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    In-line filter having mutually compensating inductive and capacitive coupling
    62.
    发明授权
    In-line filter having mutually compensating inductive and capacitive coupling 有权

    公开(公告)号：US10236550B2

    公开(公告)日：2019-03-19

    申请号：US15529775

    申请日：2015-07-10

    Applicant: CommScope Italy S.r.l.

    Inventor： Stefano Tamiazzo ,  Giuseppe Resnati

    IPC: H01P1/205

    Abstract: An in-line resonator filter has a linear array of three or more conductors. A first pair of adjacent conductors has inductive main coupling and oppositely signed capacitive main coupling, while a second pair of non-adjacent conductors has inductive cross-coupling. The first and second pairs have one conductor in common. Between the second pair of non-adjacent conductors, there is no direct ohmic connection that provides the corresponding inductive cross-coupling. The oppositely signed capacitive main coupling compensates for at least a portion of the inductive main coupling between the first pair of adjacent conductors. The in-line resonator filter is able to provide one or more transmission zeros without requiring any discrete bypass connectors that provide direct ohmic connection between pairs of non-adjacent conductors. As such, the in-line resonator filters can be smaller, less complex, and less susceptible to damage.

    Multi-band combiner with PIM detection
    64.
    发明授权
    Multi-band combiner with PIM detection 有权

    公开(公告)号：US10090938B2

    公开(公告)日：2018-10-02

    申请号：US15526592

    申请日：2015-01-06

    Applicant: CommScope Italy S.R.L.

    Inventor： Sammit A. Patel ,  Ray K. Butler ,  John W. Brunner ,  Xiaohua Hou

    IPC: H04B1/18 ,  H04B15/04 ,  G01R23/20 ,  H04B1/26 ,  H04B17/12 ,  H04B1/00

    Abstract: For wireless cellular communications, a “smart” multi-band combiner system has a multi-band combiner and a passive inter-modulation (PIM) detection sub-system. The multi-band combiner combines multiple transmit signals in different downlink frequency bands into a single, multi-band transmit signal for transmission from a cell tower antenna. The PIM detection sub-system characterizes the frequency components in the multi-band transmit signal to predict PIM products and determine if any predicted PIM products might interfere with any receive signals in any uplink frequency bands. If so, the PIM detection sub-system generates a signal indicating the presence of such predicted interfering PIM products, and the system installer and/or the network administrator can take remedial action to prevent the PIM products from interfering with user communications.

    FILTER ASSEMBLIES, TUNING ELEMENTS AND METHOD OF TUNING A FILTER
    66.
    发明申请
    FILTER ASSEMBLIES, TUNING ELEMENTS AND METHOD OF TUNING A FILTER 审中-公开
    滤波器组件，调谐元件和调谐滤波器的方法

    公开(公告)号：WO2017080525A1

    公开(公告)日：2017-05-18

    申请号：PCT/CN2016/105712

    申请日：2016-11-14

    Applicant: COMMSCOPE ITALY S.R.L. ,  XU, Yongjie

    Inventor： XU, Yongjie ,  TKADLEC, Roman ,  BROWN, Richard ,  RESNATI, Giuseppe ,  PARIMBELLI, Omar ,  PATEL, Sammit

    IPC: H01P1/207 ,  H01P7/10

    CPC classification number: H01P1/207 ,  H01P1/20345 ,  H01P1/2135 ,  H01P1/2138 ,  H01P7/06

    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.

    Abstract translation: 本发明提供了滤波器组件，调谐元件和调谐滤波器的方法。 过滤器组件包括具有顶盖，底盖和至少一个侧壁的外壳，顶盖，底盖和至少一个侧壁限定了内腔，外壳构造成接收第一至第三射频（“ ; RF“）传输线; 安装在所述内腔内的顶部金属片，所述顶部金属片具有形成第一孔图案的多个开口; 以及安装在内腔内的底部金属片，其具有形成第二孔图案的多个开口。 顶部和底部金属片在内腔内以垂直堆叠关系彼此垂直间隔开。 顶部金属片和底部金属片每个都包括至少一个谐振器。

    SAME-BAND COMBINER FOR CO-SITED BASE STATIONS
    67.
    发明申请
    SAME-BAND COMBINER FOR CO-SITED BASE STATIONS 审中-公开
    合作基地台的同伴组合机

    公开(公告)号：WO2015159316A1

    公开(公告)日：2015-10-22

    申请号：PCT/IT2015/000105

    申请日：2015-04-13

    Applicant: COMMSCOPE ITALY S.R.L.

    Inventor： TAMIAZZO, Stefano

    IPC: H01P1/203 ,  H03H7/12

    CPC classification number: H01P5/12 ,  G06F17/5009 ,  G06F2217/16 ,  H01P1/20 ,  H01P1/2053 ,  H01P1/207 ,  H01P11/007 ,  H04W88/08

    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。

    FILTERS INCLUDING DUAL CROSS-COUPLINGS AND RELATED COMBINERS
    68.
    发明申请
    FILTERS INCLUDING DUAL CROSS-COUPLINGS AND RELATED COMBINERS 审中-公开

    公开(公告)号：WO2022238396A1

    公开(公告)日：2022-11-17

    申请号：PCT/EP2022/062630

    申请日：2022-05-10

    Applicant: COMMSCOPE ITALY S.R.L.

    Inventor： TAMIAZZO, Stefano ,  BURATO, Gabriele ,  ACCARINO, Stefano

    IPC: H01P1/205 ,  H01P1/213 ,  H01P1/2056

    Abstract: Filters include first through fourth resonant cavities, an input that extends into the first resonant cavity, and an output that extends from the fourth resonant cavity. The first resonant cavity is configured to couple with the second and third resonant cavities, the second resonant cavity is configured to couple with the third and fourth resonant cavities, and the third resonant cavity is configured to couple with the fourth resonant cavity. A magnitude of the coupling between the first and third resonant cavities is configured to be substantially equal to a second magnitude of the coupling between the second and fourth resonant cavities. Combiners that include such filters are also provided.

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