Microwave and millimeter-wave multipliers are crucial in many high frequency systems such as signal sources, frequency synthesizers and extenders. In mmW communication transceiver system frequency multiplication is nearly the only option feasible to obtain high frequency LO signal. A frequency multiplier generates an output signal whose frequency is a multiple of its input frequency, and can be passive or active.

      Trigiant mmW's frequency multipliers are indeed an integration of multiple functional devices i.e. multiplier/amplifier/filter/voltage regulator/attenuator etc. By carefully choosing active or passive multiplication, linear or saturated amplification as well as proper filtering and attenuation, N-time frequency multiplied output with pure spectrum and appropriate stable power can be achieved.