A frequency multiplier is a circuit that generates an output signal whose output frequency is a harmonic of its input frequency. Frequency multipliers consist of a nonlinear circuit that distorts the input signal and consequently generates harmonics of the input signal. An input filter and output resonance circuit select the desired harmonic frequencies and remove the unwanted fundamental and other harmonics from the output.
The block is fabricated on iHP SiGe BiCMOS 0.25 um (SGB25V) technology.