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US 9,853,614 B2Granted
Amplifier with triple-coupled inductors
AssigneeQUALCOMM Incorporated
InventorsChuan Wang, Dongling Pan
Life of this patent
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Abstract
An apparatus includes an amplifier and a first inductor coupled to an input of the amplifier. The apparatus also includes a second inductor that is inductively coupled to the first inductor and that couples the amplifier to a first supply node. The apparatus further includes a third inductor that is inductively coupled to the first inductor and to the second inductor and that couples the amplifier to a second supply node.
Claims20
An apparatus comprising:
- an amplifier;
- a first inductor having a first terminal and a second terminal, wherein the first terminal is coupled to an input of the amplifier, and wherein the second terminal is coupled to a ground potential;
- a second inductor configured to be inductively coupled to the first inductor and that couples the amplifier to a first supply node corresponding to a voltage supply;
- and
- a third inductor configured to be inductively coupled to the first inductor and to the second inductor and that couples the amplifier to a second supply node corresponding to the ground potential.
2 more elements
A method of signal amplification, the method comprising:
- receiving a signal at an input of an amplifier, the input coupled to a first terminal of a first inductor, wherein the first inductor has a second terminal coupled to a ground potential;
- and
- amplifying the signal at the amplifier to provide an amplified output signal, the amplifier coupled to a first supply node by a second inductor configured to be inductively coupled to the first inductor and the amplifier coupled to a second supply node by a third inductor configured to be inductively coupled to the first inductor, wherein the first supply node corresponds to a voltage supply, and wherein the second supply node corresponds to the ground potential.
An apparatus comprising:
- means for amplifying a signal, wherein the means for amplifying is configured to amplify signals in a first frequency band;
- first means for coupling the means for amplifying to a first supply node;
- second means for coupling the means for amplifying to a second supply node;
- and
- means for providing an inductance at the input, the means for providing the inductance configured to be inductively coupled to the first means for coupling and to the second means for coupling;
- and
- second means for amplifying configured to amplify signals in a second frequency band, wherein the means for amplifying, the first means for coupling, the second means for coupling, the means for providing the inductance, and the second means for amplifying are incorporated into a wireless communication device.
4 more elements
An apparatus comprising:
- an amplifier;
- a first inductor coupled to an input of the amplifier;
- a second inductor configured to be inductively coupled to the first inductor, wherein the second inductor couples the amplifier to a first supply node;
- and
- a third inductor configured to be inductively coupled to the first inductor and to the second inductor, wherein the third inductor couples the amplifier to a second supply node, and wherein the first inductor, the second inductor, and the third inductor correspond to concentric nested loops.
2 more elements
Dependencies are inferred from the claim text.