Microwave generation device and generation method

The embodiment of the invention discloses a microwave generating device and a microwave generating method. The microwave generation device comprises a frequency stabilized laser, an optical frequency comb laser, a frequency division unit and a microwave signal output unit; the frequency stabilized laser is used for outputting first laser of a first frequency and second laser of a second frequency; the optical frequency comb laser is used for outputting a first optical frequency comb; the first laser, the second laser and the first optical frequency comb are transmitted to a frequency division unit, the frequency division unit performs frequency division to a microwave band according to the optical frequency, and the repetition frequency of the optical frequency comb is locked; and the optical frequency comb laser outputs a second optical frequency comb with locked repetition frequency, and the second optical frequency comb transmits the second optical frequency comb to the microwave signal output unit to exci