Low-profile 5G high-gain MIMO antenna

The utility model discloses a low-profile 5G high-gain MIMO antenna, and belongs to the technical field of 5G MIMO base station antennas suitable for Sub-6G frequency bands, the base station antenna comprises a high-gain MIMO base station antenna, the high-gain MIMO base station antenna comprises an aluminum reflecting plate, a metal oscillator structure and a one-to-three-centimeter plate feed structure, the one-to-three-centimeter plate feed structure is assembled on the upper end face of the aluminum reflecting plate, the metal oscillator structure is assembled on the upper end face of the one-to-three-centimeter plate feed structure, differential feed is adopted, and conversion between balanced feed and unbalanced feed is not needed, so that the height of a feed column is not limited any more, the wavelength far smaller than 0.25 can be achieved, and the feed efficiency is improved. Therefore, the overall height of the antenna is greatly reduced, and the 45-degree inclined dual polarization adopts a four-