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    MULTIPLEXER AND MODULE
    3.
    发明申请
    MULTIPLEXER AND MODULE 审中-公开
    多路复用器和模块

    公开(公告)号：US20170063337A1

    公开(公告)日：2017-03-02

    申请号：US15168554

    申请日：2016-05-31

    申请人： TAIYO YUDEN CO., LTD.

    发明人： Hiroshi HARA ,  Yasuhisa OKAMOTO ,  Naoki TAKAHASHI

    IPC分类号： H03H9/64 ,  H03H9/05 ,  H03H9/54 ,  H03H9/205

    CPC分类号： H03H9/6483 ,  H03H9/0571 ,  H03H9/0576 ,  H03H9/6433 ,  H03H9/6479 ,  H03H9/703 ,  H03H9/72

    摘要： A multiplexer includes: one or more transmit filters that are connected between an antenna terminal and one or more transmit terminals; one or more receive filters that are connected between the antenna terminal and one or more receive terminals; and a circuit that includes a longitudinally coupled acoustic wave filter and is connected in parallel to one or more series resonators of a first filter that is one of the one or more transmit filters and the one or more receive filters and includes the one or more series resonators and one or more parallel resonators each formed of a piezoelectric thin film resonator, wherein the longitudinally coupled acoustic wave filter is formed of IDTs formed on a chip of a second filter that is another one of the one or more transmit filters and the one or more receive filters and formed of a surface acoustic wave resonator.

    摘要翻译： 多路复用器包括：连接在天线端子和一个或多个发射端之间的一个或多个发射滤波器; 连接在天线端子与一个或多个接收端子之间的一个或多个接收滤波器; 以及电路，其包括纵向耦合的声波滤波器并且并联连接到作为所述一个或多个发射滤波器和所述一个或多个接收滤波器之一的第一滤波器的一个或多个串联谐振器，并且包括所述一个或多个串联 谐振器和一个或多个平行谐振器，每个谐振器由压电薄膜谐振器形成，其中纵向耦合的声波滤波器由形成在作为一个或多个发射滤波器中的另一个的第二滤波器的芯片上形成的IDT形成， 更多的接收滤波器并由声表面波谐振器形成。

    HIGH-FREQUENCY MODULE
    4.
    发明申请
    HIGH-FREQUENCY MODULE 有权
    高频模块

    公开(公告)号：US20160028365A1

    公开(公告)日：2016-01-28

    申请号：US14878082

    申请日：2015-10-08

    申请人： Murata Manufacturing Co., Ltd.

    发明人： Morio TAKEUCHI

    IPC分类号： H03H9/00 ,  H03H9/25 ,  H03H9/46

    CPC分类号： H03H9/725 ,  H03H9/0009 ,  H03H9/0057 ,  H03H9/0576 ,  H03H9/25 ,  H03H9/46 ,  H03H9/52 ,  H03H9/64 ,  H03H9/6423 ,  H03H9/6433 ,  H03H9/6479 ,  H03H9/6489 ,  H04B1/18

    摘要： A high-frequency module includes a filter unit and first and second external connection terminals. The filter unit includes first and second terminals and a plurality of SAW resonators. The plurality of SAW resonators are connected to one another by connection conductors. A matching element is connected between the first terminal and the first external connection terminal, and a matching element is connected between the second terminal and the second external connection terminal. At least one of the matching elements is inductively coupled or capacitively coupled to at least one of the connection conductors located at a position such that at least one of the SAW resonators is interposed between the matching element and the connection conductor.

    摘要翻译： 高频模块包括滤波器单元和第一和第二外部连接端子。 滤波器单元包括第一和第二端子以及多个SAW谐振器。 多个SAW谐振器通过连接导体相互连接。 匹配元件连接在第一端子和第一外部连接端子之间，并且匹配元件连接在第二端子和第二外部连接端子之间。 至少一个匹配元件被感应耦合或电容耦合到位于一个位置处的至少一个连接导体，使得至少一个SAW谐振器插入在匹配元件和连接导体之间。

    SURFACE ACOUSTIC WAVE FILTER AND MULTISTAGE SURFACE ACOUSTIC WAVE FILTER
    5.
    发明申请
    SURFACE ACOUSTIC WAVE FILTER AND MULTISTAGE SURFACE ACOUSTIC WAVE FILTER 有权
    表面声波滤波器和多表面声波滤波器

