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    Transmit-and-receive module and communication device
    1.
    发明授权
    Transmit-and-receive module and communication device 有权

    公开(公告)号：US10069530B2

    公开(公告)日：2018-09-04

    申请号：US15845240

    申请日：2017-12-18

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Jin Yokoyama ,  Shiro Masumoto

    IPC: H04B1/44 ,  H04B1/00 ,  H03G3/30 ,  H04B1/04 ,  H04B1/48

    Abstract: A transmit-and-receive module includes a duplexer, a power amplifier, and a low-noise amplifier. The duplexer includes a transmit filter and a receive filter. The power amplifier and the low-noise amplifier are integrated with each other. In a Smith chart, impedance in a receive band of the receive filter seen from a receive terminal intersects a line connecting a center point of noise figure circles and a center point of gain circles. The center point of the noise figure circles represents the impedance at which the noise figure of the low-noise amplifier is minimized. The center point of the gain circles represents the impedance at which the gain of the low-noise amplifier is maximized.

    TRANSMIT-AND-RECEIVE MODULE AND COMMUNICATION DEVICE
    3.
    发明申请
    TRANSMIT-AND-RECEIVE MODULE AND COMMUNICATION DEVICE 审中-公开

    公开(公告)号：US20200044681A1

    公开(公告)日：2020-02-06

    申请号：US16055649

    申请日：2018-08-06

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Jin YOKOYAMA ,  Shiro Masumoto ,  Syunji Yoshimi

    IPC: H03H7/46 ,  H04B1/401 ,  H03H7/40 ,  H03F3/24 ,  H04B1/04

    Abstract: A transmit-and-receive module includes a multiplexer, a power amplifier, and a low-noise amplifier. The multiplexer includes a transmit filter and a receive filter. The power amplifier and the low-noise amplifier are integrated with each other. In a Smith chart, impedance in a receive band of the receive filter seen from a receive terminal intersects a line connecting a center point of noise figure circles and a center point of gain circles. The center point of the noise figure circles represents the impedance at which the noise figure of the low-noise amplifier is minimized. The center point of the gain circles represents the impedance at which the gain of the low-noise amplifier is maximized.

    Transmit-and-receive module and communication device
    4.
    发明授权
    Transmit-and-receive module and communication device 有权

    公开(公告)号：US11381274B2

    公开(公告)日：2022-07-05

    申请号：US16983417

    申请日：2020-08-03

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Jin Yokoyama ,  Shiro Masumoto ,  Syunji Yoshimi

    IPC: H04B1/401 ,  H03H7/40 ,  H04B1/04 ,  H03F3/24

    Abstract: A transmit-and-receive module includes a multiplexer, a power amplifier, and a low-noise amplifier. The multiplexer includes a transmit filter and a receive filter. The power amplifier and the low-noise amplifier are integrated with each other. In a Smith chart, impedance in a receive band of the receive filter seen from a receive terminal intersects a line connecting a center point of noise figure circles and a center point of gain circles. The center point of the noise figure circles represents the impedance at which the noise figure of the low-noise amplifier is minimized. The center point of the gain circles represents the impedance at which the gain of the low-noise amplifier is maximized.

    Transmit-and-receive module and communication device
    5.
    发明授权
    Transmit-and-receive module and communication device 有权

    公开(公告)号：US10771102B2

    公开(公告)日：2020-09-08

    申请号：US16055649

    申请日：2018-08-06

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Jin Yokoyama ,  Shiro Masumoto ,  Syunji Yoshimi

    IPC: H04B1/401 ,  H03H7/40 ,  H04B1/04 ,  H03F3/24

    Abstract: A transmit-and-receive module includes a multiplexer, a power amplifier, and a low-noise amplifier. The multiplexer includes a transmit filter and a receive filter. The power amplifier and the low-noise amplifier are integrated with each other. In a Smith chart, impedance in a receive band of the receive filter seen from a receive terminal intersects a line connecting a center point of noise figure circles and a center point of gain circles. The center point of the noise figure circles represents the impedance at which the noise figure of the low-noise amplifier is minimized. The center point of the gain circles represents the impedance at which the gain of the low-noise amplifier is maximized.

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