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公开(公告)号：EP2063530B1
公开(公告)日：2013-08-21
申请号：EP07828519.4
申请日：2007-09-27
发明人： TAKAMINE, Yuichi
CPC分类号： H03H9/0061 , H03H9/0085 , H03H9/14588 , H03H9/6469 , H03H9/725
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公开(公告)号：EP1152529B1
公开(公告)日：2011-03-09
申请号：EP01400994.8
申请日：2001-04-18
IPC分类号： H03H9/64
CPC分类号： H03H9/6436 , H03H9/0042 , H03H9/0057 , H03H9/008 , H03H9/0085 , H03H9/14582 , H03H9/14588 , H03H9/6469
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3.发明公开
公开(公告)号：EP2063530A1
公开(公告)日：2009-05-27
申请号：EP07828519.4
申请日：2007-09-27
发明人： TAKAMINE, Yuichi
CPC分类号： H03H9/0061 , H03H9/0085 , H03H9/14588 , H03H9/6469 , H03H9/725
摘要： A surface acoustic wave filter device having an increased sharpness in filter characteristics and an expanded passband width is provided. A surface acoustic wave filter device (1) includes a first surface acoustic wave filter unit (10) and a second surface acoustic wave filter unit (20), of longitudinally coupled resonator type. The filter units (10 and 20) are cascade-connected to each other. A phase of a signal flowing through a first signal line (6) electrically connecting second IDTs (12 and 22) of the first and second surface acoustic wave filter units (10 and 20) is different by 180° from a phase of a signal flowing through a signal line (7) electrically connecting third IDTs (13 and 23) of the first and second surface acoustic wave filter units (10 and 20). A surface acoustic wave resonator (31) is connected between the first and second signal lines (6 and 7). A resonance point of the surface acoustic wave resonator (31) is placed in an attenuation region in the vicinity of the edge of a low frequency side of a filter passband or an anti-resonance point of the surface acoustic wave resonator (31) is placed in an attenuation region in the vicinity of the edge of a high frequency side of the filter passband.
摘要翻译： 提供了具有增加的滤波器特性的锐度和扩展的通带宽度的表面声波滤波器装置。 表面声波滤波器装置（1）包括纵向耦合谐振器型的第一表面声波滤波器单元（10）和第二声表面波滤波器单元（20）。 过滤器单元（10和20）彼此级联连接。 流过第一和第二表面声波滤波器单元（10和20）的第二IDT（12和22）的电连接的第一信号线（6）的信号的相位与信号流的相位相差180° 通过电连接第一和第二声表面波滤波器单元（10和20）的第三IDT（13和23）的信号线（7）。 表面声波谐振器（31）连接在第一和第二信号线（6和7）之间。 表面声波谐振器（31）的共振点被放置在滤波器通带的低频侧的边缘附近的衰减区域中，或者放置声表面波谐振器（31）的反共振点 在滤波器通带的高频侧的边缘附近的衰减区域。
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公开(公告)号：EP1658670B1
公开(公告)日：2008-01-23
申请号：EP04766586.4
申请日：2004-08-24
申请人： Tele Filter GmbH
发明人： MARTIN, Günter , WEIHNACHT, Manfred
IPC分类号： H03B5/32
CPC分类号： H03B5/326 , H03H9/02834 , H03H9/6433 , H03H9/6469
摘要： The invention relates to an oscillator or a sensor comprising a unit consisting of two frequency determining elements each of which comprises at least one interdigital converter (24, 34) for acoustic surface waves and a back-coupling circuit comprising an amplifier, wherein the frequency determining elements (2, 3) are distinguished by a temperature dependence of a synchronous frequency. Said invention is characterised in that a) the frequency determining elements are embodied in the form of acoustic surface wave resonators, b) the temperature coefficients of n-th order of the synchronous frequency of the two acoustic surface wave resonators have different sings if they are not equal to zero and the temperature coefficients of (n+1st) order of the synchronous frequency of the two acoustic surface wave resonators have the same sign and the temperature coefficients from the first order to (n-1st) order of the synchronous frequency of the two acoustic surface wave resonators are equal to zero if n is greater than 1, wherein n being equal to or greater than 1, c) the ratio between the converter openings and the ratio between the lengths in the direction perpendicular to the edge teeth of the converter and to strips of the object reflectors having different frequency determining elements which are assembled in one unit are selected in such a way that the oscillator frequency variation is minimum within the range of given temperatures.