    公开(公告)号：US20020014934A1

    公开(公告)日：2002-02-07

    申请号：US09390653

    申请日：1999-09-07

    发明人： HIROYUKI NAKAMURA ,  TORU YAMADA ,  KAZUNORI NISHIMURA ,  TOSHIO ISHIZAKI

    IPC分类号： H03H009/64

    CPC分类号： H03H9/6443 ,  H03H9/0028 ,  H03H9/02763 ,  H03H9/02913 ,  H03H9/02992 ,  H03H9/14588 ,  H03H9/14597 ,  H03H9/6463 ,  H03H9/6479

    摘要： A surface acoustic wave resonator is constituted by an IDT electrode and reflector electrodes disposed on both sides thereof, on a piezoelectric substrate. Two of said surface acoustic wave resonators are disposed nearby so that the propagation directions of the respective surface acoustic waves are in parallel to each other to make acoustic couple to constitute a surface acoustic wave filter having plural exciting modes with different propagation frequencies. The bus bar electrodes of each of two IDT electrodes are electrically separated from each other, and the leading out electrodes led out from at least two spots on those bus bar electrodes are electrically connected to each other, by which one side of the balanced input and output terminal. As a result, the electrode resistance of the IDT electrode is alleviated to make the insertion loss less.

    摘要翻译： 表面声波谐振器由压电基板上的IDT电极和设置在其两侧的反射器电极构成。 两个所述表面声波谐振器被设置在附近，使得各声表面波的传播方向彼此平行，以使声耦合构成具有不同传播频率的多个激励模式的表面声波滤波器。 两个IDT电极中的每一个的汇流条电极彼此电分离，并且从那些汇流条电极上的至少两个点引出的引出电极彼此电连接，平衡输入的一侧和 输出端子。 结果，减轻了IDT电极的电极电阻，使插入损耗减小。

    Surface acoustic wave filter
    6.
    发明授权
    Surface acoustic wave filter 失效
    表面声波滤波器

    公开(公告)号：US5932950A

    公开(公告)日：1999-08-03

    申请号：US693383

    申请日：1996-08-06

    申请人： Toru Yamada ,  Toshio Ishizaki ,  Kazunori Nishimura ,  Kozo Murakami

    发明人： Toru Yamada ,  Toshio Ishizaki ,  Kazunori Nishimura ,  Kozo Murakami

    IPC分类号： H03H7/38 ,  H03H9/00 ,  H03H9/05 ,  H03H9/64 ,  H01L41/08

    CPC分类号： H03H9/6479 ,  H03H9/0028 ,  H03H9/0542 ,  H03H9/14591 ,  H03H9/14597 ,  H03H9/6433 ,  H03H9/6463 ,  H03H7/38

    摘要： A SAW resonator disposed with an IDT electrode and reflector electrodes is formed on the surface of a piezoelectric substrate. Three pieces of the SAW resonator form an acoustic coupling by being disposed close to each other, electrode fingers comprising the IDT electrode in the center are all grounded, and IDT electrode fingers are electrically independent on the side to be connected to input-output terminals of the IDT electrodes disposed outside. As a result, three excitation modes having different propagation frequencies are generated which are used to attain a broad band SAW resonator filter. When these three pairs of the IDT electrode are electrically independent, a balanced input-output can be achieved, and excellent out-of-band rejection characteristics can be obtained.

    摘要翻译： 设置有IDT电极和反射器电极的SAW谐振器形成在压电基板的表面上。 三个SAW谐振器通过彼此靠近地布置形成声耦合，包括中心的IDT电极的电极指全部接地，并且IDT电极指在与要连接到的输入输出端子 IDT电极位于外部。 结果，产生了具有不同传播频率的三种激励模式，用于获得宽带SAW谐振滤波器。 当这三对IDT电极是电独立的时，可以实现平衡的输入 - 输出，并且可以获得优异的带外抑制特性。

    Antenna sharer with a ladder filter
    8.
    发明授权
    Antenna sharer with a ladder filter 有权
    天线分享器与梯形滤波器

