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    Surface acoustic wave filter
    3.
    再颁专利
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号：USRE40036E1

    公开(公告)日：2008-01-29

    申请号：US09925942

    申请日：2001-08-10

    申请人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    发明人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    IPC分类号： H03H9/00 ,  H03H9/64 ,  H03H9/72

    CPC分类号： H03H9/6483 ,  H03H2250/00

    摘要： A SAW filter includes a first SAW resonator having a pair of terminals and a predetermined resonance frequency (frp), the first SAW resonator being provided in a parallel arm of the SAW filter. A second SAW resonator has a pair of terminals and a predetermined resonance frequency (frs) approximately equal to a predetermined antiresonance frequency of the first SAW resonator (fap). The second SAW resonator is provided in a series arm of the SAW filter. An inductance element is connected in series to the first SAW resonator.

    摘要翻译： SAW滤波器包括具有一对端子和预定谐振频率的第一SAW谐振器，第一SAW谐振器设置在SAW滤波器的并联臂中。 第二SAW谐振器具有大约等于第一SAW谐振器的预定反共振频率的一对端子和预定的谐振频率（f

    Surface acoustic wave reflector
    4.
    发明授权
    Surface acoustic wave reflector 失效
    表面声波反射器

    公开(公告)号：US06359368B1

    公开(公告)日：2002-03-19

    申请号：US09628276

    申请日：2000-07-28

    申请人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

    发明人： Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata ,  Yoshio Satoh

    IPC分类号： H01L4108

    CPC分类号： H03H9/02771

    摘要： A surface acoustic wave reflector includes a piezoelectric substrate and a plurality of perturbation members arranged at a first period on the piezoelectric substrate. A plurality of free-surface regions where no perturbation members exist are formed in an arrangement of the perturbation members.

    摘要翻译： 表面声波反射器包括压电基片和在压电基片上以第一周期布置的多个扰动元件。 在扰动构件的布置中形成多个不存在扰动构件的自由表面区域。

    Saw resonator with improved connections
    5.
    发明授权
    Saw resonator with improved connections 失效
    具有改进连接的锯片谐振器

    公开(公告)号：US5955933A

    公开(公告)日：1999-09-21

    申请号：US640948

    申请日：1996-05-15

    申请人： Tokihiro Nishihara ,  Yoshio Satoh ,  Hidema Uchishiba ,  Takashi Matsuda ,  Osamu Ikata

    发明人： Tokihiro Nishihara ,  Yoshio Satoh ,  Hidema Uchishiba ,  Takashi Matsuda ,  Osamu Ikata

    IPC分类号： H03H9/02 ,  H03H9/145 ,  H03H9/64 ,  H03H9/25 ,  H03H9/52

    CPC分类号： H03H9/6483 ,  H03H9/02944 ,  H03H9/145 ,  H03H9/64 ,  H03H9/02984

    摘要： In a surface acoustic wave filter constituted with a ladder of resonators having a resonance frequency or an anti-resonance frequency, an input current flowing into a resonator in a parallel arm at the first stage from the input is so large as to deteriorate its lifetime caused from a heat generation by the resistance of the thin film wiring. As a measure to this problem, bonding wires (30, 31) connected onto points on connection electrodes (130, 131) for connecting an end of each of plural comb teeth electrodes 111 forming the resonators R.sub.s1 & R.sub.p1, or on a lead conductor (130-1) extended longitudinally from the connection electrode, are allotted at both sides of a center line (C1) of the plural comb teeth electrode group. Furthermore, a bonding wire may be connected substantially onto the center line C1 as well. It is preferable for the bonding wires to be located substantially symmetric with respect to the center line C1. It is preferable that the width along the longitudinal direction of the comb teeth electrodes is larger than a width of the comb teeth electrode.

    摘要翻译： PCT No.PCT / JP95 / 02293 Sec。 371日期：1996年5月15日 102（e）日期1996年5月15日PCT提交1995年11月10日PCT公布。 公开号WO96 / 15587 日期：1996年5月23日在由具有共振频率或反共振频率的谐振器的梯形构成的表面声波滤波器中，从输入端流入到并联臂的第一级的并联臂的谐振器的输入电流大到 由于薄膜布线的电阻而产生的热量使其寿命恶化。 作为这个问题的一个措施，连接在连接电极（130,131）上的点上的接合线（30,31）用于连接形成谐振器Rs1和Rp1的多个梳齿电极111的端部，或引线导体 130-1）从连接电极纵向延伸，分配在多个梳齿电极组的中心线（C1）的两侧。 此外，接合线也可以基本上连接在中心线C1上。 接合线优选相对于中心线C1大致对称。 梳齿电极的沿长度方向的宽度优选大于梳齿电极的宽度。

    Duplexer package
    6.
    发明授权
    Duplexer package 失效
    双工包装

    公开(公告)号：US5859473A

    公开(公告)日：1999-01-12

    申请号：US812282

    申请日：1997-03-06

    申请人： Osamu Ikata ,  Yoshio Satoh

    发明人： Osamu Ikata ,  Yoshio Satoh

    IPC分类号： H05K3/46 ,  H01L25/04 ,  H01L25/18 ,  H03H9/05 ,  H03H9/25 ,  H03H9/72 ,  H01L23/34

    CPC分类号： H03H9/725 ,  H03H9/0576 ,  H03H9/72 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2924/16195 ,  H01L2924/30107 ,  H01L2924/3011

    摘要： A duplexer package comprises two surface acoustic wave filter chips having different band center frequencies and a phase matching circuit for matching the phases of the two SAW filter chips, the filter chips and the phase matching circuit being accommodated in one unit, wherein the phase matching circuit is formed in a layer providing a cavity for the filter chips, the layer defining the cavity being located above a face for mounting the surface acoustic wave filter chips. According to the present invention, the height of the duplexer package can be lowered.

