It can be more economical to develop a lower frequency signal with lower power and less expensive devices, and then use a frequency multiplier chain to generate an output frequency in the microwave or millimeter wave range. A subsequent bandpass filter selects the desired harmonic frequency and removes the unwanted fundamental and other harmonics from the output.įrequency multipliers are often used in frequency synthesizers and communications circuits.
Frequency multipliers consist of a nonlinear circuit that distorts the input signal and consequently generates harmonics of the input signal. In electronics, a frequency multiplier is an electronic circuit that generates an output signal and that output frequency is a harmonic (multiple) of its input frequency. ( Learn how and when to remove this template message) ( July 2011) ( Learn how and when to remove this template message)
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