TRANSMISSION APPARATUS PERFORMING SELECTIVE BEAMFORMING USING MULTIPLE STREAM TRANSMISSION CIRCUIT AND TRANSMISSION METHOD THEREOF

摘要

A wireless transmission apparatus comprising at least one parasitic antenna and at least one active antenna for a beam-space MIMO system is disclosed. The wireless transmission apparatus includes a modem circuit for outputting a signal to be transmitted through multiple stream transmission or beamforming, a control for generating a multiple stream signal or a beamforming signal according to a transmission mode of the modem circuit, A plurality of parasitic antennas for receiving the plurality of parasitic antennas and a plurality of parasitic antennas for receiving the plurality of parasitic antennas and a plurality of parasitic antennas for receiving the plurality of parasitic antennas, And an impedance loading circuit for loading an impedance corresponding to the active antenna.