Ka band - Microstrip patch array antenna feed problem

Hi all,

I am designing microstrip patch array antenna (arranged in P x Q way) with coaxial feed in Ka band. Because of the patch's tiny size, i suspect the fabrication problem with SMA connectors colliding each other. I verified the available SMA connectors available in internet. The size of the each connector is not suffice to avoid collision.

I am looking for the alternative excitation feeds. Can some one please help me.