[MrDrMcCoy]

My radio knowledge is not up to par, but couldn't a phased array antenna setup allow for friendlier form factors?

[nine_k]

But usually it is a phased-array setup, or it seems to be, with a row of antennas.

Another setup is circular or semicircular. I suppose it allows for a more uniform directional diagram across the entire 360°, because a straight phased array has harder time emitting sideways.