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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
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。
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公开(公告)号：US20110001578A1
公开(公告)日：2011-01-06
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： H03H9/64
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。
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公开(公告)号：US08669832B2
公开(公告)日：2014-03-11
申请号：US13125633
申请日：2010-02-23
CPC分类号： H03H9/02992 , H03H3/08 , H03H9/02685 , H03H9/14517
摘要： An acoustic wave device includes an interdigital transducer (IDT) electrode and a separate electrode facing the IDT electrode. The IDT electrode includes first and second comb-shaped electrode facing each other. The first comb-shaped electrode includes a first bus bar, first interdigitated electrode fingers, and first dummy electrode fingers. The second comb-shaped electrode includes a second bus bar second interdigitated electrode fingers interdigitated with the first interdigitated electrode fingers, second dummy electrode fingers facing the first interdigitated electrode fingers, weighted parts, and a non-weighted part. The weighted parts have electrodes at spaces between the second interdigitated electrode fingers and the second dummy electrode fingers. In the non-weighted part, there is no electrode at a space out of the spaces which is closest to the separate electrode in the non-interdigitated region. This acoustic wave device prevents short circuits between the IDT electrode and the separate electrode, and provides excellent characteristics of suppressing unwanted waves.
摘要翻译： 声波装置包括叉指式换能器（IDT）电极和面向IDT电极的单独电极。 IDT电极包括彼此面对的第一和第二梳状电极。 第一梳状电极包括第一汇流条，第一交叉指状电极指和第一虚拟电极指。 所述第二梳状电极包括与所述第一交叉指状物电极指相交叉的第二汇流条第二交叉指状电极指，所述第二虚拟电极指指向所述第一交叉指状电极指，所述加权部和非加权部。 加权部分在第二交叉指状电极指和第二虚拟电极指之间的空间具有电极。 在非加重部分中，在非叉指区域中最靠近分离电极的空间之外的空间中不存在电极。 该声波装置防止IDT电极和分离电极之间的短路，并且提供抑制不想要的波的优良特性。
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公开(公告)号：US20110193655A1
公开(公告)日：2011-08-11
申请号：US13125633
申请日：2010-02-23
IPC分类号： H03H9/54
CPC分类号： H03H9/02992 , H03H3/08 , H03H9/02685 , H03H9/14517
摘要： An acoustic wave device includes an interdigital transducer (IDT) electrode and a separate electrode facing the IDT electrode. The IDT electrode includes first and second comb-shaped electrode facing each other. The first comb-shaped electrode includes a first bus bar, first interdigitated electrode fingers, and first dummy electrode fingers. The second comb-shaped electrode includes a second bus bar second interdigitated electrode fingers interdigitated with the first interdigitated electrode fingers, second dummy electrode fingers facing the first interdigitated electrode fingers, weighted parts, and a non-weighted part. The weighted parts have electrodes at spaces between the second interdigitated electrode fingers and the second dummy electrode fingers. In the non-weighted part, there is no electrode at a space out of the spaces which is closest to the separate electrode in the non-interdigitated region. This acoustic wave device prevents short circuits between the IDT electrode and the separate electrode, and provides excellent characteristics of suppressing unwanted waves.
摘要翻译： 声波装置包括叉指式换能器（IDT）电极和面向IDT电极的单独电极。 IDT电极包括彼此面对的第一和第二梳状电极。 第一梳状电极包括第一汇流条，第一交叉指状电极指和第一虚拟电极指。 所述第二梳状电极包括与所述第一交叉指状物电极指相交叉的第二汇流条第二交叉指状电极指，所述第二虚拟电极指指向所述第一交叉指状电极指，所述加权部和非加权部。 加权部分在第二交叉指状电极指和第二虚拟电极指之间的空间具有电极。 在非加重部分中，在非叉指区域中最靠近分离电极的空间之外的空间中不存在电极。 该声波装置防止IDT电极和分离电极之间的短路，并且提供抑制不想要的波的优良特性。
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5.发明申请公开(公告)号：US20120139662A1
公开(公告)日：2012-06-07
申请号：US13390115
申请日：2010-10-29
CPC分类号： H03H9/02559 , H03H9/1452 , H03H9/64
摘要： An acoustic wave device (5) includes a piezoelectric substrate (6) made of a lithium niobate material having the Euler angles (φ, θ, ψ), an electrode (7) disposed on the piezoelectric substrate (6) for exciting a major acoustic wave of a wavelength λ, and a protective layer (8) disposed on the piezoelectric substrate (6) to cover the electrode (7). The protective layer (8) has a thickness greater than 0.27λ. The Euler angles satisfy −100°≦θ≦−60°; 1.193φ−2°≦ψ≦1.193φ+2°; and either ψ≦−2φ−3° or −2φ+3°≦ψ.
摘要翻译： 声波装置（5）包括由具有欧拉角（＆phgr;; thetas;ψ）的铌酸锂材料制成的压电基片（6），设置在压电基片（6）上的电极（7） 波长λ的主声波和设置在压电基板（6）上以覆盖电极（7）的保护层（8）。 保护层（8）的厚度大于0.27λ。 欧拉角满足-100°＆nlE;＆thetas;＆nlE; -60°; 1.193＆phgr。-2°＆nlE;ψ＆nlE; 1.193＆phgr。+ 2°; ψ＆nlE; -2＆phgr; -3°或-2＆phgr; + 3°＆nlE;ψ。
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6.发明授权Surface acoustic wave resonator having comb electrodes with different overlapping lengths 有权表面声波谐振器具有不同重叠长度的梳状电极公开(公告)号：US08084915B2
公开(公告)日：2011-12-27
申请号：US12513903
申请日：2007-11-07
CPC分类号： H03H9/02559 , H03H9/1452 , H03H9/25
摘要： A surface acoustic wave resonator includes a piezoelectric substrate, a first surface acoustic wave resonator having a comb electrode provided on the piezoelectric substrate, and a second surface acoustic wave resonator having a comb electrode provided on the piezoelectric substrate. The first surface acoustic wave resonator and the second surface acoustic wave resonator are apodized and connected in parallel.
