公开(公告)号：US20090134958A1

公开(公告)日：2009-05-28

申请号：US12273723

申请日：2008-11-19

申请人： Daisuke MITANI ,  Joji Fujiwara ,  Hiroyuki Nakamura ,  Toru Jibu

发明人： Daisuke MITANI ,  Joji Fujiwara ,  Hiroyuki Nakamura ,  Toru Jibu

IPC分类号： H03H9/00

CPC分类号： H03H9/02559 ,  H03H9/0576 ,  H03H9/1085 ,  H03H9/6483 ,  H03H9/725

摘要： A surface acoustic wave filter which includes a first terminal at the input side, a second terminal at the output side, a plurality of resonators electrically connected between the first and the second terminals, and a piezoelectric substrate provided on the upper surfaces of first and second terminals and the plurality of resonators. The piezoelectric substrate is made to have a thickness that is not thicker than 0.2 mm. The filtering characteristic of surface acoustic wave filter can be improved by taking advantage of the above structure.

摘要翻译： 一种表面声波滤波器，包括在输入侧的第一端子，在输出侧的第二端子，电连接在第一和第二端子之间的多个谐振器，以及设置在第一和第二端子的上表面上的压电基板 端子和多个谐振器。 压电基板的厚度不大于0.2mm。 通过利用上述结构可以改善表面声波滤波器的滤波特性。

公开(公告)号：US07898360B2

公开(公告)日：2011-03-01

申请号：US12273723

申请日：2008-11-19

申请人： Daisuke Mitani ,  Joji Fujiwara ,  Hiroyuki Nakamura ,  Toru Jibu

发明人： Daisuke Mitani ,  Joji Fujiwara ,  Hiroyuki Nakamura ,  Toru Jibu

IPC分类号： H03H9/72 ,  H03H9/64 ,  H03H9/05

CPC分类号： H03H9/02559 ,  H03H9/0576 ,  H03H9/1085 ,  H03H9/6483 ,  H03H9/725

摘要： A surface acoustic wave filter which includes a first terminal at the input side, a second terminal at the output side, a plurality of resonators electrically connected between the first and the second terminals, and a piezoelectric substrate provided on the upper surfaces of first and second terminals and the plurality of resonators. The piezoelectric substrate is made to have a thickness that is not thicker than 0.2 mm. The filtering characteristic of surface acoustic wave filter can be improved by taking advantage of the above structure.

摘要翻译： 一种表面声波滤波器，包括在输入侧的第一端子，在输出侧的第二端子，电连接在第一和第二端子之间的多个谐振器，以及设置在第一和第二端子的上表面上的压电基板 端子和多个谐振器。 压电基板的厚度不大于0.2mm。 通过利用上述结构可以改善表面声波滤波器的滤波特性。

公开(公告)号：US08531254B2

公开(公告)日：2013-09-10

申请号：US13040450

申请日：2011-03-04

申请人： Toru Yamaji ,  Koji Kawakita ,  Tetsuya Tsurunari ,  Joji Fujiwara ,  Toru Jibu

发明人： Toru Yamaji ,  Koji Kawakita ,  Tetsuya Tsurunari ,  Joji Fujiwara ,  Toru Jibu

IPC分类号： H03H9/10

CPC分类号： H03H9/1071 ,  H03H9/0547

摘要： An elastic wave device includes a piezoelectric substrate, an IDT electrode disposed on the piezoelectric substrate, an internal electrode disposed on the piezoelectric substrate and connected to the IDT electrode, a support pillar disposed on the piezoelectric substrate and provided around the IDT electrode, a top panel provided on the support pillar to cover a space above the IDT electrode, an insulation protector provided to cover the support pillar and the top panel, an external electrode disposed on the insulation protector, a conductor pattern disposed on the insulation protector in order to obtain inductance, and a connection electrode provided through the insulation protector, to connect the external electrode and the internal electrode to each other.

摘要翻译： 弹性波装置包括压电基板，设置在压电基板上的IDT电极，设置在压电基板上并连接到IDT电极的内部电极，设置在压电基板上并设置在IDT电极周围的支撑柱，顶部 设置在支撑柱上以覆盖IDT电极上方的空间的面板，设置成覆盖支撑柱和顶板的绝缘保护器，设置在绝缘保护器上的外部电极，设置在绝缘保护器上的导体图案，以获得 电感和通过绝缘保护器提供的连接电极，以将外部电极和内部电极彼此连接。

