公开(公告)号：US20220311460A1

公开(公告)日：2022-09-29

申请号：US17211769

申请日：2021-03-24

Applicant: QUALCOMM Incorporated

Inventor： Meysam AZIN ,  Li LU ,  Anees HABIB ,  Chinmaya MISHRA ,  Damin CAO ,  Arul BALASUBRAMANIYAN ,  David Ta-hsiang LIN ,  Shuang ZHU ,  Dinesh Jagannath ALLADI

IPC: H04B1/04 ,  H03M1/46 ,  H03M3/00

Abstract: Aspects of the disclosure relate to an apparatus for wireless communication. The apparatus may include a set of power detectors configured to generate a set of analog signals related to a set of output signal power levels of a set of transmit chains of a transmitter, respectively; an analog summer; a set of switching devices configured to send a selected one or more of the set of analog signals to the analog summer, and substantially isolated unselected one or more of the set of power detectors from the analog summer, wherein the analog summer is configured to generate a cumulative analog signal based on a sum of the selected one or more of the set of analog signals; an analog-to-digital converter (ADC) configured to generate a digital signal based on the cumulative analog signal; and a controller configured to control the set of switching devices.

公开(公告)号：US20240429906A1

公开(公告)日：2024-12-26

申请号：US18340239

申请日：2023-06-23

Applicant: QUALCOMM Incorporated

Inventor： Abdellatif BELLAOUAR ,  Chirag Dipak PATEL ,  Kevin Hsi-Huai WANG ,  Rajagopalan RANGARAJAN ,  Gurkanwal Singh SAHOTA ,  Arul BALASUBRAMANIYAN

IPC: H03K5/01 ,  H03G3/30 ,  H04B7/08

Abstract: A phase shifter for a millimeter wave (mmW) communication system including an in phase variable gain amplifier (I VGA) and a quadrature VGA (Q VGA) configured to receive radio frequency (RF) signals, the I VGA and the Q VGA configured to provide a selectable output to primary sides of first and second electromagnetic (EM) elements, respectively, the first EM element configured to provide a single-ended I output and the second EM element configured to provide a single-ended Q output, and a hybrid quadrature generator (HQG) configured to receive the single-ended I output of the first EM element and the single-ended Q output of the second EM element, the HQG configured to provide a combined signal at a desired phase.

公开(公告)号：US20230258699A1

公开(公告)日：2023-08-17

申请号：US18306616

申请日：2023-04-25

Applicant: QUALCOMM Incorporated

Inventor： Abdellatif BELLAOUAR ,  Arul BALASUBRAMANIYAN ,  Gurkanwal Singh SAHOTA ,  Muhammad HASSAN ,  Jorge GARCIA ,  Bhushan Shanti ASURI ,  Ravi SRIDHARA ,  Omar Essam EL-AASSAR ,  Chinmaya MISHRA

IPC: G01R21/10 ,  G01R21/133 ,  H03F3/45

CPC classification number: G01R21/10 ,  G01R21/133 ,  H03F3/45475 ,  H03F2200/171 ,  H03F2200/294 ,  H03F2200/451 ,  H03M1/12

Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.

公开(公告)号：US20220416737A1

公开(公告)日：2022-12-29

申请号：US17356424

申请日：2021-06-23

Applicant: QUALCOMM Incorporated

Inventor： Jeremy GOLDBLATT ,  Arul BALASUBRAMANIYAN ,  Chinmaya MISHRA ,  Damin CAO ,  Bhushan Shanti ASURI

IPC: H03F3/24 ,  H03G3/30 ,  G01R19/04 ,  H03F1/02 ,  H03F3/195 ,  H04B1/04

Abstract: A peak detector for a power amplifier is provided that includes a threshold voltage detector configured to pulse a detection current in response to an amplified output signal from the amplifier exceeding a peak threshold. A plurality of such peak detectors may be integrated with a corresponding plurality of power amplifiers in a transmitter. Should any peak detector assert an alarm signal or more than a threshold number of alarm signals during a given period, a controller reduces a gain for the plurality of power amplifiers.

公开(公告)号：US20220018882A1

公开(公告)日：2022-01-20

申请号：US16932589

申请日：2020-07-17

Applicant: QUALCOMM Incorporated

Inventor： Abdellatif BELLAOUAR ,  Arul BALASUBRAMANIYAN ,  Gurkanwal Singh SAHOTA ,  Muhammad HASSAN ,  Jorge GARCIA ,  Bhushan Shanti ASURI ,  Ravi SRIDHARA ,  Omar Essam EL-AASSAR ,  Chinmaya MISHRA

IPC: G01R21/10 ,  H03F3/45 ,  G01R21/133

Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.