A wireless communication node and method therein for generating beamformed signals by means of backscattering in a wireless communication network are disclosed. The wireless communication node receives a radio frequency signal at a plurality A of antennas. Each antenna is coupled to one of a number of impedance matrices by one of a plurality A of switches. The wireless communication node generates a first baseband signal based on data symbols to be transmitted in a baseband signal generator. The states of each switch are controlled based on its specific switch control signal such that each antenna impedance is selected among a number M of impedances, and thereby the received RF signal at each antenna is modulated by the first baseband signal with its specific phase and reflected. The beamformed signals are generated by the plurality A of antennas by reflecting the modulated RF signals from each antenna.