and Masters work in
education from Sam Houston State. I took Balanis'
antenna course at ASU and he and I worked together
on GSM simulations because my real field of expertise
is digital electronics. What I am mocked for is
thinking outside the box, e.g. that the distributed
network model allows RF energy to be tracked through
an antenna system.
--
73, Cecil http://www.w5dxp.com