公开(公告)号：US12170536B2

公开(公告)日：2024-12-17

申请号：US17658379

申请日：2022-04-07

Applicant: QUALCOMM Incorporated

Inventor： Karthik Tripurari Jayaraman ,  Bao Huu Lam ,  Xingyi Hua

IPC: H04B1/04 ,  H03F1/26 ,  H03H7/01 ,  H04B1/10 ,  H04K3/00

Abstract: Techniques for providing low-cost and effective jammer rejection for an amplifier is disclosed. The amplifier includes an input node and an output node, a first transistor and a second transistor, a load circuitry, an inductor, and a capacitor. A first terminal of the first transistor is coupled to a ground. A second terminal of the first transistor is coupled to a first terminal of the second transistor. A second terminal of the second transistor is coupled to the output node. The load circuitry is coupled between a power supply and the second terminal of the second transistor. A first terminal of the inductor is coupled to the ground through a first switch. A first terminal of the capacitor is coupled to the first terminal of the second transistor and a second terminal of the capacitor is coupled to a second terminal of the inductor.

公开(公告)号：US12255674B2

公开(公告)日：2025-03-18

申请号：US17580320

申请日：2022-01-20

Applicant: QUALCOMM Incorporated

Inventor： Xingyi Hua ,  Bassel Hanafi ,  Karthik Tripurari Jayaraman ,  Francesco Gatta

IPC: H03F1/22 ,  H03F1/56 ,  H04B1/04

Abstract: Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry implementing a low noise amplifier (LNA) with phase-shifting circuitry to achieve a continuous phase at the output of the LNA. One aspect is an amplifier including a high gain active path comprising active circuitry, and a low gain path comprising passive circuitry and phase-shifting circuitry. In one or more aspects, the phase-shifting circuitry is configured to shift a phase of an input signal within the low gain path such that the phase of an output signal outputted from the low gain path approximately matches a phase of an output signal outputted from the high gain active path. In at least one aspect, a gain of the high gain active path is higher than a gain of the low gain passive path.

公开(公告)号：US12113491B2

公开(公告)日：2024-10-08

申请号：US17478746

申请日：2021-09-17

Applicant: QUALCOMM Incorporated

Inventor： Alaaeldien Mohamed Abdelrazek Medra ,  Xingyi Hua ,  Naushad Dhamani ,  Francesco Gatta

IPC: H03F3/19 ,  H04B1/16

CPC classification number: H03F3/19 ,  H04B1/16 ,  H03F2200/451

Abstract: Aspects of the present disclosure relate to a receiver including an amplifier circuit. The amplifier circuit includes a common-source amplifier having an input and an output, and a common-gate amplifier having an input and an output, wherein the input of the common-gate amplifier is coupled to the output of the common-source amplifier. The receiver also includes a first receive chain coupled to the output of the common-gate amplifier, and a second receive chain coupled to the output of the common-source amplifier.

公开(公告)号：US12095436B2

公开(公告)日：2024-09-17

申请号：US17457840

申请日：2021-12-06

Applicant: QUALCOMM Incorporated

Inventor： Xingyi Hua

IPC: H02M1/14 ,  H03H19/00

CPC classification number: H03H19/004 ,  H02M1/14

Abstract: In certain aspects, a system includes a voltage line, a switched-capacitor circuit coupled to the voltage line, and a ripple-cancellation circuit. The ripple-cancellation circuit includes a current mirror having a first branch and a second branch, wherein the second branch of the current mirror is coupled to the voltage line, a switching circuit having a first terminal, a second terminal, and a third terminal, wherein the first terminal of the switching circuit is coupled to the first branch of the current mirror, and the third terminal is coupled to a ground or a reference voltage, and a first capacitor coupled to the second terminal of the switching circuit.