TRANSCEIVER USING TECHNIQUE FOR IMPROVEMENT OF PHASE NOISE AND SWITCHING OF PHASE LOCK LOOPPLL

摘要

According to one embodiment, there is a phase locked loop (PLL) that provides a receive frequency to a receive RF part that processes the receive signal, a transmit RF part that processes the transmit signal, and a receive RF part that provides transmit frequency to the transmit RF part And the phase locked loop may provide a transceiver that is controlled depending on whether the receiving RF part or the transmitting RF part is activated. According to an embodiment, there is also provided an oscillation control signal generator for controlling oscillation signals of an RF part corresponding to each of a plurality of antennas, the oscillation signals being generated by voltage control oscillators each operating at the same frequency, Each of the oscillation control signal generators may provide a transceiver that controls the corresponding voltage controlled oscillator so that the oscillation signals do not cross each other (Non-overlapped).