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    RADIO FREQUENCY (RF) VARIABLE GAIN AMPLIFIER (VGA) WITH VARYING GAIN ELEMENTS
    1.
    发明申请
    RADIO FREQUENCY (RF) VARIABLE GAIN AMPLIFIER (VGA) WITH VARYING GAIN ELEMENTS 有权

    公开(公告)号：US20250007480A1

    公开(公告)日：2025-01-02

    申请号：US18611657

    申请日：2024-03-20

    Applicant: QUALCOMM Incorporated

    Inventor： Chuan WANG ,  Li LIU ,  Vinod PANIKKATH ,  Wu-Hsin CHEN ,  Yunfei FENG ,  Anosh DAVIERWALLA ,  Muhammad HASSAN

    IPC: H03G3/30 ,  H03F3/24

    Abstract: Aspects include amplifiers with different units for improved performance. One amplifier has a first transistor with first gate is coupled to a control input, and a first drain is coupled to a first terminal of an output, a second transistor with a second gate is coupled to the control input, and a second drain is coupled to a second terminal of the output. The amplifier has a third transistor with a third drain coupled to the first transistor source, and a third gate is coupled to a first terminal of an input, and a fourth transistor with a fourth drain is coupled to the second transistor source, and a fourth source gate is coupled to a second terminal of the input, where the first transistor source is not connected to the second transistor drain via one or more transistors.

    LOW-PASS FILTER UTILIZING MUTUAL INDUCTANCE
    3.
    发明申请
    LOW-PASS FILTER UTILIZING MUTUAL INDUCTANCE 审中-公开

    公开(公告)号：US20200266791A1

    公开(公告)日：2020-08-20

    申请号：US16275574

    申请日：2019-02-14

    Applicant: QUALCOMM Incorporated

    Inventor： Haitao CHENG ,  Yanming XIAO ,  Wu-Hsin CHEN ,  Li LIU ,  Masoud MOSLEHI BAJESTAN

    IPC: H03H7/01

    Abstract: A low-pass filter having a notch frequency due to a resonance between a mutual inductance of inductive elements and a capacitance. An exemplary low-pass filter generally includes a first inductive element having a first terminal and a second terminal, the first terminal being coupled to the input port, and a second inductive element having a first terminal and a second terminal, the first terminal of the second inductive element being coupled to the second terminal of the first inductive element and the second terminal of the second inductive element being coupled to the output port. The filter also includes a shunt capacitive element coupled to the second terminal of the first inductive element, wherein a mutual inductance between the first inductive element and the second inductive element and a capacitance of the shunt capacitive element are configured to have a resonance providing a notch frequency for the low-pass filter.

    INTERMEDIATE FREQUENCY FILTER FOR MILLIMETER-WAVE CARRIER AGGREGATION
    6.
    发明公开
    INTERMEDIATE FREQUENCY FILTER FOR MILLIMETER-WAVE CARRIER AGGREGATION 审中-公开

    公开(公告)号：US20240106463A1

    公开(公告)日：2024-03-28

    申请号：US17934784

    申请日：2022-09-23

    Applicant: QUALCOMM Incorporated

    Inventor： Wu-Hsin CHEN ,  Yunfei FENG ,  Vinod PANIKKATH ,  Li LIU ,  Sher Jiun FANG

    IPC: H04B1/00 ,  H03H7/01 ,  H04B1/10

    CPC classification number: H04B1/0057 ,  H03H7/0115 ,  H03H7/0153 ,  H03H7/1766 ,  H04B1/1036

    Abstract: Aspects of the disclosure relate to wireless communication apparatuses, methods, and other aspects of sliding intermediate frequency filters for carrier aggregation communications. One aspect a high band mixer including a radio frequency (RF) receive signal input, a local oscillator (LO) input, and an IF signal output, a tunable high pass filter including an input and an output, an intermediate frequency (IF) received signal multiplexer including a merged IF CA signal output, a first input, and a second input, an LO input, and an IF signal output, where the RF receive signal input is coupled to the low band mmW CA receive port, and a tunable low pass filter including an input and an output, where the input is coupled to the IF signal output of the low band mixer, and where the output is coupled to the second input of the IF received signal multiplexer.

    SPLIT CHAINING FOR LARGE PHASE ARRAY SYSTEMS
    8.
    发明公开
    SPLIT CHAINING FOR LARGE PHASE ARRAY SYSTEMS 审中-公开

    公开(公告)号：US20230283303A1

    公开(公告)日：2023-09-07

    申请号：US17686794

    申请日：2022-03-04

    Applicant: QUALCOMM Incorporated

    Inventor： Chuan WANG ,  Li LIU ,  Wu-Hsin CHEN ,  Vinod PANIKKATH ,  Yunfei FENG ,  Muhammad HASSAN

    IPC: H04B1/00 ,  H04B1/04

    CPC classification number: H04B1/0057 ,  H04B1/0483 ,  H04B1/0035 ,  H04B2001/0408

    Abstract: Aspects described herein include devices and methods with chain routing of signals for massive antenna arrays. In some aspects, an apparatus is provided that includes a first millimeter wave (mmW) transceiver having a first port, a second port, one or more antenna elements, a plurality of chain mmW transceiver ports, and switching circuitry. The switching circuitry is controllable by control data to route portions of a merged clock and data signal and a merged control and data signal between a first route between the one or more antenna elements and the first port and a second route between the one or more antenna elements and the second port and a third route between the first port and the plurality of chain mmW transceiver ports and a fourth route between the second port and the plurality of chain mmW transceiver ports.

    SWING TRACKING AND CONTROL
    9.
    发明申请
    SWING TRACKING AND CONTROL 审中-公开

    公开(公告)号：US20200321913A1

    公开(公告)日：2020-10-08

    申请号：US16375765

    申请日：2019-04-04

    Applicant: QUALCOMM Incorporated

    Inventor： Wu-Hsin CHEN ,  Rui XU ,  Marco VIGILANTE ,  Li LIU ,  Xiaotie WU

    IPC: H03B5/12

    Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.

    WIDE TUNING RANGE OSCILLATOR
    10.
    发明申请
    WIDE TUNING RANGE OSCILLATOR 审中-公开

    公开(公告)号：US20200177126A1

    公开(公告)日：2020-06-04

    申请号：US16697801

    申请日：2019-11-27

    Applicant: QUALCOMM Incorporated

    Inventor： Gang LIU ,  Mohammad FARAZIAN ,  Wu-Hsin CHEN ,  Razak HOSSAIN

    IPC: H03B5/12

    Abstract: Certain aspects provide a circuit for generating an oscillating signal. The circuit generally includes a voltage-controlled oscillator (VCO) having cross-coupled transistors, a first capacitive element and a second capacitive element coupled to the cross-coupled transistors, and a first inductive element and a second inductive element coupled to the cross-coupled transistors. First terminals of the first inductive element and the second inductive element are coupled to first terminals of the first capacitive element and the second capacitive element, respectively. The circuit also includes a control circuit having an output coupled to a supply voltage node at second terminals of the first inductive element and the second inductive element, and a feedback path coupled between the VCO and an input of the control circuit.

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