Antenna boards and communication devices

A handheld communication device, comprising:

• an antenna module, including an antenna board and a die coupled to the antenna board;
• and
• a circuit board electrically coupled to the antenna module,
• wherein the antenna board includes:
• a ground plane,
• an antenna feed structure,
• a stack of antenna patches parallel to the ground plane,
• an antenna patch of the stack of antenna patches in a layer parallel to the ground plane, wherein the antenna patch is closer to the antenna feed structure than all other antenna patches of the stack of antenna patches,
• a conductive ring around the antenna patch, and
• conductive posts around the antenna feed structure,
• wherein the conductive posts are in conductive contact with the ground plane and with the conductive ring, the antenna patch is an only antenna patch within a perimeter of the conductive ring, and the antenna feed structure is not coupled to the antenna patch by a conductive material pathway.

An antenna board, comprising:

• an antenna feed substrate including an antenna feed structure, wherein the antenna feed substrate includes a ground plane;
• a stack of antenna patches parallel to the ground plane;
• an antenna patch of the stack of antenna patches parallel to the ground plane, wherein the antenna patch is closer to the antenna feed structure than all other antenna patches of the stack of antenna patches, and wherein the antenna patch is spaced apart from the antenna feed structure and no portion of the antenna feed structure is in conductive contact with the antenna patch;
• a ring comprising metal around the antenna patch, wherein no other antenna patches of the stack of antenna patches are surrounded by the ring;
• and
• pillars comprising a conductive material around the antenna feed structure, wherein the pillars are connected to the ground plane and the ring.