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US 12,719,423 B2Granted
Pseudo bi-directional amplifier
AssigneeQUALCOMM Incorporated
InventorsChirag Dipak Patel, Chinmaya Mishra, Cheng Tao, Muhammad Hassan
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Abstract
A radio frequency integrated circuit (RFIC), including a power amplifier (PA) connected to an antenna through a first electromagnetic (EM) element, the PA configured to receive a transmit signal from a second EM element, a low noise amplifier (LNA) connected to the first EM element and the second EM element, the power amplifier and the LNA comprising separate amplifier cores, and wherein the first EM element comprises a first plurality of interwound windings occupying a first common area and the second EM element comprises a second plurality of interwound windings occupying a second common area.
Claims25
A radio frequency integrated circuit (RFIC), comprising:
- a power amplifier (PA) having an output coupled to an antenna through a first electromagnetic (EM) element, the PA configured to receive at an input a transmit signal from a second EM element;
- a low noise amplifier (LNA) having an input coupled to the first EM element and an output coupled to the second EM element, the power amplifier and the LNA comprising separate amplifier cores;
- and
- wherein the first EM element comprises a first plurality of windings occupying a first common area and the second EM element comprises a second plurality of windings occupying a second common area, at least one of the first plurality of windings in the first EM element is coupled to an input of the LNA and selectively coupled to a system ground and wherein at least one of the second plurality of windings in the second EM element comprises a first winding portion and a first switch, and a second winding portion and a second switch each of the first winding portion and the second winding portion selectively coupled to a bias voltage by the first switch and the second switch.
1 more element
A method for amplifying signals, comprising:
- coupling an output of a power amplifier (PA) and an input of a low noise amplifier (LNA) to an antenna through a first electromagnetic (EM) element;
- and
- coupling an input of the PA to a transmit signal and an output of the LNA to a receiver through a second EM element,
- wherein the first EM element comprises a first plurality of windings occupying a first common area and the second EM element comprises a second plurality of windings occupying a second common area, at least one of the first plurality of windings in the first EM element is coupled to an input of the LNA and selectively coupled to a system ground and wherein at least one of the second plurality of windings in the second EM element comprises a first winding portion and a first switch, and a second winding portion and a second switch each of the first winding portion and the second winding portion selectively coupled to a bias voltage by the first switch and the second switch.
1 more element
A device for amplifying signals, comprising:
- means for coupling an output of a power amplifier (PA) and an input of a low noise amplifier (LNA) to an antenna through a first electromagnetic (EM) element;
- and
- means for coupling an input of the PA to a transmit signal and an output of the LNA to a receiver through a second EM element;
- and
- wherein the first EM element comprises a first plurality of windings occupying a first common area and the second EM element comprises a second plurality of windings occupying a second common area, at least one of the first plurality of windings in the first EM element is coupled to an input of the LNA and selectively coupled to a system ground and wherein at least one of the second plurality of windings in the second EM element comprises a first winding portion and a first switch, and a second winding portion and a second switch each of the first winding portion and the second winding portion selectively coupled to a bias voltage by the first switch and the second switch.
2 more elements
A communication system having a pseudo bi-directional amplifier, comprising:
- a first electromagnetic (EM) element;
- a second EM element;
- and
- a power amplifier (PA) and a low noise amplifier (LNA) each disposed at least partially between the first EM element and the second EM element, the PA being spaced from the LNA,
- wherein the PA is coupled to an antenna through the first EM element and is configured to receive a transmit signal from the second EM element,
- wherein an input of the LNA is coupled to the first EM element and an output of the LNA is coupled to the second EM element, and
- wherein the first EM element comprises a first plurality of at least partially overlapping windings and the second EM element comprises a second plurality of at least partially overlapping windings, at least one of the first plurality of at least partially overlapping windings in the first EM element is coupled to an input of the LNA and selectively coupled to a system ground and wherein at least one of the second plurality of at least partially overlapping windings in the second EM element comprises a first winding portion and a first switch, and a second winding portion and a second switch each of the first winding portion and the second winding portion selectively coupled to a bias voltage by the first switch and the second switch.
4 more elements
Dependencies are inferred from the claim text.