Dual board patch array antenna

A dual board patch array antenna, comprising:

• a radio board including a ground plane, a plurality of feed sources, a plurality of probes and a plurality of patch-type conductive pads, the ground plane being provided on a side of the radio board, the feed sources being provided on another side of the radio board, the probes being provided on the ground plane and passing through the ground plane and the radio board, and being electrically connected to the feed sources, and the patch-type conductive pads being provided adjacent to locations of the probes;
• a first-layer antenna board including a first radiation ground plane, a first radiation surface and a plurality of conductor pads, the first-layer antenna board being provided on the radio board, the first radiation ground plane being provided on a side of the first-layer antenna board, the first radiation surface being provided on another side of the first-layer antenna board, the first radiation surface including a plurality of groups of patch microwave transmission lines, and the conductor pads being provided on the first radiation surface;
• and
• a second-layer antenna board including a second radiation surface, the second-layer antenna board being provided on the first-layer antenna board, the second radiation surface being provided on a side of the second-layer antenna board, and the second radiation surface including a plurality of antenna radiating elements,
• wherein the ground plane forms an extended ground area by forming a ground connection by contacting the patch-type conductive pads with the first radiation ground plane, and the probes pass through the first radiation ground plane and the first-layer the antenna board and contact the patch microwave transmission lines to form an electrical connection, and
• wherein the patch microwave transmission lines are assigned to the antenna radiating elements to serve as a vertically polarized antenna and a horizontally polarized antenna, and the antenna radiating elements contact the first radiation surface through the conductor pads to expand a radiation surface area of the dual board patch array antenna.