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    Surface acoustic wave device, surface acoustic wave apparatus, and communications equipment
    2.
    发明申请
    Surface acoustic wave device, surface acoustic wave apparatus, and communications equipment 有权
    表面声波装置，表面声波装置和通信设备

    公开(公告)号：US20060022768A1

    公开(公告)日：2006-02-02

    申请号：US11190515

    申请日：2005-07-27

    申请人： Yuuko Yokota ,  Yoshifumi Yamagata ,  Kiyohiro Iioka

    发明人： Yuuko Yokota ,  Yoshifumi Yamagata ,  Kiyohiro Iioka

    IPC分类号： H03H9/72 ,  H03H9/64

    CPC分类号： H03H9/1085 ,  H01L2224/16225 ,  H03H9/02574 ,  H03H9/02614 ,  H03H9/02952 ,  H03H9/02984 ,  H03H9/0576 ,  H03H9/059 ,  H03H9/1092 ,  H03H9/72 ,  H03H9/725

    摘要： A second substrate 21 composed of a material having a lower dielectric constant than that of a piezoelectric substrate 2 having a transmission-side filter region 12 and a receiving-side filter region 13 formed therein is joined to the other main surface of the piezoelectric substrate 2, and a conductor layer 22 is formed throughout the other main surface of the second substrate 21. The effective dielectric constant of the substrate is reduced, thereby making it possible to reduce a parasitic capacitance formed between an input electrode section 5 in the transmission-side filter region 12 and an output electrode section 6 in the receiving-side filter region 13 and to improve isolation characteristics.

    摘要翻译： 由具有比具有形成在其中的透射侧滤光区12和接收侧滤光区13的压电基片2的介电常数低的材料构成的第二基片21与压电基片2的另一个主表面 并且在第二基板21的整个另一个主表面上形成导体层22。 降低了衬底的有效介电常数，从而可以减小发送侧滤波器区域12中的输入电极部分5和接收侧滤波器区域13中的输出电极部分6之间形成的寄生电容，并且 提高隔离特性。

    Surface acoustic wave device, surface acoustic wave apparatus, and communications equipment
    3.
    发明授权
    Surface acoustic wave device, surface acoustic wave apparatus, and communications equipment 有权
    表面声波装置，表面声波装置和通信设备

    公开(公告)号：US07609129B2

    公开(公告)日：2009-10-27

    申请号：US11190515

    申请日：2005-07-27

    申请人： Yuuko Yokota ,  Yoshifumi Yamagata ,  Kiyohiro Iioka

    发明人： Yuuko Yokota ,  Yoshifumi Yamagata ,  Kiyohiro Iioka

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

    CPC分类号： H03H9/1085 ,  H01L2224/16225 ,  H03H9/02574 ,  H03H9/02614 ,  H03H9/02952 ,  H03H9/02984 ,  H03H9/0576 ,  H03H9/059 ,  H03H9/1092 ,  H03H9/72 ,  H03H9/725

    摘要： A second substrate 21 composed of a material having a lower dielectric constant than that of a piezoelectric substrate 2 having a transmission-side filter region 12 and a receiving-side filter region 13 formed therein is joined to the other main surface of the piezoelectric substrate 2, and a conductor layer 22 is formed throughout the other main surface of the second substrate 21. The effective dielectric constant of the substrate is reduced, thereby making it possible to reduce a parasitic capacitance formed between an input electrode section 5 in the transmission-side filter region 12 and an output electrode section 6 in the receiving-side filter region 13 and to improve isolation characteristics.

    摘要翻译： 由具有比具有形成在其中的透射侧滤光区12和接收侧滤光区13的压电基片2的介电常数低的材料构成的第二基片21与压电基片2的另一个主表面 并且在第二基板21的另一个主表面上形成导体层22.基板的有效介电常数降低，从而可以减小在发送侧的输入电极部5之间形成的寄生电容 滤波器区域12和输出电极部分6，并提高隔离特性。

    Surface acoustic wave resonator, surface acoustic wave filter and surface acoustic wave duplexer, and communications equipment
    5.
    发明申请
    Surface acoustic wave resonator, surface acoustic wave filter and surface acoustic wave duplexer, and communications equipment 失效
    表面声波谐振器，表面声波滤波器和表面声波双工器，以及通讯设备

    公开(公告)号：US20060214748A1

    公开(公告)日：2006-09-28

    申请号：US11392484

    申请日：2006-03-28

    申请人： Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

    发明人： Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

    IPC分类号： H03H9/64

    CPC分类号： H03H9/725 ,  H03H9/02771 ,  H03H9/0576 ,  H03H9/643

    摘要： Disclosed is a surface acoustic wave resonator which comprises, on a piezoelectric substrate 19, an IDT electrode 1 including bus bar electrodes 12a, reflector electrodes 2 disposed to be adjacent to both sides of the IDT electrode 1 in a main propagation direction F of surface acoustic waves at the IDT electrode 1, and auxiliary reflector electrodes 3 that are disposed at four positions external to the reflector electrodes 2 on virtual straight lines extending from the bus bar electrodes 12a of the IDT electrode 1 in an inclined manner so that the periodic direction G of periodically arranged electrodes 14b is oriented toward the IDT electrode 1.

    摘要翻译： 公开了一种表面声波谐振器，其在压电基板19上包括IDT电极1，其包括汇流条电极12a，反射器电极2，该反射器电极2设置成与IDT电极1的主表面的主传播方向F相邻 IDT电极1的声波和辅助反射器电极3设置在反射器电极2的外部的四个位置处，以从IDT电极1的汇流条电极12a倾斜的方式延伸的虚拟直线上，使得周期性 周向布置的电极14b的方向G朝向IDT电极1。

    Surface acoustic wave resonator, surface acoustic wave filter and surface acoustic wave duplexer, and communications equipment
    9.
    发明授权
    Surface acoustic wave resonator, surface acoustic wave filter and surface acoustic wave duplexer, and communications equipment 失效
    表面声波谐振器，表面声波滤波器和表面声波双工器，以及通讯设备

    公开(公告)号：US07453335B2

    公开(公告)日：2008-11-18

    申请号：US11392484

    申请日：2006-03-28

    申请人： Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

    发明人： Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

    IPC分类号： H03H9/25 ,  H03H9/64 ,  H03H9/72

    CPC分类号： H03H9/725 ,  H03H9/02771 ,  H03H9/0576 ,  H03H9/643

    摘要： Disclosed is a surface acoustic wave resonator which comprises, on a piezoelectric substrate 19, an IDT electrode 1 including bus bar electrodes 12a, reflector electrodes 2 disposed to be adjacent to both sides of the IDT electrode 1 in a main propagation direction F of surface acoustic waves at the IDT electrode 1, and auxiliary reflector electrodes 3 that are disposed at four positions external to the reflector electrodes 2 on virtual straight lines extending from the bus bar electrodes 12a of the IDT electrode 1 in an inclined manner so that the periodic direction G of periodically arranged electrodes 14b is oriented toward the IDT electrode 1.

    摘要翻译： 公开了一种表面声波谐振器，其在压电基板19上包括IDT电极1，其包括汇流条电极12a，反射器电极2，该反射器电极2设置成与IDT电极1的两侧在主表面的主传播方向F相邻 IDT电极1的声波和辅助反射器电极3设置在反射器电极2的外部的四个位置处，以从IDT电极1的汇流条电极12a倾斜的方式延伸的虚拟直线上，使得周期性 周向布置的电极14b的方向G朝向IDT电极1。