Four-frequency dual-polarized antenna and wireless communication equipment

The utility model discloses a four-frequency dual-polarized antenna and wireless communication equipment. The antenna comprises a first metal layer, a first substrate integrated waveguide, a second metal layer, a second substrate integrated waveguide and a metal floor which are sequentially arranged from top to bottom, a rectangular ring radiation slot is formed in the first metal layer; a cross-shaped coupling slot is formed in the middle of the second metal layer, rectangular coupling slots are formed in the four sides of the cross-shaped coupling slot respectively, a feed through hole is formed in the middle of the second substrate integrated waveguide, and a circular slot is formed in the position, corresponding to the feed through hole, of the metal floor; the wireless communication equipment comprises the antenna. The antenna provided by the utility model adopts a coaxial feed excitation mode, so that energy is coupled to the upper part from different paths through different coupling slots and radiated