Receiver and wireless communication apparatus

A wireless communication apparatus, comprising:

• a receiver configure to receive a phase-modulated received signal;
• and
• a transmitter configured to transmit a phase-modulated transmission signal,
• wherein the receiver includes:
• a first voltage control oscillator configured to select a certain frequency component included in the received signal to generate a first oscillation signal;
• a second voltage control oscillator configured to generate a second oscillation signal having a first phase;
• a first phase comparator configured to detect a phase difference between the first and second oscillation signals;
• a demodulator configured to perform demodulation processing of the received signal based on the phase difference detected by the first phase comparator, and to generate timing information of a second phase included in the first oscillation signal;
• a second phase comparator configured to extract a second phase component included in the first oscillation signal based on the timing information generated by the demodulator to detect the phase difference between the first and second oscillation signals;
• and
• a first control voltage generator configured to generate a first control voltage for controlling a phase and a frequency of the second voltage control oscillator based on the phase difference detected by the second phase comparator,
• wherein the transmitter includes:
• a modulator configured to generate a modulation signal for transmission;
• a D/A converter configured to convert the modulation signal into analog modulation data;
• a third voltage control oscillator configured to generate a phase-modulated third oscillation signal based on the analog modulation data;
• a third phase comparator configured to detect a phase difference between the third oscillation signal and the second oscillation signal;
• an adder configured to add a signal indicative of the phase difference detected by the third comparator to the digital modulation data to generate phase modulation data;
• and
• a third control voltage generator configured to generate a third control voltage for controlling a phase and a frequency of the third oscillation signal based on an output signal of the adder.