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51. 发明公开

EP1804377A2 SAW filter and portable terminal 审中-公开
标题翻译： SAW滤波器和tragbaresEndgerät
公开(公告)号：EP1804377A2
公开(公告)日：2007-07-04
申请号：EP06127134.2
申请日：2006-12-22
申请人： NIHON DEMPA KOGYO CO., LTD.
发明人： Onzuka, Tatsunori Nihon Dempa Kogyo Co., Ltd.
IPC分类号： H03H9/64
CPC分类号： H03H9/6483 , H03H9/14597
摘要： In order to provide a SAW filter having a wide passband matching to the digital TV broadcast waves so as to be low-loss, and obtaining a sharp and large attenuation in the outside of the TV broadcast waves, a constant-K filter is composed of series arm SAW resonators (11,15) and parallel arm SAW resonators (12,16), and a circuit component is formed by connecting an inductor (14,21,22) for shifting a resonant point/antiresonant point to the series arm SAW resonator in series or to the parallel arm SAW resonator in parallel. A plurality of the circuit components are connected in a cascade connection to each other in a plurality of stages via inductors (19) for shifting the resonant point/antiresonant point.
摘要翻译：为了提供具有与数字TV广播波相匹配的宽通带的SAW滤波器，以便成为低损耗，并且在TV广播波的外部获得明显且大的衰减，常数K滤波器由串联臂SAW谐振器（11,15）和并联臂SAW谐振器（12,16），并且电路部件通过连接用于将谐振点/反谐振点移动到串联臂SAW的电感器（14,21,22）而形成谐振器串联或并联臂SAW谐振器并联。多个电路部件通过用于移动谐振点/反谐振点的电感器（19）以多级级联地彼此连接。

52. 发明公开

EP1150425A4 SAW DEVICE 有权
标题翻译： OBREFLÄCHENWELLENANORDNUNG
公开(公告)号：EP1150425A4
公开(公告)日：2004-10-20
申请号：EP00964660
申请日：2000-10-04
申请人： TOSHIBA KK
发明人： ICHIKAWA SATOSHI , MITOBE SEIICHI
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/6433 , H03H9/14505 , H03H9/14514 , H03H9/1455 , H03H9/14552 , H03H9/14597
摘要： A SAW device comprises a piezoelectric substrate, on which are formed parallel transducers, each including a RSPUDT in which SPUDTs having unidirectional electrode structure for directional propagation are opposed to each other for opposite directions of propagation.
摘要翻译： SAW器件包括压电基片，在其上形成平行换能器，每个换能器包括RSPUDT，其中具有用于定向传播的单向电极结构的SPUDT在相反的传播方向上彼此相对。

53. 发明公开

EP1372263A2 High-frequency device and communication apparatus 审中-公开
标题翻译： Hochfrequenzbauelement und Kommunikationsvorrichtung
公开(公告)号：EP1372263A2
公开(公告)日：2003-12-17
申请号：EP03008098.0
申请日：2003-04-15
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Uriu, Kazuhide , Nakamura, Hiroyuki , Ishizaki, Toshio
IPC分类号： H03H9/64
CPC分类号： H03H9/0038 , H03H9/0042 , H03H9/0557 , H03H9/14597 , H03H9/6436 , H03H2001/0085
摘要： Interdigital transducers (IDT electrodes), reflectors, etc., are formed on a piezoelectric substrate. An unbalanced terminal (109) is connected to an input/output terminal (113). A first inductor (112) is connected between a first terminal (110), which is one of the balanced input/output terminals, and a second terminal (111), which is the other of the balanced input/output terminals. Further, a second inductor (116) is connected between the first terminal (110) in the balanced input/output terminals and a further input/output terminal (114), and the second terminal (111) in the balanced input/output terminals is connected to a third input/output terminal (115).
摘要翻译：在压电基板上形成交叉指示器（IDT电极），反射器等。不平衡端子（109）连接到输入/输出端子（113）。第一电感器（112）连接在作为平衡输入/输出端子之一的第一端子（110）和作为平衡输入/输出端子中的另一个的第二端子（111）之间。此外，第二电感器116连接在平衡输入/输出端子中的第一端子110和另外的输入/输出端子114之间，平衡输入/输出端子中的第二端子111 连接到第三输入/输出端子（115）。

