Frequency synthesizer

The utility model discloses a frequency synthesizer, which comprises a synthesis unit, a frequency conversion unit 1, a frequency conversion unit 2, a frequency synthesizer unit and a power supply and control unit, the synthesis unit outputs an emission signal after synthesis through a combiner; the frequency conversion unit 1 and the frequency conversion unit 2 are used for mixing, switching and amplifying signals input by the frequency synthesizer unit and outputting a local oscillator 1 signal and a local oscillator 2 signal required by the whole machine; the frequency synthesizer unit provides a local oscillation source required by the frequency conversion unit and provides a clock signal for the system; the power supply and control unit supplies power to all the units; and time sequence control and frequency configuration are realized according to the instruction of the signal processing extension. According to the utility model, stable work under a high-strength vibration magnitude is ensured by adoptin