MULTIPLE INPUT MULTIPLE OUTPUT ARRAY ANTENNA

摘要

A multiple input multiple output array antenna is disclosed, including: a dielectric material board, antenna units, a grounding board and a decoupling network; the antenna units are located at one end of the dielectric material board and distributed symmetrically on both sides of the center line of the dielectric material board to form an antenna array; the antenna units are connected to the dielectric material board via a mechanical part, and to the decoupling network via a spring leaf or a weld joint; the decoupling network is printed on the front of the dielectric material board, and is configured to eliminate the coupling between the antenna units; the grounding board is printed on the rear of the dielectric material board. The antenna units and the decoupling network are small and facilitate to be applied in a small size mobile terminal; the decoupling network adopts a micro strip structure, is easy to be realized and has stable performance; a convex-shaped grounding board is used so as to adjust the impedance matching of the antennas easily and to realize the broadband operation of the antenna.