AN ANTENNA APPARATUS FOR LOAD-MODULATED BEAMSPACE MIMO SYSTEM

摘要

A load-modulated beamspace multiple input multiple output (MIMO) antenna device according to an embodiment of the present invention comprises: a conductive substrate; a resin insulation layer which is formed by covering one or both surfaces of the conductive substrate; a plurality of slots which are formed by a portion of the conductive substrate which is not covered by the resin insulation layer to be exposed; a plurality of through-holes which are formed to penetrate the conductive substrate and the resin insulation layer; and a plurality of radiators which are formed on the resin insulation layer, wherein power is supplied from a single RF power source via the through-holes. The load-modulated beamspace MIMO antenna device according to the present invention is an antenna device used for a load-modulated beamspace MIMO system which supplies power to a plurality of antennas by sharing single RF power and forms a radiating pattern corresponding to a transmission signal by controlling an admittance loaded on respective antennas. According to the present invention, coupling among antennas can be minimized by decreasing correlation among radiating patterns due to a plurality of antennas. Also, operation stability is improved by reducing effects by a peripheral environment, and it is possible to integrate a plurality of antennas in a small space.