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    VARIABLE LOW INTERMEDIATE FREQUENCY (VLIF) RADIO ARCHITECTURE
    1.
    发明申请
    VARIABLE LOW INTERMEDIATE FREQUENCY (VLIF) RADIO ARCHITECTURE 有权

    公开(公告)号：US20250030442A1

    公开(公告)日：2025-01-23

    申请号：US18353201

    申请日：2023-07-17

    Applicant: QUALCOMM INCORPORATED

    Inventor： Abdellatif BELLAOUAR ,  Kevin Hsi-Huai WANG ,  Gurkanwal Singh SAHOTA ,  Rajagopalan RANGARAJAN

    IPC: H04B1/00 ,  H03F3/24 ,  H04B1/40

    Abstract: A variable low intermediate frequency (VLIF), millimeter wave (mmW) communication system including a millimeter-wave (mmW) integrated circuit (mmw-IC) having a receive section having a receive radio frequency (RF) conversion stage and a receive variable intermediate frequency (IF) conversion stage, the receive RF conversion stage configured to convert a receive communication signal between RF and a first receive IF; the receive variable IF conversion stage configured to convert the first receive IF signal to a first variable low IF signal, and a transmit section having a transmit variable IF conversion stage and a transmit RF conversion stage, the transmit variable IF conversion stage configured to convert a second variable low IF signal to a second IF signal, the transmit RF conversion stage configured to convert the second IF signal to an RF signal for transmission.

    AMPLIFIER WITH SWITCHABLE TRANSFORMER
    2.
    发明申请
    AMPLIFIER WITH SWITCHABLE TRANSFORMER 有权

    公开(公告)号：US20220231642A1

    公开(公告)日：2022-07-21

    申请号：US17647534

    申请日：2022-01-10

    Applicant: QUALCOMM Incorporated

    Inventor： Te Yu KAO ,  Muhammad HASSAN ,  Abdellatif BELLAOUAR

    IPC: H03F3/24

    Abstract: In certain aspects, an apparatus includes a first amplifier having a first output and a second output, and a transformer. The transformer includes a first switchable inductor coupled between the first output and the second output, a first capacitor coupled in parallel with the first switchable inductor, a second switchable inductor magnetically coupled to the first switchable inductor, a second capacitor coupled in parallel with the second switchable inductor, a third switchable inductor magnetically coupled to the first switchable inductor, and a third capacitor coupled in parallel with the third switchable inductor.

    SHARED PHASE SHIFTER RADIO ARCHITECTURE
    7.
    发明申请
    SHARED PHASE SHIFTER RADIO ARCHITECTURE 有权

    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.

    DOHERTY TRANSCEIVER INTERFACE
    9.
    发明申请
    DOHERTY TRANSCEIVER INTERFACE 有权

    公开(公告)号：US20230091253A1

    公开(公告)日：2023-03-23

    申请号：US17481559

    申请日：2021-09-22

    Applicant: QUALCOMM INCORPORATED

    Inventor： Chuan WANG ,  Li LIU ,  Bhushan Shanti ASURI ,  Gurkanwal Singh SAHOTA ,  Abdellatif BELLAOUAR ,  Vinod PANIKKATH

    IPC: H03F1/02 ,  H03F3/24 ,  H03F3/21 ,  H04B1/405

    Abstract: A transceiver interface for a phased array element includes a first magnetic circuit having a primary coil and a secondary coil, a second magnetic circuit having a primary coil, a secondary coil and a tertiary coil, a main amplifier path and an auxiliary amplifier path, the main amplifier path coupled to the primary coil of the second magnetic circuit and configured to receive a quadrature signal, the main amplifier path configured to provide a quadrature output signal, the auxiliary amplifier path coupled to the primary coil of the first magnetic circuit and configured to receive an in-phase signal, the auxiliary amplifier path configured to provide an in-phase output signal, a selectable output circuit configured to selectively combine the in-phase output signal and the quadrature output signal, and a low noise amplifier (LNA) coupled to the tertiary coil of the second magnetic circuit.

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