Smart antenna idea

Hi everyone,

I have some question on the possibility of making a smart antenna using
USRP board.
Before I really go into the sea (I don’t want to drain), I want like to
get some
help see if it is even possible.

It operates at 2.4GHz. We already have the 2.4GHz daughterboards.
But I was wondering if we want to do 4 elements (4tx and 4rx at the same
time).
Can we use two USRP board and somehow combine the signal somewhere (may
be
using another FPGA or laptop) to beamform?

any idea would help. Thanks,
Candy Yiu