High-isolation high-gain large-scale MIMO antenna applied to wireless local area network

The invention discloses a high-isolation high-gain large-scale MIMO antenna applied to a wireless local area network. The antenna comprises a first dielectric substrate, a second dielectric substrateand a third dielectric substrate, the first dielectric substrate comprises four symmetrical H-shaped metal patches and four windmill type metal patches, the four H-shaped metal patches are arranged ina central symmetry mode, and the four windmill type metal patches are arranged in a central symmetry mode; the lower surface of the first dielectric substrate comprises four windmill type patches which are arranged in a central symmetry manner; the second dielectric plate is sleeved in the circular through hole of the first dielectric plate at intervals, and a Bluetooth antenna is laid on the surface of the second dielectric plate; the reflector is printed on the upper surface of the third dielectric substrate, and T-shaped slots are formed in four sides of the reflector; the short-circuit arms at the ends of the meta