FILTERS INCLUDING BANDPASS FILTER TRANSMISSION LINES

    公开(公告)号:US20220294483A1

    公开(公告)日:2022-09-15

    申请号:US17690182

    申请日:2022-03-09

    Abstract: Filters include a housing having an input port and an output port and a plurality of resonant cavities within the housing. Each resonant cavity may include a respective notch resonator. The filter may further include a bandpass filter that includes a plurality of bandpass resonators, the bandpass filter extending between the input port and the output port. The bandpass filter may replace a transmission line that is included in conventional filters.

    BAND-STOP FILTER, TRANSMISSION LINE FOR BAND-STOP FILTER AND MULTIPLEXER

    公开(公告)号:US20200295423A1

    公开(公告)日:2020-09-17

    申请号:US16804024

    申请日:2020-02-28

    Abstract: A band-stop filter comprises: a housing having a top wall, a bottom wall and at least one side wall, the housing defining an internal cavity; a signal input port and a signal output port that are respectively disposed on one of the at least one side wall; a resonating element that is disposed in the internal cavity and includes a top, a bottom, and a side; and a transmission line that is disposed in the internal cavity and coupled between the signal input port and the signal output port, the transmission line comprising a coupling section that is coupled to the resonating element, wherein the coupling section is configured to surround more than half of the side of the resonating element and not directly contact the housing and the resonating element.

    Filter assemblies, tuning elements and method of tuning a filter

    公开(公告)号:US10530027B2

    公开(公告)日:2020-01-07

    申请号:US16039366

    申请日:2018-07-19

    Abstract: The present invention provides filter assemblies, tuning elements and a method of tuning a filter. A filter assembly includes a housing having a top cover, a bottom cover and at least one sidewall, the top cover, the bottom cover and the at least one sidewall defining an internal cavity, the housing configured to receive first through third radio frequency (“RF”) transmission lines; a top metal sheet mounted within the internal cavity that has a plurality of openings that form a first hole pattern; and a bottom metal sheet mounted within the internal cavity that has a plurality of openings that form a second hole pattern. The top and bottom metal sheets are vertically spaced-apart from each other in a vertically stacked relationship within the internal cavity. The top metal sheet and the bottom metal sheet each include at least one resonator.

    Same-Band Combiner for Co-Sited Base Stations
    48.
    发明申请
    Same-Band Combiner for Co-Sited Base Stations 有权
    同频基站的同频带组合器

    公开(公告)号:US20170012337A1

    公开(公告)日:2017-01-12

    申请号:US15117839

    申请日:2015-04-13

    Inventor: Stefano TAMIAZZO

    Abstract: The invention is a compact three-port signal combiner suitable for use in a base station having two different wireless systems. The combiner is designed as a four-port network, but one of the ports is terminated with a predetermined load, thus leaving three ports for connection to user equipment. A first port (A) receives from an antenna a first input signal comprising first and second receive bands and transmits to the antenna a first output signal comprising a transmit band. A second port (R), connected to the first wireless system, outputs to the first wireless system a second output signal comprising the first and second receive bands. A third port (T\R) outputs, to the second wireless system, a third output signal comprising the first and second receive bands and receives from the second wireless system a second input signal that is to be transmitted from the first port.

    Abstract translation: 本发明是适用于具有两个不同无线系统的基站的紧凑型三端口信号组合器。 组合器被设计为四端口网络,但是其中一个端口以预定的负载终止,因此留下三个端口用于连接到用户设备。 第一端口(A)从天线接收包括第一和第二接收频​​带的第一输入信号,并向天线发送包括发射频带的第一输出信号。 连接到第一无线系统的第二端口(R)向第一无线系统输出包括第一和第二接收频​​带的第二输出信号。 第三端口(T \ R)向第二无线系统输出包括第一和第二接收频​​带的第三输出信号,并从第二无线系统接收将从第一端口发送的第二输入信号。

    Wide bandwidth folded metallized dielectric waveguide filters

    公开(公告)号:US11936086B2

    公开(公告)日:2024-03-19

    申请号:US17637296

    申请日:2020-09-17

    CPC classification number: H01P1/2088 H01P1/2002

    Abstract: A metallized dielectric waveguide filter includes an upper metallized dielectric waveguide having a plurality of upper resonant cavities, the upper metallized dielectric waveguide comprising an upper dielectric block having metallized outer walls, and a lower metallized dielectric waveguide having a plurality of lower resonant cavities, the lower metallized dielectric waveguide comprising a lower dielectric block having metallized outer walls. A first of the upper resonant cavities is operatively connected to a first of the lower resonant cavities via at least one coupling window. A first slot having metallized walls is provided in a portion of the upper dielectric block that is part of the first of the upper resonant cavities.

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