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    Coaxial resonator and dielectric filter using the same
    11.
    发明授权
    Coaxial resonator and dielectric filter using the same 失效
    同轴谐振器和介质滤波器使用相同

    公开(公告)号：US06191668B1

    公开(公告)日：2001-02-20

    申请号：US09158065

    申请日：1998-09-22

    Applicant: Kousuke Takeuchi ,  Yasumi Kobayashi ,  Yasuhiro Hirao ,  Kenichi Shibata ,  Kazuhiro Kuroki

    Inventor： Kousuke Takeuchi ,  Yasumi Kobayashi ,  Yasuhiro Hirao ,  Kenichi Shibata ,  Kazuhiro Kuroki

    IPC: H01P1205

    CPC classification number: H01P7/04 ,  H01P1/2053 ,  H01P1/2056

    Abstract: A coaxial resonator according to the present invention has an outer conductor on an outer peripheral surface of a dielectric block having at least four side surfaces and having a through hole provided in its approximately central part and an inner conductor on an inner peripheral surface of the through hole, and one of two end faces perpendicular to the through hole is opened and the other end face is short-circuited. A pair of an input electrode and an output electrode which are not brought into electrical contact with the outer conductor and are independent of each other is provided in a position in proximity to the opened end face on the outer peripheral surface of the dielectric block, and respective portions of both the electrodes are extended to the side surfaces, which are respectively adjacent to the electrodes, of the dielectric block. Consequently, the input electrode and the output electrode are capacitively coupled to each other, and the input electrode and the output electrode are respectively capacitively coupled to the inner conductor. Coupling capacitance can be adjusted by the areas of the electrodes.

    Abstract translation: 根据本发明的同轴谐振器具有在介质块的外周面上具有至少四个侧表面的外导体，并且在其大致中央部设置有通孔，并且在通孔的内周面上具有内导体 并且与通孔垂直的两个端面之一被打开，另一个端面短路。 在介质块的外周面的开口端面附近的位置设置一对未与外导体电接触且彼此独立的输入电极和输出电极， 两个电极的相应部分延伸到介质块的与电极相邻的侧表面。 因此，输入电极和输出电极彼此电容耦合，并且输入电极和输出电极分别电容耦合到内导体。 耦合电容可以通过电极的面积进行调节。

    Integrated interdigital electrode saw filter with specified distances between input/output electrodes
    12.
    发明授权
    Integrated interdigital electrode saw filter with specified distances between input/output electrodes 有权
    输入/输出电极之间具有特定距离的集成叉指电极锯过滤器

    公开(公告)号：US6034577A

    公开(公告)日：2000-03-07

    申请号：US158071

    申请日：1998-09-22

    Applicant: Kuniyuki Matsui ,  Yasuhiro Hirao ,  Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kenichi Shibata

    Inventor： Kuniyuki Matsui ,  Yasuhiro Hirao ,  Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kenichi Shibata

    IPC: H03H9/145 ,  H03H9/25 ,  H03H9/64

    CPC classification number: H03H9/6466 ,  H03H9/14552 ,  H03H9/25 ,  H03H9/6473 ,  H03H9/6483

    Abstract: A surface acoustic wave filter having one or a plurality of filter functional units each comprising a series arm resonator and a parallel arm resonator. Each of the series arm resonator and the parallel arm resonator is constituted by an interdigital transducer and grating reflectors formed on a piezoelectric substrate composed of 64.degree.-rotated Y-cut X-propagating LiNbO.sub.3. The series arm resonator is constructed by electrically connecting a one-port resonator in series with a signal line, and the parallel arm resonator is constructed by electrically connecting a one-port resonator in parallel with the signal line. In the interdigital transducer in the series arm resonator and/or the parallel arm resonator, one or more sets of electrode fingers continuously adjacent to each other are formed.

    Abstract translation: 具有一个或多个滤波器功能单元的表面声波滤波器，每个滤波器功能单元均包括串联臂谐振器和并联臂谐振器。 串联臂谐振器和并联臂谐振器中的每一个由形成在由64°旋转Y切X传播LiNbO 3组成的压电基板上的叉指式换能器和光栅反射器构成。 串联臂谐振器通过将单端口谐振器与信号线串联电连接而构成，并联臂谐振器通过将一端口谐振器与信号线并联电连接而构成。 在串联臂谐振器和/或并联臂谐振器中的叉指式换能器中，形成连续相邻的一组或多组电极指。

    Antenna duplexer
    16.
    发明授权
    Antenna duplexer 失效
    天线双工器

    公开(公告)号：US5534829A

    公开(公告)日：1996-07-09

    申请号：US249012

    申请日：1994-05-25

    Applicant: Yasumi Kobayashi ,  Kousuke Takeuchi ,  Yasuhiro Hirao ,  Kenichi Shibata

    Inventor： Yasumi Kobayashi ,  Kousuke Takeuchi ,  Yasuhiro Hirao ,  Kenichi Shibata

