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    • 8. 发明申请
    • PHASE SHIFTER AND CONTROL METHOD THEREOF
    • 相变器及其控制方法
    • US20110199141A1
    • 2011-08-18
    • US13124141
    • 2009-09-15
    • Donghwan ShinChangsoo KwakSo-Hyeun YunIn-Bok Yom
    • Donghwan ShinChangsoo KwakSo-Hyeun YunIn-Bok Yom
    • H03H11/20
    • H03H11/20
    • Provided is a phase shifter having a high phase difference in a microwave band. The phase shifter includes a first phase shifting unit configured to receive an input signal having a predetermined frequency, receive a first control signal and a second control signal operating contrary to the first control signal, output the input signal as it is when the first control signal is activated, and output the input signal to have a lead phase as much as a predetermined phase, and a second phase shifting unit configured to receive a second signal outputted from the first phase shifting unit, receive the first control signal and the second control signal, output the second signal to have a lagged phase as much as a predetermined phase when the first control signal is activated, and output the second signal as it is when the second control signal is activated.
    • 提供了一种在微波带中具有高相位差的移相器。 移相器包括:第一相移单元,被配置为接收具有预定频率的输入信号;接收与第一控制信号相反的第一控制信号和第二控制信号;当第一控制信号 并且将输入信号输出为具有预定相位的引导相位;以及第二移相单元,被配置为接收从第一移相单元输出的第二信号,接收第一控制信号和第二控制信号 当第一控制信号被激活时,将第二信号输出为具有预定相位的滞后相位,并且当第二控制信号被激活时输出第二信号。
    • 9. 发明申请
    • SPDT SWITCH FOR RADIO FREQUENCY SWITCHING AND METHOD FOR ENHANCING ISOLATION THEREOF
    • 用于无线电频率切换的SPDT开关及其分离方法
    • US20110140763A1
    • 2011-06-16
    • US12822718
    • 2010-06-24
    • Youn Sub NOHIn Bok Yom
    • Youn Sub NOHIn Bok Yom
    • H03K17/687H03K17/60
    • H03K17/005H03K17/567H03K17/693
    • Provided is an SPDT switch having improved isolation characteristics in an RF band. The SPDT switch includes a serial switching unit, a current sink unit, a switching isolation unit, and a DC blocking unit. The serial switching unit includes first and second HBTs. The current sink unit sinks a current flowing from a common input terminal to each of first and second output terminals of the serial switching unit. The switching isolation unit causes an unselected output terminal of the first and second output terminals to be electrically isolated from the common input terminal when the serial switching unit operates. The DC blocking unit blocks a DC between the first HBT and the first output terminal and a DC between the second HBT and the second output terminal. Accordingly, it is possible to provide better insertion-loss and isolation characteristics in higher frequency bands than typical switches.
    • 提供了在RF频带中具有改进的隔离特性的SPDT开关。 SPDT开关包括串行开关单元,电流吸收单元,开关隔离单元和DC阻断单元。 串行切换单元包括第一和第二HBT。 当前的接收单元吸收从公共输入端子流向串行切换单元的第一和第二输出端子的电流。 当串行切换单元工作时,开关隔离单元使得第一和第二输出端子的未选择的输出端子与公共输入端子电隔离。 DC阻断单元阻止第一HBT与第一输出端之间的DC和第二HBT与第二输出端之间的DC。 因此,可以在比典型的开关更高的频带中提供更好的插入损耗和隔离特性。
    • 10. 发明授权
    • Filter coupled by conductive plates having curved surface
    • 滤波器由具有曲面的导电板耦合
    • US07796000B2
    • 2010-09-14
    • US11996770
    • 2006-06-26
    • Man-Seok UhmJu-Seop LeeSo-Hyeun YunIn-Bok Yom
    • Man-Seok UhmJu-Seop LeeSo-Hyeun YunIn-Bok Yom
    • H01P1/205
    • H01P1/2053H01P7/04
    • Provided is a resonator filter using conductive plates having a curved surface to connect an input/output coaxial connector to a resonator. The resonator filter includes: a plurality of resonators for resonating; an input/output coaxial connector; an input/output supporting unit formed between the input coaxial connector and one of the resonators and/or between an output supporting unit formed between the output coaxial connector and other resonator for electrically and mechanically supporting the input/output coupling; and a connecting unit for connecting the input/output supporting unit and the input/output coaxial connector, wherein the input/output supporting unit is a conductive plate with a curved surface having a center axis similar to the resonators.
    • 提供一种谐振器滤波器,其使用具有弯曲表面的导电板将输入/输出同轴连接器连接到谐振器。 谐振滤波器包括:用于谐振的多个谐振器; 输入/输出同轴连接器; 输入/输出支持单元,形成在输入同轴连接器和一个谐振器之间,和/或形成在输出同轴连接器和其它谐振器之间的输出支撑单元之间,用于电气和机械支撑输入/输出耦合; 以及用于连接输入/输出支持单元和输入/输出同轴连接器的连接单元,其中输入/输出支撑单元是具有与谐振器类似的中心轴线的曲面的导电板。