摘要翻译： 表面声波谐振器包括压电基片，具有设置在压电基片上的梳状电极的第一声表面波谐振器和设置在压电基片上的梳状电极的第二声表面波谐振器。 第一表面声波谐振器和第二声表面波谐振器被并口并联并联。
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7.发明申请ELASTIC WAVE RESONATOR, ELASTIC WAVE FILTER, AND ANTENNA SHARING DEVICE USING THE SAME 有权弹性波共振器，弹性波滤波器，以及使用其的天线共享装置公开(公告)号：US20100194496A1
公开(公告)日：2010-08-05
申请号：US12757475
申请日：2010-04-09
CPC分类号： H03H9/6483 , H03H9/0071 , H03H9/02944 , H03H9/6496
摘要： An acoustic wave resonance device includes: piezoelectric substrate (1), first acoustic wave resonator (100) provided on an upper surface of piezoelectric substrate (1) and including first interdigital transducer electrode (110), and second acoustic wave resonator (200) provided on piezoelectric substrate (1) and including second interdigital transducer electrode (210). First acoustic wave resonator (100) and second acoustic wave resonator (200) are connected to each other. An overlap width of a plurality of first comb-shaped electrodes (112) forming first acoustic wave resonator (100) is larger than an overlap width of a plurality of second comb-shaped electrodes (212) forming second acoustic wave resonator (200). With such a configuration, frequencies in which a transverse mode spurious response is generated can be distributed and loss can be reduced.
摘要翻译： 声波共振装置包括：压电基板（1），设置在压电基板（1）的上表面上并包括第一叉指式换能器电极（110）的第一声波谐振器（100）和设置在第二声波谐振器 在压电基板（1）上并且包括第二叉指式换能器电极（210）。 第一声波谐振器（100）和第二声波谐振器（200）彼此连接。 形成第一声波谐振器（100）的多个第一梳状电极（112）的重叠宽度大于形成第二声波谐振器（200）的多个第二梳状电极（212）的重叠宽度。 通过这样的配置，可以分配产生横向模式杂散响应的频率，并且可以减少损耗。
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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
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。
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9.发明授权公开(公告)号：US09425766B2
公开(公告)日：2016-08-23
申请号：US13390115
申请日：2010-10-29
CPC分类号： H03H9/02559 , H03H9/1452 , H03H9/64
摘要： An acoustic wave device includes a piezoelectric substrate made of a lithium niobate material having the Euler angles (φ, θ, ψ), an electrode disposed on the piezoelectric substrate for exciting a major acoustic wave of a wavelength λ, and a protective layer disposed on the piezoelectric substrate to cover the electrode. The protective layer has a thickness greater than 0.27λ. The Euler angles satisfy −100°≦θ≦−60°; 1.193φ−2°≦ψ≦1.193φ+2°; and either ψ≦−2φ−3° or −2φ+3°≦ψ.
摘要翻译： 声波装置包括由具有欧拉角（φ，θ，ψ）的铌酸锂材料制成的压电基板，设置在压电基板上用于激发波长λ的主要声波的电极，以及设置在 压电基片覆盖电极。 保护层的厚度大于0.27λ。 欧拉角满足-100°≤θ≤-60°; 1.193φ-2°≤ψ≤1.193φ+ 2°; ψ≤-2φ-3°或-2φ+ 3°≤ψ。
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10.发明授权Elastic wave resonator, elastic wave filter, and antenna sharing device using the same 有权弹性波谐振器，弹性波滤波器和使用其的天线共享装置公开(公告)号：US08476991B2
公开(公告)日：2013-07-02
申请号：US12757475
申请日：2010-04-09
CPC分类号： H03H9/6483 , H03H9/0071 , H03H9/02944 , H03H9/6496
摘要： An acoustic wave resonance device includes: piezoelectric substrate (1), first acoustic wave resonator (100) provided on an upper surface of piezoelectric substrate (1) and including first interdigital transducer electrode (110), and second acoustic wave resonator (200) provided on piezoelectric substrate (1) and including second interdigital transducer electrode (210). First acoustic wave resonator (100) and second acoustic wave resonator (200) are connected to each other. An overlap width of a plurality of first comb-shaped electrodes (112) forming first acoustic wave resonator (100) is larger than an overlap width of a plurality of second comb-shaped electrodes (212) forming second acoustic wave resonator (200). With such a configuration, frequencies in which a transverse mode spurious response is generated can be distributed and loss can be reduced.
摘要翻译： 声波共振装置包括：压电基板（1），设置在压电基板（1）的上表面上并包括第一叉指式换能器电极（110）的第一声波谐振器（100）和设置在第二声波谐振器 在压电基板（1）上并且包括第二叉指式换能器电极（210）。 第一声波谐振器（100）和第二声波谐振器（200）彼此连接。 形成第一声波谐振器（100）的多个第一梳状电极（112）的重叠宽度大于形成第二声波谐振器（200）的多个第二梳状电极（212）的重叠宽度。 通过这样的配置，可以分配产生横向模式杂散响应的频率，并且可以减少损耗。
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