The concepts, systems and method described herein provide a scalable beam steering control system having a primary beam steering controller and one or more secondary beam steering controllers to control a direction of a beam generated by an antenna array. The scalable beam steering control system may include a plurality of array blocks, each array block having one or more array elements. The primary controller block may be coupled to at least one array block and include a beam steering module to generate beam steering signals for the one or more array elements of the array block. The one or more secondary controller blocks may be coupled to the primary controller block and at least one array block. In an embodiment, each secondary controller block may include a beam steering module to generate beam steering signals for array elements of at least one array block.