Antenna duplexer and electronic device
    72.
    发明授权
    Antenna duplexer and electronic device 有权
    天线双工器和电子设备

    公开(公告)号:US07276992B2

    公开(公告)日:2007-10-02

    申请号:US11114090

    申请日:2005-04-26

    IPC分类号: H03H9/72

    CPC分类号: H03H9/725 H03H9/0576 H03H9/72

    摘要: An antenna duplexer includes two surface acoustic wave filters having different center frequencies and a phase matching circuit that matches phases of the two surface acoustic wave filters. A matching line pattern is provided on at least two layers between the two surface acoustic wave filters and transmission and reception terminals, and within an area specified by a sheet-like ground in a multilayered package, the multilayered package comprising multiple layers including a bonding layer on which wire bonding pads are provided for connecting to the two surface acoustic wave filters, and the matching line pattern having no portion provided on bonding layer.

    摘要翻译: 天线双工器包括具有不同中心频率的两个表面声波滤波器和匹配两个声表面波滤波器的相位的相位匹配电路。 在两个表面声波滤波器和发送和接收终端之间的至少两层上提供匹配线图案,并且在由多层包装中的片状接地指定的区域内,所述多层封装包括多层,包括结合层 在其上设置用于连接到两个声表面波滤波器的引线接合焊盘,以及没有设置在接合层上的部分的匹配线图案。

    Surface acoustic wave element, and surface acoustic wave device including the same
    73.
    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
    75.
    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
    78.
    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。