Surface acoustic wave element, and surface acoustic wave device including the same
    52.
    发明授权
    Surface acoustic wave element, and surface acoustic wave device including the same 有权
    表面声波元件和包括其的表面声波器件

    公开(公告)号:US07218038B2

    公开(公告)日:2007-05-15

    申请号:US10852104

    申请日:2004-05-25

    IPC分类号: H01L41/047

    摘要: A surface acoustic wave element includes: metal patterns that include interdigital transducers, each of the metal patterns being formed with a first alloy or multi-layer film of metals having different standard electrode potentials; and metal films each formed with a second alloy or multi-layer film containing metals having different standard electrode potentials from the standard electrode potentials of the metals forming the first alloy or multi-layer film, the metal films being formed at least on a part of the regions other than the regions corresponding to the electrode fingers of the interdigital transducers of all the metal patterns that are electrically independent of one another.

    摘要翻译: 表面声波元件包括:包括叉指式换能器的金属图案,每个金属图案由具有不同标准电极电位的金属的第一合金或多层膜形成; 以及金属膜,其各自由形成第一合金或多层膜的金属的标准电极电位的第二合金或多层膜形成,所述第二合金或多层膜含有不同标准电极电位的金属,所述金属膜至少形成在 除了对应于彼此电独立的所有金属图案的叉指式换能器的电极指的区域以外的区域。

    Multi-mode surface acoustic wave filter device and duplexer
    53.
    发明授权
    Multi-mode surface acoustic wave filter device and duplexer 有权
    多模式声表面波滤波器和双工器

    公开(公告)号:US07078989B2

    公开(公告)日:2006-07-18

    申请号:US10682917

    申请日:2003-10-14

    IPC分类号: H03H9/64 H03H9/72

    摘要: A multi-mode surface acoustic wave filter device includes: a piezoelectric substrate; at least one input IDT (interdigital transducer) and at least one output IDT that are formed on the piezoelectric substrate; reflectors that are formed on the piezoelectric substrate and arranged on the external sides of the input IDT and the output IDT; an input terminal that supplies input signals to the input IDT; and an output terminal that receives output signals from the output IDT. In this multi-mode surface acoustic wave filter, the input terminal and the output terminal extend in the same direction.

    摘要翻译: 一种多模式声表面波滤波器装置,包括:压电基片; 形成在所述压电基板上的至少一个输入IDT(叉指式换能器)和至少一个输出IDT; 形成在压电基板上并布置在输入IDT和输出IDT的外侧上的反射器; 输入端,其向输入IDT提供输入信号; 以及从输出IDT接收输出信号的输出端子。 在该多模式声表面波滤波器中,输入端子和输出端子沿相同方向延伸。

    Surface acoustic wave filter and surface acoustic wave duplexer having the same
    54.
    发明授权
    Surface acoustic wave filter and surface acoustic wave duplexer having the same 有权
    表面声波滤波器和表面声波双工器具有相同的性能

    公开(公告)号:US06975185B2

    公开(公告)日:2005-12-13

    申请号:US10671783

    申请日:2003-09-29

    IPC分类号: H03H9/145 H03H9/64 H03H9/72

    CPC分类号: H03H9/725 H03H9/6483

    摘要: A surface acoustic wave filter includes a series-arm resonators and parallel-arm resonators that are connected in a ladder-like structure, each having an interdigital transducer formed on a piezoelectric substrate, and at least one of the series-arm resonators having a different static capacitance from the other series-arm resonators. In this surface acoustic wave filter, at least one of the series-arm resonators except the series-arm resonator located at the first stage in the ladder-like structure has a lower average resonant frequency than the other series-arm resonators.

