TRANSMITTER-RECEIVER APPARATUS

摘要

A transmitter-receiver apparatus comprises a plurality of transmitter-receiver blocks including respective phase sync oscillators for generating local oscillation signals used for down-converting respective RF signals received by a plurality of antennas or local oscillation signals used for up-converting baseband signals. The transmitter-receiver apparatus further comprises a loop band detector circuit that detects the difference between the loop bands of the phase sync oscillators included in the respective transmitter-receiver blocks and that generates a control signal used for causing the loop bands of the respective phase sync oscillators to coincide with each other.