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    TECHNIQUES FOR LOW-LOSS MULTI-BAND MULTIPLEXING
    1.
    发明申请
    TECHNIQUES FOR LOW-LOSS MULTI-BAND MULTIPLEXING 审中-公开

    公开(公告)号：WO2018136485A1

    公开(公告)日：2018-07-26

    申请号：PCT/US2018/014001

    申请日：2018-01-17

    Applicant: QUALCOMM INCORPORATED

    Inventor： PATEL, Chirag Dipak ,  LEUNG, Lai Kan ,  JIN, Zhang ,  MISHRA, Chinmaya ,  SRIDHARA, Ravi ,  YOON, Youngchang

    IPC: H03H7/46 ,  H04B1/00

    Abstract: Various aspects described herein relate to low-loss multi-band multiplexing schemes for a wireless communications system, for example, a 5th Generation (5G) New Radio (NR) system. In an aspect, a multiplexer for multi-band wireless communications comprises at least one tuning component configured to transmit or receive at least one signal within a frequency band that is selected from a plurality of frequency bands. The multiplexer further comprises at least one combining component, communicatively coupled with the at least one tuning component, configured to transmit or receive the at least one signal within the selected frequency band. In an aspect, the at least one tuning component is integrated on a chip and the at least one combining component is not integrated on the chip.

    CONFIGURABLE MIXER
    2.
    发明申请
    CONFIGURABLE MIXER 审中-公开
    可配置的混合器

    公开(公告)号：WO2018057148A1

    公开(公告)日：2018-03-29

    申请号：PCT/US2017/046801

    申请日：2017-08-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHOI, Kiyong ,  ZENG, Yi ,  KIM, Hong Sun ,  VUJCIC, Sasha ,  PATEL, Chirag Dipak ,  TASIC, Aleksandar Miodrag ,  GATHMAN, Timothy Donald ,  CHEN, Wu-Hsin ,  VAN ZALINGE, Klaas

    IPC: H04B1/10 ,  H03D7/14

    Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

    Abstract translation: 公开了一种用于能够以线性，传统和低功率模式操作的可配置混频器的方法和设备。 在线性模式中，可配置混频器被配置为作为双平衡混频器操作以将第一差分信号乘以第二差分信号。 在传统模式中，可配置混频器被配置为双平衡混频器，以将差分信号乘以单端信号。 在低功耗模式下，可配置混频器配置为作为单平衡混频器工作，以将差分信号与单端信号相乘。 可配置混频器的操作模式可以至少部分地基于模式控制信号。 在一些实施例中，可配置混频器可以被包括在无线通信设备的模拟前端中。

    PHASE SHIFTER WITH COMPENSATION CIRCUIT
    3.
    发明申请
    PHASE SHIFTER WITH COMPENSATION CIRCUIT 审中-公开

    公开(公告)号：WO2022046338A1

    公开(公告)日：2022-03-03

    申请号：PCT/US2021/043218

    申请日：2021-07-26

    Applicant: QUALCOMM INCORPORATED

    Inventor： MOHAMMADI, Laya ,  PATEL, Chirag Dipak ,  ASURI, Bhushan Shanti

    IPC: H03H11/20 ,  H03H11/22

    Abstract: An apparatus is disclosed for phase-shifting signals with a compensation circuit. In example implementations, an apparatus for phase-shifting signals includes a phase shifter having a first port and a second port. The phase shifter also includes a signal phase generator, a compensation circuit, and a vector modulator. The compensation circuit includes a first capacitor with a first capacitance and a second capacitor with a second capacitance. The first capacitance is different from the second capacitance. The signal phase generator is coupled between the first port and the compensation circuit. The vector modulator is coupled between the compensation circuit and the second port.

    MULTI-MODE MIXER
    4.
    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.

    HARMONIC TRAP FOR COMMON GATE AMPLIFIER
    8.
    发明申请
    HARMONIC TRAP FOR COMMON GATE AMPLIFIER 审中-公开
    谐振放大器

    公开(公告)号：WO2015026573A1

    公开(公告)日：2015-02-26

    申请号：PCT/US2014/050719

    申请日：2014-08-12

    Applicant: QUALCOMM INCORPORATED

    Inventor： RANGARAJAN, Rajagopalan ,  PATEL, Chirag Dipak

    IPC: H03F3/60 ,  H03F1/56 ,  H03F1/32

    CPC classification number: H04B1/10 ,  H03F1/3205 ,  H03F1/565 ,  H03F3/19 ,  H03F3/601 ,  H03F2200/111 ,  H03F2200/246 ,  H03F2200/255 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/495 ,  H03F2200/501 ,  H03F2200/543

    Abstract: A circuit, a method and an apparatus, are described. A radio frequency, RF, signal received from a transmission line (606) is provided to the source of a transistor (624a) in a common-gate amplification circuit (624). A series resonance (632, 634) connected to the source provides a low impedance path to ground for interfering RF components in the RF signal. The series resonance (632, 634) is tuned to provide a high impedance to a band of frequencies centered on a frequency of interest and to shunt interfering RF components outside the band of frequencies centered on the frequency of interest. The interfering RF components may include a harmonic of the frequency of interest.

    Abstract translation: 描述了电路，方法和装置。 从共用栅极放大电路（624）向晶体管（624a）的源极提供从传输线（606）接收的射频RF信号。 连接到源极的串联谐振（632,634）为射频信号中的RF分量提供了一个低阻抗路径。 串联谐振（632,634）被调谐以向以感兴趣的频率为中心的频带的频带提供高阻抗，并且以感兴趣的频率为中心的频率带外的干扰RF分量分流。 干扰RF分量可以包括感兴趣频率的谐波。

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