Antenna unit, antenna array, and communication device

An antenna array, comprising a plurality of antenna units,

• wherein the antenna unit comprises:
• a substrate;
• a radome, wherein the radome and the substrate form a cavity;
• a radiating patch, wherein the radiating patch is provided within the cavity and is connected to a side of the radome facing the substrate;
• at least one feed network, disposed within the cavity, wherein the feed network comprises:
• a planar transmission line on a side of the substrate facing the radome, a coupling end disposed close to a side of the radiating patch and having a set gap with the radiating patch, and a longitudinal connection line connecting the planar transmission line and the coupling end;
• wherein the planar transmission line, the longitudinal connection line and the coupling end of the feed network are integrally molded using a sheet metal process, and the feed network is used for coupling feed to the radiating patch;
• a metal grounding plate, provided on a side of the substrate facing away from the radiating patch.

A communication device, comprising an antenna array comprising a plurality of antenna units, wherein the antenna unit comprises:

• a substrate;
• a radome, wherein the radome and the substrate form a cavity;
• a radiating patch, wherein the radiating patch is provided within the cavity and is connected to a side of the radome facing the substrate;
• at least one feed network, disposed within the cavity, wherein the feed network comprises:
• a planar transmission line on a side of the substrate facing the radome, a coupling end disposed close to a side of the radiating patch and having a set gap with the radiating patch, and a longitudinal connection line connecting the planar transmission line and the coupling end;
• wherein the planar transmission line, the longitudinal connection line and the coupling end of the feed network are integrally molded using a sheet metal process, and the feed network is used for coupling feed to the radiating patch;
• a metal grounding plate, provided on a side of the substrate facing away from the radiating patch.