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

摘要

Disclosed is a wireless transmission apparatus including at least one parasitic antenna and at least one active antenna for a beam space MIMO system. The wireless transmission apparatus includes a modem circuit for outputting a signal to be transmitted by multiple stream transmission or beamforming, a control circuit for selectively applying a control signal for generating a multiple stream signal or a beamforming signal according to the transmission mode of the modem circuit, and an impedance loading circuit which loads impedance corresponding to a plurality of parasitic antennas to transmit the beamforming signal according to the applied control signal, or loads impedance corresponding to one or more active antennas to transmit the multiple stream signal.;COPYRIGHT KIPO 2017