RF transceiver module and millimeter-wave FMCW radar sensor using the same

摘要

Provided are a radio frequency (RF) transceiver module having an improved connection structure between main components and capable of improving reception sensitivity, and a millimeter-wave frequency modulated continuous wave (FMCW) radar sensor using the same. The RF transceiver module includes: a transmitting unit having a power divider dividing a modulation signal generated by a voltage-controlled oscillator (VCO), amplifying the modulation signal, and radiating the amplified modulation signal through a transmitting antenna; a balanced mixer unit up/down-converting the modulation signal output from the power divider using a local oscillation signal output from a local oscillator, and outputting converted first and second signals; and a receiving unit down-mixing an external signal received through a receiving antenna with the first signal using a down frequency mixer, mixing a down-mixed third signal with the second signal using an intermediate frequency (IF) mixer, and outputting the mixed signal.