Patent ID: 7636554
Filing Date: 2009-12-22
Classification: H03D,H04B

Abstract:
1. A multiple-input multiple-output (MIMO) radio transceiver on a single semiconductor integrated circuit, comprising: a receiver comprising at least first and second receiver circuits each configured to process a signal from a corresponding one of first and second antennas, the first receiver circuit configured to downconvert a first receive signal detected by the first antenna to produce a first baseband signal, the second receiver circuit configured to downconvert a second receive signal detected by the second antenna to produce a second baseband signal; a transmitter comprising at least first and second transmitter circuits, the first transmitter circuit configured to upconvert a first baseband transmit signal to generate a first radio frequency signal that is coupled to the first antenna for transmission, the second transmitter circuit configured to upconvert a second baseband transmit signal to generate a second radio frequency signal that is coupled to the second antenna for transmission; a first power amplifier configured to amplify the first radio frequency signal; a second power amplifier configured to amplify the second radio frequency signal; a first filter shared by the first transmitter and first receiver circuits; and a second filter shared by the second transmitter and second receiver circuits.