公开(公告)号：US08410865B2

公开(公告)日：2013-04-02

申请号：US12827091

申请日：2010-06-30

申请人： Toru Jibu ,  Shoji Okamoto ,  Yosuke Hamaoka ,  Hiroyuki Nakamura

发明人： Toru Jibu ,  Shoji Okamoto ,  Yosuke Hamaoka ,  Hiroyuki Nakamura

IPC分类号： H03H9/15 ,  H01L41/04

CPC分类号： H03H9/02992 ,  H03H9/725

摘要： A SAW filter includes a piezoelectric body, an IDT electrode on the piezoelectric body, and signal wiring electrically connected to the IDT electrode. The signal wiring has a thickness not less than a skin depth specified based on the frequency of a signal passing through the signal wiring and the electrical conductivity of the signal wiring. As a result, the signal wiring has low propagation loss of the signal passing through it, so that the SAW filter has excellent transmission characteristics.

摘要翻译： SAW滤波器包括压电体，压电体上的IDT电极和与IDT电极电连接的信号线。 信号布线的厚度不小于根据通过信号布线的信号的频率和信号布线的导电率而指定的皮肤深度。 结果，信号线路的信号传播损耗低，SAW滤波器具有优异的传输特性。

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。

公开(公告)号：US08421307B2

公开(公告)日：2013-04-16

申请号：US13206660

申请日：2011-08-10

申请人： Shoji Okamoto ,  Takashi Inoue ,  Takahiro Sato ,  Rei Goto ,  Hidehito Shimizu ,  Toru Jibu

发明人： Shoji Okamoto ,  Takashi Inoue ,  Takahiro Sato ,  Rei Goto ,  Hidehito Shimizu ,  Toru Jibu

IPC分类号： H01L41/08

CPC分类号： H03H9/02637 ,  H03H9/02921 ,  H03H9/14538

摘要： An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode, a reflector electrode, and a dummy electrode. The IDT electrode includes electrode fingers extending in a predetermined direction. The reflector electrode faces the IDT electrode across a gap. The dummy electrode is situated on a straight line extending in the predetermined direction through the gap. At least one of the distance between the dummy electrode and the IDT electrode and the distance between the dummy electrode and the reflector electrode is larger than the distance between the IDT electrode and the reflector electrode. This acoustic wave device prevents a short circuit between the IDT electrode and the reflector electrode, thereby avoiding a decrease in its yield.

摘要翻译： 声波装置包括压电基板，叉指式换能器（IDT）电极，反射器电极和虚拟电极。 IDT电极包括沿预定方向延伸的电极指。 反射器电极跨越间隙面对IDT电极。 虚拟电极位于沿预定方向延伸穿过间隙的直线上。 虚拟电极和IDT电极之间的距离和虚拟电极与反射器电极之间的距离中的至少一个大于IDT电极和反射器电极之间的距离。 该声波装置防止IDT电极和反射器电极之间的短路，从而避免其产量的降低。

公开(公告)号：US20120049690A1

公开(公告)日：2012-03-01

申请号：US13206660

申请日：2011-08-10

申请人： Shoji Okamoto ,  Takashi Inoue ,  Takahiro Sato ,  Rei Goto ,  Hidehito Shimizu ,  Toru Jibu

发明人： Shoji Okamoto ,  Takashi Inoue ,  Takahiro Sato ,  Rei Goto ,  Hidehito Shimizu ,  Toru Jibu

IPC分类号： H01L41/02

CPC分类号： H03H9/02637 ,  H03H9/02921 ,  H03H9/14538

摘要： An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode, a reflector electrode, and a dummy electrode. The IDT electrode includes electrode fingers extending in a predetermined direction. The reflector electrode faces the IDT electrode across a gap. The dummy electrode is situated on a straight line extending in the predetermined direction through the gap. At least one of the distance between the dummy electrode and the IDT electrode and the distance between the dummy electrode and the reflector electrode is larger than the distance between the IDT electrode and the reflector electrode. This acoustic wave device prevents a short circuit between the IDT electrode and the reflector electrode, thereby avoiding a decrease in its yield.

摘要翻译： 声波装置包括压电基板，叉指式换能器（IDT）电极，反射器电极和虚拟电极。 IDT电极包括沿预定方向延伸的电极指。 反射器电极跨越间隙面对IDT电极。 虚拟电极位于沿预定方向延伸穿过间隙的直线上。 虚拟电极和IDT电极之间的距离和虚拟电极与反射器电极之间的距离中的至少一个大于IDT电极和反射器电极之间的距离。 该声波器件防止IDT电极和反射器电极之间的短路，从而避免其产量的降低。

公开(公告)号：US20120032753A1

公开(公告)日：2012-02-09

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： H03H9/25

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。