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    Coaxial resonator having coupling electrodes and dielectric filter formed therefrom using the same
    1.
    发明授权
    Coaxial resonator having coupling electrodes and dielectric filter formed therefrom using the same 失效
    同轴谐振器具有耦合电极和由其形成的介质滤波器

    公开(公告)号：US5883554A

    公开(公告)日：1999-03-16

    申请号：US709871

    申请日：1996-09-10

    申请人： Kousuke Takeuchi ,  Yasumi Kobayashi ,  Yashuiro Hirao ,  Kenichi Shibata ,  Kazuhiro Kuroki

    发明人： Kousuke Takeuchi ,  Yasumi Kobayashi ,  Yashuiro Hirao ,  Kenichi Shibata ,  Kazuhiro Kuroki

    IPC分类号： H01P1/205 ,  H01P7/04 ,  H01P1/202

    CPC分类号： H01P7/04 ,  H01P1/2053 ,  H01P1/2056

    摘要： 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.

    摘要翻译： 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并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。

    Coaxial resonator and dielectric filter using the same
    2.
    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

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

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

    IPC分类号： H01P1205

    CPC分类号： H01P7/04 ,  H01P1/2053 ,  H01P1/2056

    摘要： 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.

    摘要翻译： 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。

    High frequency filter including both dielectric and surface acoustic wave resonators
    3.
    发明授权
    High frequency filter including both dielectric and surface acoustic wave resonators 失效
    高频滤波器包括电介质和声表面波谐振器

    公开(公告)号：US5808523A

    公开(公告)日：1998-09-15

    申请号：US963117

    申请日：1997-10-28

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

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

    IPC分类号： H01P1/205 ,  H01P5/08 ,  H03H9/64 ,  H01P1/202

    CPC分类号： H03H9/6483 ,  H01P1/2053

    摘要： A high-frequency filter having series and parallel electrode patterns formed on a mount substrate, surface acoustic wave resonators connected to a signal input/output line of the electrode patterns in series, and coaxial dielectric resonators having respective one input/output terminals connected to the signal input/output line and the other input/output terminals connected to a ground element. In such a composite high-frequency filter, the surface acoustic wave resonators form the resonators in the serial arms while the coaxial dielectric resonators form resonators in the parallel arms. The high-frequency filter can meet all the requirements of enhanced miniaturization, selectivity and power handling.

    摘要翻译： 具有形成在安装基板上的串联和并联电极图案的高频滤波器，连接到串联的电极图案的信号输入/输出线的表面声波谐振器和具有连接到电极图案的相应的一个输入/输出端子的同轴介质谐振器 信号输入/输出线和连接到接地元件的其他输入/输出端子。 在这种复合高频滤波器中，表面声波谐振器在串联臂中形成谐振器，而同轴介质谐振器在并联臂中形成谐振器。 高频滤波器可以满足增强的小型化，选择性和功率处理的所有要求。

    Surface acoustic waver convolver
    4.
    发明授权
    Surface acoustic waver convolver 失效
    表面声波卷积器

    公开(公告)号：US5675207A

    公开(公告)日：1997-10-07

    申请号：US650257

    申请日：1996-05-22

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

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

    IPC分类号： H03H9/145 ,  G06G7/195 ,  H03H9/72 ,  H03H9/76

    CPC分类号： H03H9/6486 ,  G06G7/195 ,  H03H9/76

    摘要： A surface acoustic wave convolver of the present invention includes, on a surface of a piezoelectric substrate, a pair of comb-like surface acoustic wave excitation electrodes 2 and 3, and a center electrode 4. The excitation electrodes 2 and 3 are disposed opposed to each other at a specified interval while the center electrode 4 having a shorter width than a length of the excitation electrodes 2 and 3 is positioned between the electrodes 2 and 3. The center electrode 4 propagates the surface acoustic waves respectively produced by the excitation electrodes 2 and 3 in reverse directions to each other to obtain a convolution output signal. A pair of reflectors 10 are positioned on opposite sides of a region defined between the excitation electrode 2 and one end of the center electrode 4 with a width equivalent to that of the center electrode 4. Also, a pair of reflectors 11 are positioned on opposite sides of a region defined between the excitation electrode 3 and the other end of the center electrode 4 with a width equivalent to that of the center electrode 4.

    摘要翻译： 本发明的声表面波卷积器在压电基板的表面上包括一对梳状表面声波激励电极2和3以及中心电极4.激励电极2和3相对于 彼此以指定的间隔彼此相对，而具有比激励电极2和3的长度更短的宽度的中心电极4位于电极2,3之间。中心电极4传播由激励电极2分别产生的表面声波 和3相反方向，以获得卷积输出信号。 一对反射器10位于激活电极2和中心电极4的一端之间的区域的相对侧上，其宽度与中心电极4的宽度相同。另外，一对反射器11位于相对的位置 在激励电极3和中心电极4的另一端之间限定的区域的宽度相当于中心电极4的宽度。

    Dielectric filter having corresponding individual external and ground electrodes formed on a dielectric substrate
    5.
    发明授权
    Dielectric filter having corresponding individual external and ground electrodes formed on a dielectric substrate 失效
    介质滤波器，其具有形成在电介质基片上的对应的各个外部和接地电极

    公开(公告)号：US5422612A

    公开(公告)日：1995-06-06

    申请号：US124487

    申请日：1993-09-22

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

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

    IPC分类号： H01P1/205 ,  H01P1/213

    CPC分类号： H01P1/2136 ,  H01P1/2053

    摘要： 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.

    摘要翻译： 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 。

    Surface acoustic wave filter utilizing a transducer having interdigital electrodes and continuously adjacent electrodes
    6.
    发明授权
    Surface acoustic wave filter utilizing a transducer having interdigital electrodes and continuously adjacent electrodes 失效
    表面声波滤波器利用具有叉指电极和连续相邻电极的换能器

    公开(公告)号：US5844453A

    公开(公告)日：1998-12-01

    申请号：US654608

    申请日：1996-05-29

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

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

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

    CPC分类号： H03H9/6466 ,  H03H9/14552 ,  H03H9/25 ,  H03H9/6473 ,  H03H9/6483

    摘要： A surface acoustic wave filter according to the present invention has 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 a 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.

    摘要翻译： 根据本发明的表面声波滤波器具有一个或多个滤波器功能单元，每个滤波器功能单元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。

    Integrated interdigital electrode saw filter with specified distances between input/output electrodes
    8.
    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

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

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

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

    CPC分类号： H03H9/6466 ,  H03H9/14552 ,  H03H9/25 ,  H03H9/6473 ,  H03H9/6483

    摘要： 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.

    摘要翻译： 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。