    摘要翻译： 双工器封装包括具有不同带中心频率的两个表面声波滤波器芯片和用于将两个SAW滤波器芯片的相位相匹配的相位匹配电路，滤波器芯片和相位匹配电路容纳在一个单元中，其中相位匹配电路 形成在提供用于过滤芯片的空腔的层中，限定空腔的层位于用于安装声表面波滤波器芯片的面之上。 根据本发明，可以降低双工器封装的高度。

    Surface-acoustic-waver filter having a plurality of electrodes
    8.
    发明授权
    Surface-acoustic-waver filter having a plurality of electrodes 失效
    具有多个电极的表面 - 声波滤波器

    公开(公告)号：US5179310A

    公开(公告)日：1993-01-12

    申请号：US672018

    申请日：1991-03-19

    申请人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Mitsuo Takamatsu ,  Takashi Matsuda

    发明人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Mitsuo Takamatsu ,  Takashi Matsuda

    IPC分类号： H03H9/145 ,  H03H9/64

    CPC分类号： H03H9/1455 ,  H03H9/6426

    摘要： A SAW device comprises a substrate, input and output interdigital electrodes provided on the substrate alternately to form a row of electrodes, and a pair of open strip reflectors disposed at both ends of the row, the input interdigital electrodes having a first pair number representing the number of pairs of opposing finger electrodes forming the input electrode, the output interdigital electrodes having a second pair number representing the number of pairs of opposing finger electrodes forming the output electrode, wherein the first pair number and second pair number are set different in the adjacent input and output electrodes with a predetermined ratio therebetween, the first pair number is changed in each input electrodes in the row, and the second pair number is changed in each output electrodes in the row.

    Surface acoustic wave filter
    9.
    再颁专利
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号：USRE37375E1

    公开(公告)日：2001-09-18

    申请号：US09158074

    申请日：1998-09-22

    申请人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    发明人： Yoshio Satoh ,  Osamu Ikata ,  Tsutomu Miyashita ,  Takashi Matsuda ,  Mitsuo Takamatsu

    IPC分类号： H03H964

    CPC分类号： H03H9/6436 ,  H03H9/0576 ,  H03H9/1071 ,  H03H9/6433 ,  H03H9/6483 ,  H03H9/72 ,  H03H9/725 ,  H03H2250/00

    摘要： A SAW filter includes a first SAW resonator having a pair of terminals and a predetermined resonance frequency (frp), the first SAW resonator being provided in a parallel arm of the SAW filter. A second SAW resonator has a pair of terminals and a predetermined resonance frequency (frs) approximately equal to a predetermined antiresonance frequency of the first SAW resonator (fap). The second SAW resonator is provided in a series arm of the SAW filter. An inductance element is connected in series to the first SAW resonator.

    摘要翻译： SAW滤波器包括具有一对端子和预定谐振频率（frp）的第一SAW谐振器，第一SAW谐振器设置在SAW滤波器的并联臂中。 第二SAW谐振器具有大约等于第一SAW谐振器（fap）的预定反谐振频率的一对端子和预定谐振频率（frs）。 第二SAW谐振器设置在SAW滤波器的串联臂中。 电感元件与第一SAW谐振器串联连接。

    Multimode surface acoustic wave filter with a coupling section not being a uniform metal film
    10.
    发明授权
    Multimode surface acoustic wave filter with a coupling section not being a uniform metal film 失效
    具有耦合部分的多模表面声波滤波器不是均匀的金属膜

    公开(公告)号：US06121860A

    公开(公告)日：2000-09-19

    申请号：US831332

    申请日：1997-03-31

    申请人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

    发明人： Jun Tsutsumi ,  Osamu Ikata ,  Yoshio Satoh

    IPC分类号： H03H9/145 ,  H03H9/00 ,  H03H9/64

    CPC分类号： H03H9/6479 ,  H03H9/0028 ,  H03H9/643 ,  H03H9/6463

    摘要： The multimode surface acoustic wave filter includes two surface acoustic wave resonators closely arranged on a piezoelectric substrate in a direction perpendicular to the propagation direction of surface acoustic waves and acoustically coupled by a coupling section, each of the surface acoustic wave resonators including an interdigital transducer and two reflectors disposed closely on both sides of the interdigital transducer in a direction parallel to the propagation direction of the surface acoustic waves, the interdigital transducer having an excitation section for exciting the surface acoustic waves and a signal terminal section for inputting an electric signal, each of the reflectors having a grating section and a terminal section, wherein the velocity of surface acoustic waves propagating through the coupling section is a little larger than the velocity of the surface acoustic waves propagating through the excitation section of the interdigital transducer.

    摘要翻译： 多模声表面波滤波器包括两个表面声波谐振器，其紧密地布置在压电基片上，在与声表面波的传播方向垂直的方向上，并由耦合部分声学耦合，每个声表面波谐振器包括一指叉式换能器和 两个反射器在平行于表面声波的传播方向的方向上紧密地布置在叉指式换能器的两侧上，叉指换能器具有用于激励表面声波的激励部分和用于输入电信号的信号端子部分 具有光栅部分和端子部分的反射器，其中通过耦合部分传播的表面声波的速度比通过叉指换能器的激励部分传播的表面声波的速度稍大。