公开(公告)号：US12294340B2

公开(公告)日：2025-05-06

申请号：US17805168

申请日：2022-06-02

Applicant: QUALCOMM Incorporated

Inventor： Jiri Stulemeijer ,  Christos Komninakis ,  Robert Wilson ,  Hakan Inanoglu ,  Ryan Scott Castro Spring ,  Antonino Scuderi ,  Michael Lee McCloud

IPC: H03F1/32 ,  H03F1/02 ,  H03F3/24

Abstract: Aspects of the present disclosure provide signal amplification. An example method generally includes amplifying a version of a first input signal with a power amplifier in a first state where a bias voltage of the power amplifier is set to a first voltage based on a first tracking mode; obtaining a first output signal of the power amplifier in a second state where the bias voltage is set to a second voltage less than the first voltage; determining a predistortion associated with the power amplifier based at least in part on the obtained first output signal; applying the predistortion to the first input signal; and amplifying a version of the predistorted first input signal with the power amplifier in a third state where the bias voltage is set to a third voltage based on a second tracking mode, wherein the third voltage is less than the first voltage.

公开(公告)号：US20240429869A1

公开(公告)日：2024-12-26

申请号：US18338282

申请日：2023-06-20

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sthalekar ,  Leon Metreaud ,  Sanjay Nandipaku ,  Hakan Inanoglu ,  Paolo Enrico De Falco ,  Antonino Scuderi ,  Ryan Scott Castro Spring

IPC: H03F1/02 ,  H03F3/24

Abstract: This disclosure provides systems, methods, and devices for wireless communications that support multiple antenna operation. In a first aspect, an apparatus for wireless communications includes an amplifier module comprising a first input node, a second input node, a first output node, a second output node, and a third output node, with the amplifier comprising a first processing path configured to couple the first input node to the first output node; and a second processing path configured to couple the second input node to the second output node in a first mode and to couple the second input node to the third output node in a second mode. Other aspects and features are also claimed and described.

公开(公告)号：US12074648B2

公开(公告)日：2024-08-27

申请号：US17950093

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Erwin Spits ,  Francesco Gatta ,  Adrianus Van Bezooijen ,  Leon Metreaud ,  Hakan Inanoglu

IPC: H04B17/00 ,  H04B17/12 ,  H04B17/13 ,  H04B17/21

CPC classification number: H04B17/0085 ,  H04B17/12 ,  H04B17/13 ,  H04B17/21

Abstract: A wireless communication device is provided with an in-device capability of characterizing the coupling between a pair of antennas. The wireless communication device determines the coupling through an operating gain measurement and through calibration gain measurements obtained through test ports.

公开(公告)号：US10992308B1

公开(公告)日：2021-04-27

申请号：US16862385

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sthalekar ,  Leon Metreaud ,  Hakan Inanoglu ,  Xiangdong Zhang

IPC: H03M1/50 ,  H03M1/18 ,  G04F10/10 ,  G04F10/00

Abstract: An in-situ delay measurement is performed for an envelope-tracking power amplifier of an RF input signal. Because the delay measurement is in-situ, the delay measurement avoids the necessity to down convert and digitize a version of an RF output signal from the envelope-tracking power amplifier.