Patent ID: 7848435

Claim:
An N×N multiple-input multiple-output (MIMO) transceiver comprising: a plurality of transceivers, each comprising: at least one transceiver circuit; an oscillation unit which is configured to generate a differential signal which is supplied to the at least one transceiver circuit; a plurality of buffers, which are mounted in a bypass line between the at least one transceiver circuit and the oscillation unit and are configured to amplify and output the differential signal or input and amplify the amplified differential signal; and a buffer control unit which is configured to control the plurality of buffers to output or input the amplified differential signal, wherein the plurality of buffers comprise an output buffer which is mounted in the bypass line between the at least one transceiver circuit and the oscillation unit and which is configured to output the amplified differential signal, and an input buffer which is connected in parallel with the output buffer and which is configured to input the amplified differential signal, wherein, on a path connecting the oscillation unit and the at least one transceiver circuit, a buffer switch is mounted between the output buffer and the input buffer and is configured to turn on and off a connection between the output buffer and the input buffer.