a method for constructing a wireless communications apparatus includes providing a printed circuit board having a mounting surface . an antenna is mounted onto the mounting surface in an orientation that is perpendicular to the mounting surface . a first subassembly is formed by placing the pcb with mounted antenna into a top side of a bracket . the second subassembly is formed by placing an endcap component over the antenna , the endcap encasing the antenna , and snapping the endcap component into the bracket to hold the endcap component to the bracket . the snapping comprises inserting hooks on the end cap component into recesses on the bracket .