ARRAY ANTENNA

The present invention relates to the technical field of mobile communication antennas, and in particular to an array antenna. The array antenna comprises a phase-shift network and a plurality of radiation devices mounted on the phase-shift network. Each radiation device comprises a dual-polarized oscillator, a feed structure, and a coupling grounding structure. The feed structure is arranged in the radiation device and is coupled with the dual-polarized oscillator for feeding. The phase-shift network comprises a reflecting plate and phase-shift network cavities arranged on the bottom surface of the reflecting plate; the phase-shift network cavities comprise a plurality of groups of strip-shaped cavities; and included angles are formed between the strip-shaped cavities and the reflecting plate. The radiation devices are fixed on one side of the phase-shift network cavities and are electrically coupled with the phase-shift network cavities. Embodiments of the present invention simplify the assembly process, imp