Oscillator circuit
AssigneeHuawei Technologies Co., Ltd.
InventorHuancheng You
Life of this patent
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Abstract
An oscillator circuit is provided. The oscillator circuit includes a first oscillator, a second oscillator, and a switch matrix. The first oscillator includes a first transconductance amplifier, a second transconductance amplifier, and a first resonator. The second oscillator includes a third transconductance amplifier, a fourth transconductance amplifier, and a second resonator. The first resonator includes a first capacitor element and a first inductor element. The second resonator includes a second capacitor element and a second inductor element. The first inductor element is coupled to the second inductor element. The switch matrix includes a first switch, a second switch, a third switch, and a fourth switch.
Claims20
An oscillator circuit, comprising:
- a first oscillator;
- a second oscillator;
- and
- a switch matrix,
- wherein the first oscillator comprises a first transconductance amplifier, a second transconductance amplifier, and a first resonator,
- wherein the second oscillator comprises a third transconductance amplifier, a fourth transconductance amplifier, and a second resonator,
- wherein the first resonator comprises a first capacitor element and a first inductor element, the second resonator comprises a second capacitor element and a second inductor element, and the first inductor element is coupled to the second inductor element,
- wherein the switch matrix comprises a first switch, a second switch, a third switch, and a fourth switch,
- wherein the first switch is coupled to a first output port of the first transconductance amplifier and a third output port of the third transconductance amplifier, the second switch is coupled to the first output port of the first transconductance amplifier and a fourth output port of the fourth transconductance amplifier, the third switch is coupled to a second output port of the second transconductance amplifier and the third output port of the third transconductance amplifier, and the fourth switch is coupled to the second output port of the second transconductance amplifier and the fourth output port of the fourth transconductance amplifier, and
- wherein the switch matrix is configured to change a coupling coefficient between the first inductor element and the second inductor element.
An electronic device, comprising:
- at least one processor;
- and
- a transceiver,
- wherein the at least one processor is coupled to the transceiver, and the transceiver comprises an oscillator circuit,
- wherein the oscillator circuit comprises a first oscillator, a second oscillator, and a switch matrix,
- wherein the first oscillator comprises a first transconductance amplifier, a second transconductance amplifier, and a first resonator,
- wherein the second oscillator comprises a third transconductance amplifier, a fourth transconductance amplifier, and a second resonator,
- wherein the first resonator comprises a first capacitor element and a first inductor element, the second resonator comprises a second capacitor element and a second inductor element, and the first inductor element is coupled to the second inductor element,
- wherein the switch matrix comprises a first switch, a second switch, a third switch, and a fourth switch,
- wherein the first switch is coupled to a first output port of the first transconductance amplifier and a third output port of the third transconductance amplifier, the second switch is coupled to the first output port of the first transconductance amplifier and a fourth output port of the fourth transconductance amplifier, the third switch is coupled to a second output port of the second transconductance amplifier and the third output port of the third transconductance amplifier, and the fourth switch is coupled to the second output port of the second transconductance amplifier and the fourth output port of the fourth transconductance amplifier, and
- wherein the switch matrix is configured to change a coupling coefficient between the first inductor element and the second inductor element.
Dependencies are inferred from the claim text.