Densified multi-dimensional massive mimo unit

A system comprising:

• an antenna package that includes:
• transmit receive point (TRP) antenna boards layered such that a front of each respective TRP antenna board faces the same direction;
• at least one printed circuit board (PCB) including multiple antenna-facing sides on which the TRP antenna boards are attached, respectively;
• front-end circuits that are attached to the at least one PCB and that are electrically coupled to the TRP antenna boards, respectively;
• and
• at least one heat sink attached to the at least one PCB;
• wherein each of the TRP antenna boards includes:
• a rear that is opposite to the front,
• a signal-propagation side that includes a two-dimensional (2D) multiple-input multiple-output (MIMO) antenna array and extends from the front to the rear, and
• a second side that faces toward the at least one PCB, is opposite to the signal-propagation side, and extends from the front to the rear;
• and
• a reinforcement structure that includes at least one mounting clamp attached to a rear of the package and configured to attach to a vertical pole positioned adjacent to the rear of the TRP antenna boards.