    摘要翻译: 表面声波滤波器包括串联臂谐振器和并联臂谐振器,其以阶梯状结构连接,每个具有形成在压电基板上的叉指式换能器,并且串联臂谐振器中的至少一个具有不同的 来自其他串联臂谐振器的静态电容。 在该声表面波滤波器中,位于阶梯状结构中的第一级的串联臂谐振器以外的串联臂谐振器中的至少一个具有比其他串联臂谐振器更低的平均谐振频率。

    Electronic circuit and electronic module
    56.
    发明授权
    Electronic circuit and electronic module 有权
    电子电路和电子模块

    公开(公告)号:US09071225B2

    公开(公告)日:2015-06-30

    申请号:US13485688

    申请日:2012-05-31

    摘要: An electronic circuit includes a plurality of duplexers that are coupled to an antenna terminal and have a pass band different from each other and a plurality of acoustic wave filters that are respectively coupled between the antenna terminal and the plurality of the duplexers, wherein filter characteristics of a first acoustic wave filter of the plurality of the acoustic wave filters are set so as to allow passage of a signal in both a pass band for transmitting and a pass band for receiving of a first duplexer of the plurality of the duplexers that is coupled to the first acoustic wave filter and suppress passage of a signal in both a pass band for transmitting and a pass band for receiving of a second duplexer of the plurality of the duplexers that is different from the first duplexer.

    摘要翻译: 电子电路包括耦合到天线端子并具有彼此不同的通带的多个双工器,以及分别耦合在天线端子和多个双工器之间的多个声波滤波器,其中滤波器特性 多个声波滤波器的第一声波滤波器被设定为允许通过用于发送的通带中的信号和用于接收耦合到多个双工器的多个双工器的第一双工器的通带 第一声​​波滤波器,并且抑制用于发送的通带中的信号的通过和用于接收与第一双工器不同的多个双工器的第二双工器的通带。

    Duplexer, communication module, and communication device
    57.
    发明授权
    Duplexer, communication module, and communication device 有权
    双工器,通信模块和通信设备

    公开(公告)号:US08378760B2

    公开(公告)日:2013-02-19

    申请号:US13563510

    申请日:2012-07-31

    IPC分类号: H03H7/46 H03H9/70

    摘要: A duplexer includes an unbalanced transmitting filter; a balanced receiving filter; a transmitting port connected to the transmitting filter; and a first receiving port and a second receiving port connected to the receiving filter. The duplexer also includes an electromagnetic coupling portion connected between the transmitting port and the first receiving port and between the transmitting port and the second receiving port. The electromagnetic coupling portion adjusts the phase between electric power that flows from the transmitting port to the first receiving port and electric power that flows from the transmitting port to the second receiving port.

    摘要翻译: 双工器包括不平衡发射滤波器; 平衡接收滤波器; 连接到发送滤波器的发送端口; 以及连接到接收滤波器的第一接收端口和第二接收端口。 双工器还包括连接在发送端口和第一接收端口之间以及发送端口和第二接收端口之间的电磁耦合部分。 电磁耦合部分调节从发送端口到第一接收端口的电力之间的相位以及从发送端口流向第二接收端口的电力。

    Piezoelectric thin film resonator, filter using the resonator, duplexer using the filter, and communication equipment using the filter or the duplexer
    58.
    发明授权
    Piezoelectric thin film resonator, filter using the resonator, duplexer using the filter, and communication equipment using the filter or the duplexer 有权
    压电薄膜谐振器,使用谐振器的滤波器,使用滤波器的双工器,以及使用滤波器或双工器的通信设备

    公开(公告)号:US08305159B2

    公开(公告)日:2012-11-06

    申请号:US12707301

    申请日:2010-02-17

    IPC分类号: H03H9/15 H03H9/54 H03H9/70

    摘要: There is provided a piezoelectric thin film resonator that decreases only transverse mode waves selectively while maintaining resonance characteristics due to original thickness longitudinal vibration. The piezoelectric thin film resonator includes: a piezoelectric film (14); a first electrode (15a) formed on a first principal surface of the piezoelectric film (14); and a second electrode (13) formed on a second principal surface of the piezoelectric film (14) opposite to the first principal surface. The resonator has a resonance region (20) where the first electrode (15a) and the second electrode (13) are opposed to each other. An electrically discontinuous portion (18a) that is insulated from the first electrode (15a) is provided on the first principal surface of the piezoelectric film (14) in the resonance region (20), and the electrically discontinuous portion (18a) is surrounded by the first electrode (15a) on the first principal surface.

