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US 11,817,865 B2Granted
Oscillator
AssigneeHuawei Technologies Co., Ltd.
InventorHuancheng You
Life of this patent
Estimating the term…
Abstract
An oscillator is provided. The oscillator includes two reverse amplification elements, and each of the reverse amplification elements forms a self-feedback structure by using an inductor. Output ends of the two reverse amplification elements are coupled to each other by using one or more inductors, and input ends of the two reverse amplification elements are coupled to each other by using a capacitor. A capacitance value of the capacitor may be adjusted, to change an oscillation frequency of a differential output oscillation signal output by the oscillator.
Claims18
An oscillator, comprising:
- a first reverse amplification element, comprising a first input end and a first output end;
- a second reverse amplification element, comprising a second input end and a second output end;
- a first inductive element coupled between the first input end and the first output end;
- a second inductive element coupled between the second input end and the second output end;
- a third inductive element coupled between the first output end and the second output end;
- a first capacitive element, coupled between the first input end and the second input end and coupled to receive a first control signal, wherein the first control signal is used to adjust a capacitance value of the first capacitive element;
- a first signal output end, coupled to the first inductive element to output a first oscillation signal;
- a second signal output end, coupled to the second inductive element to output a second oscillation signal, wherein the first oscillation signal and the second oscillation signal jointly form a differential output oscillation signal;
- wherein the first inductive element comprises a first inductor and a fifth inductor, the second inductive element comprises a second inductor and a sixth inductor, and the third inductive element comprises a third inductor and a fourth inductor;
- and
- the oscillator further comprises:
- a third reverse amplification element, comprising a third input end and a third output end;
- a fourth reverse amplification element, comprising a fourth input end and a fourth output end;
- and
- a second capacitive element coupled between the third input end and the fourth input end, wherein
- the first inductor is coupled between the first input end and the third output end, the second inductor is coupled between the second input end and the fourth output end, the third inductor is coupled between the first output end and the third input end, the fourth inductor is coupled between the second output end and the fourth input end, the fifth inductor is coupled between the first output end and the third output end, and the sixth inductor is coupled between the second output end and the fourth output end.
13 more elements
An oscillator circuit structure, comprising:
- a plurality of oscillators coupled in parallel, wherein a plurality of first input ends of the plurality of oscillators are coupled to each other, and a plurality of second input ends of the plurality of oscillators are coupled to each other;
- wherein each of the plurality of oscillators comprises:
- a first reverse amplification element, comprising a first input end and a first output end;
- a second reverse amplification element, comprising a second input end and a second output end;
- a first inductive element coupled between the first input end and the first output end;
- a second inductive element coupled between the second input end and the second output end;
- a third inductive element coupled between the first output end and the second output end;
- a first capacitive element, coupled between the first input end and the second input end and coupled to receive a first control signal, wherein the first control signal is used to adjust a capacitance value of the first capacitive element;
- a first signal output end, coupled to the first inductive element and configured to output a first oscillation signal;
- a second signal output end, coupled to the second inductive element and configured to output a second oscillation signal, wherein the first oscillation signal and the second oscillation signal jointly form a differential output oscillation signal;
- wherein the first inductive element comprises a first inductor and a fifth inductor, the second inductive element comprises a second inductor and a sixth inductor, and the third inductive element comprises a third inductor and a fourth inductor;
- and
- the oscillator further comprises:
- a third reverse amplification element, comprising a third input end and a third output end;
- a fourth reverse amplification element, comprising a fourth input end and a fourth output end;
- and
- a second capacitive element coupled between the third input end and the fourth input end, wherein
- the first inductor is coupled between the first input end and the third output end, the second inductor is coupled between the second input end and the fourth output end, the third inductor is coupled between the first output end and the third input end, the fourth inductor is coupled between the second output end and the fourth input end, the fifth inductor is coupled between the first output end and the third output end, and the sixth inductor is coupled between the second output end and the fourth output end.
15 more elements
Dependencies are inferred from the claim text.