    IPC: H01P1/00 ,  H01P1/205 ,  H01P1/213 ,  H01P5/08

    CPC classification number: H01P1/2136

    Abstract: An object of the present invention is to improve the characteristics of the conventional antenna duplexer and to provide an antenna duplexer contributing to higher performance and smaller size of a mobile communication apparatus. The antenna duplexer has a filter for wave receiving and a filter for wave transmission, and respective one ends of both the filters are connected to an antenna shared terminal through a matching circuit constituted by transmission lines. The characteristic impedance of at least one of a transmission line for connecting the antenna shared terminal and the filter for wave receiving to each other and a transmission line for connecting the antenna shared terminal and the filter for wave transmission to each other is set to a value other than the standard characteristic impedance of a receiver circuit and a transmitter circuit connected to the antenna duplexer. The total impedance of the filters for wave transmission and wave receiving and the respective transmission lines is set to the standard characteristic impedance.

    Abstract translation: 本发明的目的是提高传统天线双工器的特性并提供一种有助于移动通信设备的更高性能和更小尺寸的天线双工器。 天线双工器具有用于波接收的滤波器和用于波传输的滤波器，并且两个滤波器的相应一端通过由传输线构成的匹配电路连接到天线共享终端。 将用于将天线共享终端和用于波接收的滤波器相互连接的传输线中的至少一个和用于将天线共享终端和用于波传输的滤波器连接的传输线彼此的特征阻抗设置为值 不同于接收机电路的标准特性阻抗和连接到天线双工器的发射机电路。 用于波传输和波接收的滤波器和各个传输线的总阻抗被设置为标准特性阻抗。

    Dielectric filter comprising a plurality of coaxial resonators of different lengths all having the same resonant frequency
    17.
    发明授权
    Dielectric filter comprising a plurality of coaxial resonators of different lengths all having the same resonant frequency 失效
    介质滤波器包括具有相同谐振频率的不同长度的多个同轴谐振器

    公开(公告)号：US5345202A

    公开(公告)日：1994-09-06

    申请号：US124481

    申请日：1993-09-22

    Applicant: Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kachio Ikeda ,  Kenichi Shibata ,  Kazuhiko Kuroki

    Inventor： Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kachio Ikeda ,  Kenichi Shibata ,  Kazuhiko Kuroki

    IPC: H01P1/205 ,  H01P1/213

    CPC classification number: H01P1/2136 ,  H01P1/2053

    Abstract: In a dielectric filter according to the present invention, a depressed part is formed by removing a portion of an outer peripheral conductor on the open face side of each of a plurality of one-end face short-circuited type coaxial resonators or a portion of the outer peripheral conductor including a dielectric member. A dielectric substrate having a plurality of capacitance forming electrodes for forming antiresonance capacitances between the electrodes and inner peripheral conductors of the coaxial resonators formed thereon is mounted on the depressed part, and a reactance element for coupling the capacitance forming electrodes is provided on the dielectric substrate.

    Abstract translation: 在根据本发明的介质滤波器中，通过去除多个单端面短路型同轴谐振器中的每一个的开放面侧的外周导体的一部分或部分 外周导体包括电介质构件。 具有多个电容形成电极的电介质基板安装在凹部上，并且在电介质基板上设置用于耦合电容形成电极的电抗元件，该多个电容形成电极用于在电极和形成于其上的同轴谐振器的内周导体之间形成反谐振电容 。

    Dielectric filter having external connection terminals on dielectric substrate and antenna duplexer using the same
    18.
    发明授权
    Dielectric filter having external connection terminals on dielectric substrate and antenna duplexer using the same 失效
    介质滤波器，在电介质基板上具有外部连接端子，并使用该外部连接端子

    公开(公告)号：US5293141A

    公开(公告)日：1994-03-08

    申请号：US853049

    申请日：1992-03-18

    Applicant: Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kachio Ikeda ,  Kenichi Shibata ,  Kazuhiko Kuroki

    Inventor： Yasumi Kobayashi ,  Kousuke Takeuchi ,  Kachio Ikeda ,  Kenichi Shibata ,  Kazuhiko Kuroki

    IPC: H01P1/205 ,  H01P1/213

    CPC classification number: H01P1/2136 ,  H01P1/2053

    Abstract: In a dielectric filter according to the present invention, a depressed part is formed by removing a portion of an outer peripheral conductor on the open face side of each of a plurality of one-end face short-circuited type coaxial resonators or a portion of the outer peripheral conductor including a dielectric member. A dielectric substrate having a plurality of capacitance forming electrodes for forming antiresonance capacitances between the electrodes and inner peripheral conductors of the coaxial resonators formed thereon is mounted on the depressed part, and a reactance element for coupling the capacitance forming electrodes is provided on the dielectric substrate.

    Abstract translation: 在根据本发明的介质滤波器中，通过去除多个单端面短路型同轴谐振器中的每一个的开放面侧的外周导体的一部分或部分 外周导体包括电介质构件。 具有多个电容形成电极的电介质基板安装在凹部上，并且在电介质基板上设置用于耦合电容形成电极的电抗元件，该多个电容形成电极用于在电极和形成于其上的同轴谐振器的内周导体之间形成反谐振电容 。

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