Single reference clock design for radios used in wireless MIMO communication systems

摘要

A system and method are provided for eliminating the relative phase behavior in the transmitter and receiver radios employed in a wireless MIMO communication system. The method employs a single synthesizer and allows multiple transceivers to function with the same RF reference frequency source and/or IF reference frequency source. Since each transceiver has the same RF and/or IF reference frequency, each transceiver experiences the same phase noise. Thus, the phase noise for the MIMO transmitter is now bounded by the single synthesizer. The same relative phase behavior occurs in the receive portion as well.