Radio receiver, radio transmitter and impedance control method

摘要

A radio receiver (100) includes a plurality of antenna elements (104,106) for receiving a radio signal from a radio transmitter (102); a setting part (110) changing an impedance (108) of at least one of the plurality of antenna elements according to an instruction signal; a measuring part (116) measuring a change in throughput in a received signal caused due to the change in the impedance; and an instruction part (128) providing the instruction signal which is changed in response to the measurement result. <IMAGE>