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    High power tunable filter
    81.
    发明授权
    High power tunable filter 失效
    大功率可调谐滤波器

    公开(公告)号：US4692724A

    公开(公告)日：1987-09-08

    申请号：US789669

    申请日：1985-10-21

    Applicant: Mark A. Harris

    Inventor： Mark A. Harris

    IPC: H01P1/201 ,  H03K17/04 ,  H03K17/615 ,  H03K17/66 ,  H01P1/20 ,  H01P1/203

    CPC classification number: H03K17/666 ,  H01P1/201 ,  H03K17/04 ,  H03K17/615

    Abstract: A high power tunable filter, for use in a frequency hopping system, is described and includes a transmission line having an input for receiving a high power level input signal to be filtered, and an output. The filter includes a plurality of resonators, each parallel-coupled to the transmission line, and driven by an associated electronic tuning network. Each of the electronic tuning networks includes a plurality of tunable reactive elements and PIN diodes, each PIN diode connected to one of the tunable reactive elements to enable this diode to connect its associated tunable reactive element in and out of the tuning network, thereby controlling the resonant frequency of the resonator associated with the tuning network. An electronic control circuit is also provided for controlling the frequency of the tunable filter. The electronic control circuit includes appropriate input circuitry for entering a desired frequency of the tunable filter, and an addressable look-up table responsive to the input circuitry for converting the desired frequency into a unique binary codeword. Switch drive circuits are also provided, responsive to the bits of the binary codeword, for controlling the operational states of the PIN diodes.

    Abstract translation: 描述了用于跳频系统的大功率可调谐滤波器，并且包括具有用于接收要被滤波的高功率电平输入信号的输入端和输出端的传输线。 滤波器包括多个谐振器，每个谐振器并联耦合到传输线，并由相关联的电子调谐网络驱动。 每个电子调谐网络包括多个可调谐无功元件和PIN二极管，每个PIN二极管连接到可调谐无功元件中的一个，以使得该二极管能够将其相关联的可调谐无功元件连接到调谐网络中和从调谐网络中传出，从而控制 与调谐网络相关联的谐振器的谐振频率。 还提供了用于控制可调滤波器的频率的电子控制电路。 电子控制电路包括用于输入可调滤波器的期望频率的适当输入电路，以及响应于输入电路的可寻址查找表，用于将所需频率转换成唯一的二进制码字。 还提供响应于二进制码字的位的开关驱动电路，用于控制PIN二极管的操作状态。

    Dielectric filter and communication device
    86.
    发明授权
    Dielectric filter and communication device 有权

    公开(公告)号：US12027741B2

    公开(公告)日：2024-07-02

    申请号：US17895670

    申请日：2022-08-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Meng Zou ,  Jing Shi

    IPC: H01P1/202 ,  H01P1/20 ,  H01P1/201 ,  H01P1/205 ,  H01P3/16

    CPC classification number: H01P1/2002 ,  H01P1/201 ,  H01P1/2056 ,  H01P3/16

    Abstract: Embodiments of this application disclose a dielectric filter and a communication device. In one example, the dielectric filter includes: a first dielectric block and a second dielectric block that are stacked up, where a first surface of the first dielectric block is opposite to a second surface of the second dielectric block; a first blind hole, a first through hole, and two or more resonance through holes whose openings are located on the first surface of the first dielectric block, and a second through hole whose opening is located on the second surface of the second dielectric block. A metal layer on the first surface of the first dielectric block is connected to a metal layer on the second surface of the second dielectric block.

    SYSTEMS AND METHODS OF DESIGNING, TUNING AND PRODUCING CERAMIC FILTERS
    88.
    发明申请
    SYSTEMS AND METHODS OF DESIGNING, TUNING AND PRODUCING CERAMIC FILTERS 审中-公开

    公开(公告)号：US20180131069A1

    公开(公告)日：2018-05-10

    申请号：US15797582

    申请日：2017-10-30

    Applicant: LGS INNOVATIONS LLC

    Inventor： ALAN SCOTT BRANNON

    IPC: H01P11/00 ,  H01P1/201

    CPC classification number: H01P11/007 ,  H01P1/201 ,  H01P1/2056

    Abstract: The present applications at least describes a method of making a tuned ceramic filter. The method includes printing an oversized pattern of ceramic material on a ceramic filter. The method also include removing, at a first tune location of the ceramic filter, a first amount of the ceramic material using a laser to shrink the oversized pattern. The method also includes comparing a coupling matrix of the ceramic filter after the removing step with a coupling matrix of a prototype of the ceramic filter. The method includes a step of generating a tune vector based upon a difference between the coupling matrix of the ceramic filter and the coupling matrix of the prototype filter. Further, the method includes a step of iteratively modifying the removing of the ceramic material using femto-second laser at the first tune location to have a coefficient of the tune vector corresponding to the first tune location to converge toward zero.

    Waveguide E-plane filter structure
    90.
    发明授权
    Waveguide E-plane filter structure 有权

    公开(公告)号：US09799937B2

    公开(公告)日：2017-10-24

    申请号：US14781808

    申请日：2013-04-02

    Applicant: Telefonaktiebolaget L M Ericsson (publ)

    Inventor： Anatoli Deleniv ,  Piotr Kozakowski

    IPC: H01P5/12 ,  H01P1/201 ,  H01P1/207 ,  H01P1/213

    CPC classification number: H01P1/201 ,  H01P1/2016 ,  H01P1/207 ,  H01P1/2138

    Abstract: The present invention relates to a waveguide E-plane filter component comprising a first and second main part (2) with a corresponding first and second waveguide section part (3). The main parts (2) are mounted to each other, such that a waveguide arrangement is formed. The waveguide arrangement has a height and a width. The waveguide E-plane filter component further comprises at least one electrically conducting foil (10, 11) that is placed between the main parts (3), said foil comprising a filter part (25) with apertures (12a, 12b, 12c, 12d). Each pair of adjacent apertures is separated by a corresponding foil conductor (13a, 13b, 13c) of which at least one is constituted by a tuning foil conductor (13a) that has a first, second and third part (14, 16, 18) with a corresponding first, second and third width (15, 17, 19).

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