Planar Dipole MIMO Array Antenna for Mobile Robot Communications at 5.6 GHz

Reliable robot communications is important for robot teamwork. Reliable communications is one of the main key which can be provided by multiple-input multiple-output (MIMO) technique. In MIMO antenna design, correlation is the main concern of MIMO antenna since each antenna should work independently. This paper proposed array antenna at 5.6 GHz with 4 planar dipole elements with very low correlation. These antennas are arranged on azimuth plane. We conduct computer simulation of antenna design and simple MIMO communications system. It is confirmed by simulations of communications system considering correlation between antennas that the proposed antenna has very low correlation and very close performance compared to ideal MIMO antenna.