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    MULTI-MODE MIXER
    1.
    发明申请
    MULTI-MODE MIXER 审中-公开

    公开(公告)号：WO2020236801A1

    公开(公告)日：2020-11-26

    申请号：PCT/US2020/033576

    申请日：2020-05-19

    Applicant: QUALCOMM INCORPORATED

    Inventor： PATEL, Chirag Dipak ,  GOLDBLATT, Jeremy ,  FENG, Yunfei ,  LIU, Li ,  YU, Xinmin ,  HOMAYOUN, Aliakbar

    IPC: H03D7/12 ,  H03D7/14

    Abstract: An apparatus is disclosed for mixing signals with a multi-mode mixer for frequency translation. In example implementations, a multi-mode mixer includes a supply voltage node, a ground node, a first data signal coupler, and a second data signal coupler. The multi-mode mixer also includes a mixer core and a current control switch. The mixer core is coupled between the first data signal coupler and the second data signal coupler. The current control switch is configured to selectively enable or disable flow of a current through the mixer core. The first data signal coupler, the second data signal coupler, the mixer core, and the current control switch are coupled together in series between the supply voltage node and the ground node.

    INTERFACE FOR A TRANSCEIVER
    2.
    发明申请
    INTERFACE FOR A TRANSCEIVER 审中-公开

    公开(公告)号：WO2023043587A1

    公开(公告)日：2023-03-23

    申请号：PCT/US2022/041187

    申请日：2022-08-23

    Applicant: QUALCOMM INCORPORATED

    Inventor： YU, Xinmin ,  KU, Bon-Hyun ,  FENG, Yunfei ,  WANG, Chuan

    IPC: H03F3/193 ,  H03F3/24 ,  H03F1/22 ,  H03F1/56 ,  H03F3/68 ,  H03F3/72 ,  H04B1/48 ,  H04B1/04

    Abstract: An apparatus (105) includes a transformer (240) including a first inductor (245), a second inductor (250), and a third inductor (255). The apparatus (105) also includes a power amplifier (110) having an output coupled to the first inductor (245), a low-noise amplifier (120) having an input coupled to a first terminal of the third inductor (255), and a fourth inductor (320) having a first terminal and a second terminal, wherein the second terminal of the fourth inductor (320) is coupled to a second terminal of the third inductor (255). The apparatus (105) also includes a switch (310) coupled between the first terminal of the third inductor (255) and the first terminal of the fourth inductor (320).

    POLYPHASE FILTER WITH INTERPHASE COUPLING
    4.
    发明申请
    POLYPHASE FILTER WITH INTERPHASE COUPLING 审中-公开

    公开(公告)号：WO2022204641A1

    公开(公告)日：2022-09-29

    申请号：PCT/US2022/070803

    申请日：2022-02-23

    Applicant: QUALCOMM INCORPORATED

    Inventor： GATHMAN, Timothy, Donald ,  LEUNG, Lai Kan ,  PATEL, Chirag Dipak ,  YU, Xinmin ,  RANGARAJAN, Rajagopalan

    IPC: H03H11/04

    Abstract: An example apparatus includes a polyphase transconductance-capacitor filter. The polyphase filter includes a DC bias voltage node, a plus in-phase filter unit, a minus in-phase filter unit, a plus quadrature-phase filter unit, and a minus quadrature-phase filter unit. Each filter unit respectively includes an input node, an output node, and a control node. The polyphase filter also includes a plus in-phase switch and a minus in-phase switch. The plus in-phase switch is coupled to the control node of the plus in-phase filter unit, the DC bias voltage node, and the input node of one or both of the plus quadrature-phase filter unit and the minus quadrature-phase filter unit. The minus in-phase switch is coupled to the control node of the minus in-phase filter unit, the DC bias voltage node, and the input node of one or both of the plus quadrature-phase filter unit and the minus quadrature-phase filter unit.

    LARGE-SIGNAL GM3 CANCELLATION TECHNIQUE FOR HIGHLY-LINEAR ACTIVE MIXERS
    5.
    发明申请
    LARGE-SIGNAL GM3 CANCELLATION TECHNIQUE FOR HIGHLY-LINEAR ACTIVE MIXERS 审中-公开

    公开(公告)号：WO2019152273A1

    公开(公告)日：2019-08-08

    申请号：PCT/US2019/015166

    申请日：2019-01-25

    Applicant: QUALCOMM INCORPORATED

    Inventor： YU, Xinmin ,  LEUNG, Lai Kan ,  FENG, Yunfei ,  PATEL, Chirag Dipak

    IPC: H04B1/16

    Abstract: The present disclosure provides an apparatus that includes a first mixer circuit configured to convert between an RF signal and an IF signal based at least in part on an local oscillator (LO) signal. The first mixer circuit is electrically coupled to a first node that is configured to receive the LO signal and a first bias voltage, a second node that is configured to receive the RF signal or the IF signal, and a third node that is configured to provide the IF signal or the RF signal. The apparatus further includes a second mixer circuit electrically coupled to a fourth node configured to receive the LO signal and a second bias voltage, the second node, and the third node. The second bias voltage has a voltage level that is offset from the first bias voltage.

    ENHANCED BROADBAND OPERATION OF AN ACTIVE MIXER
    6.
    发明申请
    ENHANCED BROADBAND OPERATION OF AN ACTIVE MIXER 审中-公开

    公开(公告)号：WO2018106708A1

    公开(公告)日：2018-06-14

    申请号：PCT/US2017/064740

    申请日：2017-12-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： YU, Xinmin ,  GATHMAN, Timothy, Donald ,  LEUNG, Lai, Kan

    IPC: H04B1/26

    Abstract: Methods, systems, and devices for wireless communication are described for enhanced broadband operation of an active mixer. In an example, an apparatus may include an active mixer that converts between radio frequency (RF) signals and intermediate frequency (IF) signals based at least in part on an alternating current (AC) local oscillator (LO) signal, wherein a direct current (DC) current generated within the active mixer is dependent in part on a bias voltage and the AC LO signal. The apparatus may include a mixer biasing circuit that generates the bias voltage for the active mixer, a magnitude of the bias voltage having an inverse relationship to an amplitude of the AC LO signal.

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