Waveguide filter having asymmetrically corrugated resonators
    1.
    发明授权
    Waveguide filter having asymmetrically corrugated resonators 有权
    具有不对称波纹谐振器的波导滤波器

    公开(公告)号:US06232853B1

    公开(公告)日:2001-05-15

    申请号:US09267096

    申请日:1999-03-12

    CPC classification number: H01P1/211

    Abstract: A waveguide filter is provided having a plurality of asymmetrical corrugated resonators. The filter may also include an input section and an output section including a low-pass filter unit and a transformer unit. The low-pass filter unit includes a plurality of symmetrically corrugated slots, and the transformer unit includes at least one stepped transformer section for matching the filter to an external waveguide line. Each of the asymmetrically corrugated resonators may include a pair of opposed slots of different depth, a long slot and a short slot. The resonators provide at least one reflection zero and two transmission zeros to the frequency response of the filter, thus providing high-pass, band-pass and low-pass filter properties in a single filter structure.

    Abstract translation: 提供了具有多个不对称波纹谐振器的波导滤波器。 滤波器还可以包括输入部分和包括低通滤波器单元和变压器单元的输出部分。 低通滤波器单元包括多个对称的波纹槽,并且变压器单元包括用于将滤波器与外部波导线匹配的至少一个阶梯式变压器部分。 每个非对称波纹的谐振器可以包括不同深度的一对相对的槽,长槽和短槽。 谐振器为滤波器的频率响应提供至少一个反射零点和两个传输零点,从而在单个滤波器结构中提供高通,带通和低通滤波器特性。

    Electronically tunable ridged waveguide cavity filter and method of manufacture therefore
    2.
    发明申请
    Electronically tunable ridged waveguide cavity filter and method of manufacture therefore 审中-公开
    电子可调脊脊波导腔滤波器及其制造方法

    公开(公告)号:US20060006966A1

    公开(公告)日:2006-01-12

    申请号:US11154507

    申请日:2005-06-16

    CPC classification number: H01P3/123 H01P1/2088

    Abstract: An embodiment of the present invention provides a voltage-controlled tunable filter, comprising a tunable ridged waveguide filter formed from a first ridged waveguide cavity coupled to a second ridged waveguide cavity thereby forming a resonator; and one or more tunable capacitors in at least one of said first or second waveguide cavity. The coupling between said first ridged waveguide and said second ridged waveguide may be via a coupling iris or ridged post and the one or more tunable capacitors may comprise a low loss tunable dielectric material and metallic electrodes with predetermined shape, size, and distance. In an embodiment of the present invention the one or more tunable capacitors may be MEMS tunable capacitors that are either parallel plate or interdigital topology. The tunable ridged waveguide filter may be formed from two or more ridged-waveguide resonators and may include an RF Input and RF output connected to the resonator and may be direct coupling probes that are either electric or magnetic. Further, the RF input and RF output proximity coupling may be either electric or magnetic. The inter-cavity coupling may be controlled by the distance and area of the ridged posts.

    Abstract translation: 本发明的一个实施例提供一种电压控制的可调谐滤波器,包括由第一脊状波导腔耦合到第二脊状波导腔形成的可调隆脊波导滤波器,从而形成谐振器; 以及在所述第一或第二波导腔中的至少一个中的一个或多个可调电容器。 所述第一脊状波导和所述第二脊状波导之间的耦合可以经由耦合光圈或脊状柱,并且所述一个或多个可调谐电容器可包括低损耗可调电介质材料和具有预定形状,尺寸和距离的金属电极。 在本发明的一个实施例中,一个或多个可调电容器可以是平行板或叉指拓扑的MEMS可调电容器。 可调脊脊波导滤波器可以由两个或多个脊状波导谐振器形成,并且可以包括连接到谐振器的RF输入和RF输出,并且可以是电或磁性的直接耦合探针。 此外,RF输入和RF输出接近耦合可以是电的或磁的。 腔间耦合可以由脊柱的距离和面积来控制。

    Corrugated waveguide filter having coupled resonator cavities
    3.
    发明授权
    Corrugated waveguide filter having coupled resonator cavities 有权
    具有耦合谐振腔的波纹波导滤波器

    公开(公告)号:US06169466A

    公开(公告)日:2001-01-02

    申请号:US09309406

    申请日:1999-05-10

    CPC classification number: H01P1/211

    Abstract: A corrugated waveguide filter has a plurality of coupled resonator cavities arranged in a horizontal or vertical manner. The filter may include an input transformer section and an output transformer section for matching the filter to external waveguide lines. Each resonator includes at least two extracted slots (or cavities) that are grouped in close proximity to each other, and which may be symmetrically or asymmetrically implemented in the waveguide. The resonators each contribute one reflection zero and two transmission zeros to the frequency response of the filter, the reflection zero being located within the pass-band of the filter, and the two transmission zeros located either at the high-side or low-side of the pass-band depending upon whether the resonator is a low-pass type or a high-pass type. The dimensions of each resonator, including the depth of the slots and the distance between the slots, determines the position of the reflection zero and whether the resonator is low-pass or high-pass.

    Abstract translation: 波纹波导滤波器具有以水平或垂直方式布置的多个耦合谐振腔。 滤波器可以包括用于将滤波器与外部波导线匹配的输入变压器部分和输出变压器部分。 每个谐振器包括至少两个被提供的彼此靠近的提取槽(或空腔),并且其可以在波导中对称或不对称地实现。 谐振器各自对滤波器的频率响应贡献一个反射零点和两个传输零点,反射零点位于滤波器的通带内,两个传输零点位于滤波器的高侧或低侧 该通带取决于谐振器是低通型还是高通型。 每个谐振器的尺寸,包括槽的深度和槽之间的距离确定反射零的位置以及谐振器是低通还是高通。

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