    公开(公告)号：US08723620B2

    公开(公告)日：2014-05-13

    申请号：US13265338

    申请日：2010-04-21

    申请人： Kazunori Nishimura ,  Toru Jibu ,  Tetsuya Tsurunari

    发明人： Kazunori Nishimura ,  Toru Jibu ,  Tetsuya Tsurunari

    IPC分类号： H03H9/00 ,  H01P5/12

    CPC分类号： H03H9/1452 ,  H03H9/008 ,  H03H9/02803 ,  H03H9/14526 ,  H03H9/643 ,  H03H9/6456 ,  H03H9/6479 ,  H03H9/725

    摘要： An antenna sharer with both low loss and sharp attenuation characteristic in a wide band is achieved. Antennal sharer 1 of the present invention includes first filter 3 for passing a signal in the first frequency band, and second filter 4 for passing a signal in the second frequency band higher than the first frequency band. First filter 3 includes a ladder filter that includes first series resonator 6 and second series resonator 7 with an antiresonant frequency point higher than antiresonant frequency of first series resonator. Electromechanical coupling coefficient of first series resonator 6 is smaller than electromechanical coupling coefficient of second series resonator 7.

    摘要翻译： 实现了在宽带中具有低损耗和尖锐衰减特性的天线共享器。 本发明的天线共享器1包括用于使第一频带中的信号通过的第一滤波器3和用于使比第一频带高的第二频带中的信号通过的第二滤波器4。 第一滤波器3包括梯形滤波器，其包括具有比第一串联谐振器的反谐振频率高的反谐振频率点的第一串联谐振器6和第二串联谐振器7。 第一串联谐振器6的机电耦合系数小于第二串联谐振器7的机电耦合系数。

    Surface acoustic wave filter and multistage surface acoustic wave filter
    10.
    发明授权
    Surface acoustic wave filter and multistage surface acoustic wave filter 有权
    表面声波滤波器和多级表面声波滤波器

    公开(公告)号：US06351196B1

    公开(公告)日：2002-02-26

    申请号：US09390653

    申请日：1999-09-07

    申请人： Hiroyuki Nakamura ,  Toru Yamada ,  Kazunori Nishimura ,  Toshio Ishizaki

    发明人： Hiroyuki Nakamura ,  Toru Yamada ,  Kazunori Nishimura ,  Toshio Ishizaki

    IPC分类号： H03H964

    CPC分类号： H03H9/6443 ,  H03H9/0028 ,  H03H9/02763 ,  H03H9/02913 ,  H03H9/02992 ,  H03H9/14588 ,  H03H9/14597 ,  H03H9/6463 ,  H03H9/6479

    摘要： Disclosed is a surface acoustic wave filter on a piezoelectric substrate. The filter includes at least two surface acoustic wave resonators that each has a reflector electrode on both sides of an IDT electrode as an inter-digital transducer electrode. At least two of the resonators are disposed on a piezoelectric substrate in positions near each other so that the propagation direction of surface acoustic waves are in parallel to make an acoustic coupling. In an embodiment, the acoustic coupling is a direct coupling. The IDT electrode has a plurality of electrode fingers connected so as not to cancel respective electric charges. The IDT electrode is constituted by at least three divisional IDT electrodes. A pair of the electrode fingers can have a reverse phase relation with respect to each other. Also, in a multi-stage surface acoustic wave filter, the electrode fingers can be included in an upper IDT electrode of a top stage of the filter, and in a lower IDT electrode of a bottom stage of such filter.

    摘要翻译： 公开了压电基板上的表面声波滤波器。 滤波器包括至少两个表面声波谐振器，每个表面声波谐振器在IDT电极的两侧上具有作为数字间换能器电极的反射器电极。 至少两个谐振器在彼此相邻的位置处设置在压电基板上，使得声表面波的传播方向平行以形成声耦合。 在一个实施例中，声耦合是直接耦合。 IDT电极具有连接成不抵消各自的电荷的多个电极指。 IDT电极由至少三个分开的IDT电极构成。 一对电极指可以相对于彼此具有反相位关系。 此外，在多级表面声波滤波器中，电极指可以包括在过滤器的顶级的上部IDT电极中，并且可以包括在该过滤器的底部的下部IDT电极中。