Device and method for frequency synthesis with high spectral purity

摘要

A method and device is provided to synthesize a frequency F1->F2 with high spectral purity, the device entails a variable-step synthesizer F3->F4, which contains and least one variable-rank divider Nb located after the synthesizer and a frequency control device delivering the division rank command of the variable-rank divider, the command of the frequency of the variable-step synthesizer and the command of the synthesis step of the variable-step synthesizer.