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公开(公告)号：EP1175006B1
公开(公告)日：2007-03-21
申请号：EP01901488.5
申请日：2001-01-22
CPC分类号： H03H9/6469 , H03H9/0061 , H03H9/02637 , H03H9/14538 , H03H9/14552 , H03H9/14576 , H03H9/14582 , H03H9/14585
摘要： A filter comprising two cascaded primary-tertiary longitudinal coupling dual-mode SAW filters provided so as to flatten the passband of the filter and three IDT electrodes arranged with electrode finger pitches L1 so as to decrease the VSWR below 2, wherein the pitch L2 of the central IDT electrodes of one of the dual-mode SAW filters is larger than the pitch L1, electrode fingers are symmetrically removed from both sides of the IDT electrode, and the removed electrode fingers are connected to the opposed IDT electrode so as to use them as dummy electrodes with pitches L2.
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6.发明公开
公开(公告)号：EP1453201A3
公开(公告)日：2006-05-17
申请号：EP04012227.7
申请日：1996-12-06
申请人： FUJITSU LIMITED
发明人： Ueda, Masanori , Endoh, Gou , Kawachi, Osamu , Fujiwara, Yoshiro
IPC分类号： H03H9/64
CPC分类号： H03H9/6469 , H03H9/0038 , H03H9/0042 , H03H9/0061 , H03H9/1071 , H03H9/25 , H03H9/6436 , H03H9/6459 , H03H9/6466 , H03H9/6489
摘要： A surface-acoustic-wave device includes at least first and second surface-acoustic-wave elements (11, 21) formed on a common piezoelectric substrate (1) and cascaded with each other, each of the first and second surface-acoustic-wave elements including a plurality of interdigital electrodes (11A - 11C; 21A - 21C) having a plurality of electrode fingers overlapping with each other in correspondence to a path of a surface acoustic wave on the piezoelectric substrate, wherein the width (W 1 , W 2 ) of overlapping of the electrode fingers is changed between the first surface-acoustic-wave element and the second surface-acoustic-wave element.
摘要翻译： 一种双模式的表面声波器件，包括：压电基板; 第一和第二反射器（10A，10B）设置在沿着在所述压电基板的表面声波的传播路径，所述压电基片; 第一，连续从所述第一反射器与所述第二反射器设置在所述压电基片的第二和第三叉指型电极; 每个所述的第一至第三叉指型电极包括第一至第三数目分别对电极指的; 对电极指的对所述第一交叉电极的worin说firstNumber是从所述第三数量电极指对用于所述第三叉指式电极的不同。
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公开(公告)号：EP0763889B1
公开(公告)日：2005-10-26
申请号：EP96906063.1
申请日：1996-03-15
申请人： Kinseki Limited
发明人： OHMURA, Masashi Japan Energy Corporation , HONMO, Hiroshi Japan Energy Corporation , ABE, Hidenori Japan Energy Corporation
IPC分类号： H03H9/64
CPC分类号： H03H9/0028 , H03H9/6433 , H03H9/6469
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公开(公告)号：EP1475890A1
公开(公告)日：2004-11-10
申请号：EP03703286.9
申请日：2003-02-10
CPC分类号： H03H9/6436 , H03H9/0038 , H03H9/02913 , H03H9/059 , H03H9/1064 , H03H9/1071 , H03H9/25 , H03H9/6433 , H03H9/6469 , H03H2250/00
摘要： A surface acoustic wave device in the present invention comprises; a plurality of surface acoustic wave elements provided on a piezoelectric substrate to be electrically isolated with each other, a substrate provided with a first conductor electrically connecting the plurality of surface acoustic wave elements, a second conductor electrically isolated to the first conductor and an external terminal, and a sealing member for protecting the substrate and the piezoelectric substrate. For the substrate, a package having a recess or an insulating substrate is used. The first conductor is electrically isolated to the external terminal, while the second conductor is electrically connected with the external terminal. The above-described structure in accordance with the present invention provides a small-sized surface acoustic wave device with excellent attenuation characteristics.
