Dual-polarization low-profile micro base station antenna and array antenna

The invention discloses a dual-polarization low-profile micro base station antenna and an array antenna. The base station antenna comprises a radiation unit, a power distribution board and a reflecting board, wherein the radiation unit includes a first radiation layer and a second radiation layer, and the first radiation layer is coupled to the second radiation layer in a feed manner; a pluralityof trapezoidal slots are arranged in the second radiation layer; the power distribution board is connected with the first radiation layer; the power distribution board includes a first feed port, a second feed port and a third feed port, an electrical length of the second feed port is greater than the electrical length of any one of the first feed port and the third feed port, and the second feedport is an inverted feed port; and the reflecting board is fixedly connected with the power distribution plate. The base station antenna is low in profile, simple in structure, easy to implement, highin one-time intermodulatio