Multi-mode broadband patch antenna array for millimeter wave mobile phone terminal

The invention discloses a multi-mode broadband patch antenna array for a millimeter wave mobile phone terminal, and belongs to the technical field of wireless communication and antennas. The antenna array comprises a metal rectangular patch, a metal U-shaped patch and a metal microstrip feeder line which are arranged on the front surface of a dielectric substrate, and a metal floor arranged on theback surface of the dielectric substrate. An oval groove is formed in the center of the metal rectangular patch, and the metal U-shaped patch is arranged in the oval groove. The center line of the metal U-shaped patch coincides with the center line of the metal rectangular patch. The metal microstrip feeder line is connected with the long side of the metal rectangular patch, and a rectangular groove is dug in each of the two sides of the joint of the metal microstrip feeder line and the metal rectangular patch. The metal microstrip feeder line is connected with an external feed probe, and thefeed probe is used for ex