    摘要翻译: 提供了一种压电薄膜谐振器,其仅选择性地减小横模波,同时保持由于原始厚度纵向振动引起的共振特性。 压电薄膜谐振器包括:压电薄膜(14); 形成在压电膜(14)的第一主表面上的第一电极(15a); 以及形成在与第一主表面相对的压电膜(14)的第二主表面上的第二电极(13)。 谐振器具有第一电极(15a)和第二电极(13)彼此相对的共振区域(20)。 在谐振区域(20)中的压电膜(14)的第一主表面上设置与第一电极(15a)绝缘的不连续部分(18a),并且电不连续部分(18a)被 第一主表面上的第一电极(15a)。

    DUPLEXER
    59.
    发明申请
    DUPLEXER 有权
    双机

    公开(公告)号:US20120126913A1

    公开(公告)日:2012-05-24

    申请号:US13364075

    申请日:2012-02-01

    IPC分类号: H03H9/70 H03H9/72

    摘要: A duplexer with a reduced filter loss is provided. The duplexer includes two or more filters F1 and F2 that are connected to a common terminal and that have different passbands. At least one of the filters F1 and F2 includes a plurality of series resonators S1 to Sn connected in series to a path between an input terminal and an output terminal of the filter, and parallel resonators P1 to Pm connected in parallel to the above-mentioned path. An inductance L1 is connected in parallel to at least one of the series resonators, and the series resonator S1 having the inductance L1 connected in parallel thereto is divided into a plurality of resonators S11 to S13 connected in series.

    摘要翻译: 提供了一种降低滤波器损耗的双工器。 双工器包括连接到公共端并且具有不同通带的两个或更多个滤波器F1和F2。 滤波器F1和F2中的至少一个包括与滤波器的输入端子和输出端子之间的路径串联连接的多个串联谐振器S1至Sn,以及与上述并联连接的并联谐振器P1至Pm 路径。 电感L1与串联谐振器中的至少一个并联连接,具有并联连接的电感L1的串联谐振器S1被分成串联连接的多个谐振器S11〜S13。

    Duplexer, communication module, and communication device
    60.
    发明授权
    Duplexer, communication module, and communication device 有权
    双工器,通信模块和通信设备

    公开(公告)号:US08063718B2

    公开(公告)日:2011-11-22

    申请号:US12686303

    申请日:2010-01-12

    IPC分类号: H03H9/70 H03H9/72

    摘要: A duplexer of the present invention includes a reception filter (3) for passing signals in a predetermined frequency band and attenuates signals in the other frequency bands among reception signals input to an antenna port, and a transmission filter (4) for passing signals in a predetermined frequency band and attenuates signals in the other frequency bands among transmission signals input from the outside and outputting them to the antenna port. The duplexer further includes a conversion circuit (22) provided with a single-ended input terminal connected to the antenna port and balanced output terminals. The reception filter (3) is provided with a balanced input terminal connected to the output terminal of the conversion circuit (22) and a balanced output terminal for outputting the filtered reception signal. Thus, a balance-output-type duplexer that is connectable to a balance-input-type LNA and is free from loss and degradation in power-handling capability, a communication module and a communication device can be realized.

    摘要翻译: 本发明的双工器包括用于使预定频带中的信号通过的接收滤波器(3),并且对输入到天线端口的接收信号中的其它频带中的信号进行衰减;以及发送滤波器(4),用于在 预定频带,并衰减从外部输入的发送信号中的其他频带中的信号,并将其输出到天线端口。 双工器还包括具有连接到天线端口和平衡输出端子的单端输入端的转换电路(22)。 接收滤波器(3)设置有连接到转换电路(22)的输出端子的平衡输入端子和用于输出滤波后的接收信号的平衡输出端子。 因此,可以实现能够平衡输入型LNA连接并且没有功率处理能力的损耗和劣化的平衡输出型双工器,通信模块和通信设备。