FILTERS INCLUDING DUAL CROSS-COUPLINGS AND RELATED COMBINERS

    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

    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.

    TUNABLE BANDPASS FILTER
    2.
    发明申请
    TUNABLE BANDPASS FILTER 审中-公开
    TUNABLE BANDPASS过滤器

    公开(公告)号:WO2012025946A1

    公开(公告)日:2012-03-01

    申请号:PCT/IT2010/000375

    申请日:2010-08-25

    Abstract: A bandpass filter has a combline structure having a plurality of cascaded nodes (503, 504, 506, 508 ). A plurality of nodes in the filter are connected both to resonant elements ( 514, 517 ) (a.k.a. resonators) and non-resonant elements ( 601, 604 ) (including elements having inductances and/or capacitances that do not resonate in a predetermined frequency band of interest). The resonant frequencies of the resonant elements may be adjusted, in order to adjust the location of the center frequency and/or the width of the passband of the filter. The characteristics of the resonant and non-resonant elements are selected such that the poles of the filter, when plotted on the complex plane, move substantially along the imaginary axis when the resonant frequencies are adjusted, without substantial movement along the real axis. The resulting bandpass filter has substantially constant losses and substantially constant absolute selectivity over a relatively wide range of bandwidths.

    Abstract translation: 带通滤波器具有具有多个级联节点(503,504,506,508)的组合结构。 滤波器中的多个节点都连接到谐振元件(514,517)(又称谐振器)和非谐振元件(601,604)(包括具有在预定频带中不谐振的电感和/或电容的元件 出于兴趣)。 可以调节谐振元件的谐振频率,以便调节滤波器的中心频率的位置和/或通带的宽度。 选择共振和非共振元件的特性,使得当绘制在复平面上时,滤波器的极点在谐振频率被调整时基本沿着虚轴移动,而不沿实际实质运动。 所得到的带通滤波器在相对宽的带宽范围内具有基本恒定的损耗和基本上恒定的绝对选择性。

    SAME-BAND COMBINER FOR CO-SITED BASE STATIONS
    3.
    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

    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。

    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING
    4.
    发明申请
    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING 审中-公开
    带有电感和电容耦合的串联滤波器

    公开(公告)号:WO2016096168A1

    公开(公告)日:2016-06-23

    申请号:PCT/EP2015/065916

    申请日:2015-07-10

    CPC classification number: H01P1/2053

    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.

    Abstract translation: 在线谐振器滤波器具有三个或更多导体的线性阵列。 第一对相邻的导体具有电感主耦合和相对带电容的主耦合,而第二对非相邻导体具有感性交叉耦合。 第一和第二对有一个共同的导体。 在第二对非相邻导体之间,没有提供相应的感应交叉耦合的直接欧姆连接。 相反的电容式主耦合补偿了第一对相邻导体之间的感应主耦合的至少一部分。 在线谐振滤波器能够提供一个或多个传输零点,而不需要在非相邻导体对之间提供直接欧姆连接的任何分立旁路连接器。 因此,在线谐振器滤波器可以更小,更不复杂,并且更不易受损坏。

    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING
    7.
    发明公开
    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING 审中-公开
    在线滤波器具有互补补偿电感耦合和电容耦合

    公开(公告)号:EP3235054A1

    公开(公告)日:2017-10-25

    申请号:EP15738313.4

    申请日:2015-07-10

    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.

    Abstract translation: 在线谐振器滤波器具有三个或更多导体的线性阵列。 第一对相邻的导体具有电感性主耦合和相反符号的电容性主耦合,而第二对不相邻的导体具有电感性交叉耦合。 第一和第二对有一个共同的导体。 在第二对不相邻的导体之间,没有提供相应的电感性交叉耦合的直接欧姆连接。 相反有符号的电容性主耦合补偿第一对相邻导体之间的电感性主耦合的至少一部分。 在线谐振器滤波器能够提供一个或多个传输零点,而不需要在成对的非相邻导体之间提供直接欧姆连接的任何分立旁路连接器。 因此,在线谐振器滤波器可以更小,更简单并且不易受损。

    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING

    公开(公告)号:EP3879622A1

    公开(公告)日:2021-09-15

    申请号:EP21170595.9

    申请日:2015-07-10

    Abstract: Provided an in-line resonator filter (400) comprising a linear array of three or more conductors (410), the linear array comprising:
    a first pair of adjacent conductors (410(1), 410(2)) having inductive main coupling and oppositely signed capacitive main coupling;
    a second pair of non-adjacent conductors (410(1) and 410(3)) having inductive cross-coupling, it is an objective of the present application to further allow the altering of the coupling within the resonator filter, and thereby tune the overall transfer function of the resonator filter to be different from the filter's inherent transfer function. The object is achieved by a first tuning element (422(3) and (4)) that extends from a bottom of the ground plane (402) of the in-line resonator filter; and
    a second tuning element (420) that extends from a top of the ground plane (404) of the in-line resonator filter; wherein:
    the first and second pairs have one conductor (410(1)) in common; and
    at least a portion of the oppositely signed capacitive main coupling compensates for at least a portion of the inductive main coupling between the first pair of adjacent conductors (410(1), 410(2)).

    IN-LINE FILTER HAVING MUTUALLY COMPENSATING INDUCTIVE AND CAPACITIVE COUPLING

    公开(公告)号:EP3691023A1

    公开(公告)日:2020-08-05

    申请号:EP20158254.1

    申请日:2015-07-10

    Abstract: An in-line resonator filter (400) comprising a linear array of three or more conductors (410), the linear array comprising: a first pair of adjacent conductors (410(1), 410(2)) having inductive main coupling and oppositely signed capacitive main coupling; a second pair of non-adjacent conductors (410(1), 410(3)) having inductive cross-coupling; and one or more tuning elements (422), each extending from a ground plane of the in-line resonator filter, wherein: the first and second pairs have one conductor (410(1)) in common; between the second pair of non-adjacent conductors, there is no direct ohmic connection that provides the corresponding inductive cross-coupling; and at least a portion of the oppositely signed capacitive main coupling compensates for at least a portion of the inductive main coupling between the first pair of adjacent conductors.

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