Frequency synthesis device with high multiplication rank
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsClement Jany, Frederic Hameau, Alexandre Siligaris
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Abstract
A frequency synthesis device with high multiplication rank, including a base frequency generator generating two first base signals of square shape of same frequency and opposite to each other, a first synthesis stage including two first switching power supply oscillators, of which the power supplies are respectively switched by the two first base signals, a second synthesis stage including a second switching power supply oscillator of which the supply is switched by a combination of the output signals of the two first oscillators, the output of the second switching power supply oscillator being filtered by a frequency discriminator circuit realized with an injection locked oscillator.
Claims7
A frequency synthesis device comprising:
- a base frequency generator suited to generating a plurality K of first base signals, said first base signals being clock signals with non-overlapping phases, of same frequency f1;
- a first synthesis stage including a plurality K of first switching power supply oscillators of identical structure and of same natural frequency, fG1, power supplies of these K first oscillators being respectively switched by said K base signals, output signals of these K first oscillators being combined to supply a second base signal, of square shape and periodic, of frequency f2=Nf1 where N is an integer;
- a second synthesis stage including a second switching power supply oscillator including a supply switched by the second base signal, an output signal of this second oscillator being in the form of wave trains, a repetition frequency of these wave trains being equal to f2 and a frequency of these waves being equal to Mfg where M is an integer, the second synthesis stage further including a frequency discriminator circuit adapted to filtering the output signal of the second oscillator to supply a sinusoidal signal at the frequency Mfg.
Dependencies are inferred from the claim text.