摘要翻译： 本发明的声表面波装置包括： 多个表面声波元件设置在压电基板上以彼此电隔离，基板设置有电连接多个表面声波元件的第一导体，与第一导体电隔离的第二导体和外部端子 以及用于保护基板和压电基板的密封构件。 对于基板，使用具有凹部或绝缘基板的封装。 第一导体与外部端子电隔离，而第二导体与外部端子电连接。 根据本发明的上述结构提供了具有优异的衰减特性的小型表面声波装置。
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9.发明公开Surface acoustic wave device, communication device using the same, and antenna duplexer 有权一种表面声波器件，包含相同的通信装置和天线共用
公开(公告)号：EP1137177A3
公开(公告)日：2003-01-08
申请号：EP01300766.1
申请日：2001-01-29
发明人： Nishizawa, Toshio, c/o Fujitsu Media , Ueda, Masanori, c/o Fujitsu Media , Kawauchi, Osamu, c/o Fujitsu Media , Misawa, Kiyohide, c/o Fujitsu Media , Furusato, Hiroyuki, c/o Fujitsu Media
CPC分类号： H03H9/6436 , H03H9/0061 , H03H9/0576 , H03H9/08 , H03H9/1071 , H03H9/6469 , H03H9/72 , H03H9/725 , H03H2250/00
摘要： A surface acoustic wave device includes a package (2) having a coefficient of linear expansion; and a piezoelectric element (1) forming a surface acoustic wave element, and mounted on the package (2) by flip chip bonding. The piezoelectric element (1) has different coefficients of linear expansion in a direction of propagation of surface acoustic waves generated by an interdigital electrode of the surface acoustic wave-element and in a direction perpendicular thereto, and further has a long side (L z ) existing in a direction having a coefficient of linear expansion close to the coefficient of linear expansion of the package (2). The piezoelectric element (1) is cut out from a single crystal having X, Y, and Z crystal axes, and the X crystal axis agrees with a direction of propagation of the surface acoustic wave.
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10.发明公开Surface-acoustic-wave device for flip-chip mounting 审中-公开AkustischeOberflächenwellenvorrichtungfürFlip-Chip-Montage
公开(公告)号：EP1076414A2
公开(公告)日：2001-02-14
申请号：EP00402286.9
申请日：2000-08-11
发明人： Misawa, Kiyohide, Fujitsu Media Devices Ltd. , Kawachi, Osamu, Fujitsu Media Devices Ltd. , Furusato, Hiroyuki, Fujitsu Media Devices Ltd. , Ueda, Masanori, Fujitsu Media Devices Ltd.
CPC分类号： H03H9/6469 , H01L2224/16225 , H03H9/059 , H03H9/1071 , H03H9/6483 , H03H9/725
摘要： A SAW device includes a piezoelectric substrate and a package body holding the piezoelectric substrate, wherein the package body includes a bottom part carrying the piezoelectric substrate in a face-down state and a side wall part laterally surrounding the piezoelectric substrate, the bottom part carrying a wiring pattern for electrical connection with an electrode pattern on the piezoelectric substrate, the wiring pattern including a first ground pattern and a second ground pattern in a mutually separated relationship, the first ground pattern and the second ground pattern being connected electrically with each other.
摘要翻译： SAW器件包括压电基板和保持压电基板的封装体，其中封装体包括以面朝下状态承载压电基板的底部和横向围绕压电基板的侧壁部分，底部部分承载 用于与压电基板上的电极图案电连接的布线图案，布线图案包括彼此分离关系的第一接地图案和第二接地图案，第一接地图案和第二接地图案彼此电连接。
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