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    Frequency mixing device
    1.
    发明授权
    Frequency mixing device 有权

    公开(公告)号：US11527996B2

    公开(公告)日：2022-12-13

    申请号：US17496984

    申请日：2021-10-08

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Dong Hwan Shin ,  Dong Pil Chang ,  Byoung Hak Kim ,  Seong Mo Moon ,  In Bok Yom ,  Jun Han Lim ,  Jin Cheol Jeong ,  In Kwon Ju

    IPC: H03D7/12 ,  H03K5/00

    Abstract: Provided is a FET resistive frequency mixing device having improved RF-LO and IF-LO isolations. The frequency mixing device includes: a field effect transistor (FET), a local oscillation matching circuit connected to a gate of the FET to transfer a local oscillation signal to the gate of the FET, a gate biasing circuit connected to the gate of the FET, a radio frequency (RF) matching circuit having a first terminal connected to a drain side of the FET and a second terminal serving as a RF terminal to receive or output a RF signal, an intermediate frequency (IF) matching circuit having a first terminal connected to the drain side of the FET and a second terminal serving as an IF terminal to receive or output an IF signal, and a series resonance circuit providing a path from the drain of the FET to ground for the local oscillation signal.

    FREQUENCY MIXING DEVICE
    2.
    发明申请
    FREQUENCY MIXING DEVICE 有权

    公开(公告)号：US20220115986A1

    公开(公告)日：2022-04-14

    申请号：US17496984

    申请日：2021-10-08

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Dong Hwan Shin ,  Dong Pil Chang ,  Byoung Hak Kim ,  Seong Mo Moon ,  In Bok Yom ,  Jun Han Lim ,  Jin Cheol Jeong ,  In Kwon Ju

    IPC: H03D7/12 ,  H03K5/00

    Abstract: Provided is a FET resistive frequency mixing device having improved RF-LO and IF-LO isolations. The frequency mixing device includes: a field effect transistor (FET), a local oscillation matching circuit connected to a gate of the FET to transfer a local oscillation signal to the gate of the FET, a gate biasing circuit connected to the gate of the FET, a radio frequency (RF) matching circuit having a first terminal connected to a drain side of the FET and a second terminal serving as a RF terminal to receive or output a RF signal, an intermediate frequency (IF) matching circuit having a first terminal connected to the drain side of the FET and a second terminal serving as an IF terminal to receive or output an IF signal, and a series resonance circuit providing a path from the drain of the FET to ground for the local oscillation signal.

    Low phase shift voltage variable attenuator
    4.
    发明授权
    Low phase shift voltage variable attenuator 有权
    低相移电压可变衰减器

    公开(公告)号：US09024702B2

    公开(公告)日：2015-05-05

    申请号：US13895498

    申请日：2013-05-16

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Dong Hwan Shin ,  Seong Mo Moon ,  In Bok Yom

    IPC: H01P1/22 ,  H03H7/25 ,  H03H11/24

    CPC classification number: H03H11/245 ,  H03H7/25

    Abstract: Disclosed is a low phase shift voltage variable attenuator. The low phase shift voltage variable attenuator may include: a first directional coupler including a first input terminal in which a signal is input, a first isolation terminal connected to a ground power source through a termination resistor, a first coupling terminal, and a first through terminal; a second directional coupler including a second input terminal through which an attenuated signal, which is the attenuated input input signal, is output, a second isolation terminal connected to a ground power source through a termination resistor, a second coupling terminal, and a second through terminal; and a signal attenuating unit connected to the first coupling terminal, the first through terminal, the second coupling terminal, and the second through terminal, and configured to attenuate a signal transmitted through the first directional coupler to transmit the attenuated signal to the second directional coupler.

    Abstract translation: 公开了一种低相移电压可变衰减器。 低相移电压可变衰减器可以包括：第一定向耦合器，包括其中输入信号的第一输入端，通过终端电阻连接到地电源的第一隔离端，第一耦合端和第一通 终奌站; 第二定向耦合器，包括第二输入端，输出衰减输入信号的衰减信号，通过终端电阻连接到地电源的第二隔离端，第二耦合端和第二通 终奌站; 以及连接到所述第一耦合端子，所述第一通孔，所述第二耦合端子和所述第二通孔的信号衰减单元，并且被配置为衰减通过所述第一定向耦合器传输的信号以将所述衰减信号发送到所述第二定向耦合器 。

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