Mm wave RF receiving/transmission device

The invention comprises a transmitting device which comprises a millimeter wave harmonic up-converting module, a millimeter wave fixed amplitude-amplifying module and a millimeter wave signal modulation mixing module, and a receiving device which comprises a millimeter wave harmonic down-converting module and a millimeter wave fixed amplitude-amplifying module. The transmitting device can generate a single pulse modulation signal and a mixed pulse modulation signal, which are used for testing the indexing of receiving and transmitting parameters of a millimeter wave radar and complicate communication signals; the millimeter wave fixed amplitude-amplifying module of the transmitting device can improve the temperature stability of the output signal in amplitudes at the temperature ranging from -10 DEG C to 60 DEG C, and is convenient for conducting precise measurement on a radar receiver; the millimeter wave signal modulation mixing module can realize the analog of Doppler echo signals of the millimeter wave ra