이중모드 링 공진기를 이용한 발룬-대역 통과 필터
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    发明授权
    이중모드 링 공진기를 이용한 발룬-대역 통과 필터 有权
    使用双模式谐振器的BALUN-BAND PASS滤波器

    公开(公告)号:KR100831076B1

    公开(公告)日:2008-05-22

    申请号:KR1020070041909

    申请日:2007-04-30

    Inventor: 황희용 정을영

    CPC classification number: H01P5/10 H01P1/203 H01P3/08 H01P7/08

    Abstract: A balun-bandpass filter using a dual-mode ring resonator is provided to realize both a balun characteristic and a band pass filter characteristic in a band width by a simple microstrip line path structure. A balun-bandpass filter using a dual-mode ring resonator includes a substrate, a one-wavelength ring resonator(50), an input terminal(60), a first output terminal(70), and a second output terminal(80). The one-wavelength ring resonator includes a first line path(51), a second line path(52), a third line path(53), and an open stub line path. The input terminal supplies an input signal from the outside from the ring resonator. The first output terminal generates a first output signal from the ring resonator. The second output terminal generates a second output signal of the same level of the first output signal from the ring resonator and a phase difference of 180 degrees from the first output signal from the ring resonator. The ring resonator has a two-stage band pass characteristic through forming a dual mode by differentiating impedance between the first line path and the second line path through the first and second output terminal in the input terminal.

    Abstract translation: 提供一种使用双模环形谐振器的平衡 - 不平衡转换滤波器,通过简单的微带线路径结构实现带宽中的平衡 - 不平衡转换特性和带通滤波器特性。 一种使用双模式环形谐振器的平衡 - 不平衡变压器滤波器包括基片,单波长环形谐振器(50),输入端(60),第一输出端(70)和第二输出端(80)。 单波长环形谐振器包括第一线路(51),第二线路(52),第三线路(53)和开路短路线路。 输入端从环形谐振器向外部提供输入信号。 第一输出端产生来自环形谐振器的第一输出信号。 第二输出端产生来自环形谐振器的第一输出信号相同电平的第二输出信号和与来自环形谐振器的第一输出信号相差180度的相位差。 通过在输入端子中通过第一和第二输出端分化第一线路径和第二线路之间的阻抗来形成双模式,环形谐振器具有两级带通特性。

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