54. 发明公开

EP1341304A2 Surface acoustic wave filter 有权
标题翻译：表面声波滤波器
公开(公告)号：EP1341304A2
公开(公告)日：2003-09-03
申请号：EP03290480.7
申请日：2003-02-28
申请人： Murata Manufacturing Co., Ltd.
发明人： Takamine, Yuichi, Murata Manufacturing Co., Ltd.
IPC分类号： H03H9/64
CPC分类号： H03H9/008 , H03H9/0038 , H03H9/0042 , H03H9/0071 , H03H9/0085 , H03H9/14582 , H03H9/14588 , H03H9/14591 , H03H9/14597 , H03H9/6436
摘要： A surface acoustic wave filter (1000) includes, on a piezoelectric substrate (X), longitudinally coupled resonator type surface acoustic wave filter sections (1001,1002), including interdigital transducers, each having a narrow-pitched electrode finger portion in an area where interdigital transducers are adjacent to each other, first surface acoustic wave resonators (1023,1024), between the surface acoustic wave filter sections (1001,1002) and an input terminal (213), and second surface acoustic wave resonators (1021,1022) between the surface acoustic wave filter sections (1001,1002) and output terminals (214,215). The resonance point of the surface acoustic wave resonators (1021-1025) falls within the passband of the surface acoustic wave filter sections (1001,1002), and the antiresonance point of the surface acoustic wave resonators is positioned in the vicinity of the high frequency side of the passband.
摘要翻译：表面声波滤波器（1000）在压电基片（X）上包括纵向耦合的谐振器型表面声波滤波器部分（1001,1002），包括叉指式换能器，每个谐振器型表面声波滤波器部分在其中一个区域中具有窄间距电极指状部分（1001,1002）和输入端子（213）之间的第一声表面波谐振器（1023,1024）和第二声表面波谐振器（1021,1022）相互邻近，在表面声波滤波器部分（1001,1002）和输出端子（214,215）之间。声表面波谐振器（1021-1025）的谐振点落入声表面波滤波器部分（1001,1002）的通带内，并且声表面波谐振器的反谐振点位于高频通带一侧。

55. 发明授权

EP0927457B1 OBERFLÄCHENWELLENFILTER 失效
公开(公告)号：EP0927457B1
公开(公告)日：2001-07-18
申请号：EP97941845.6
申请日：1997-08-28
申请人： EPCOS AG
发明人： BAIER, Thomas , OSTNER, Helmut , SCHROPP, Isidor
IPC分类号： H03H9/64 , H03H9/145
CPC分类号： H03H9/6459 , H03H9/14597
摘要： Surface wave filter with cascaded individual filter structures and inductive compensation of capacitive reactive components of their coupling converters (W2, W3) and execution of the housing by series connection of a coupling inductance Ls, which can be replaced by a short circuit if required.
摘要翻译：表面波滤波器具有级联的独立滤波器结构和对其耦合转换器（W2，W3）的容性无功分量进行电感补偿，并通过串联连接一个耦合电感Ls来执行外壳，如果需要可以用短路代替。

56. 发明公开

EP0978937A4 SURFACE ACOUSTIC WAVE ELEMENT 失效
标题翻译： AKUSTISCHEOBERFLÄCHENWELLENANORDNUNG
公开(公告)号：EP0978937A4
公开(公告)日：2001-02-14
申请号：EP98904417
申请日：1998-02-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： SAKAI ATSUSHI
IPC分类号： H03H9/02 , H03H9/145 , H03H9/25 , H03H9/64
CPC分类号： H03H9/14552 , H03H9/02795 , H03H9/1452 , H03H9/1455 , H03H9/14597 , H03H9/25 , H03H9/6436 , H03H9/6446 , H03H9/6486 , H03H2250/00
摘要： A surface acoustic wave element has a substrate, a first interdigital transducer which is mounted on the substrate, has first comb-tooth electrode fingers and transduces to output inputted electrical signals to surface acoustic waves, and a second interdigital transducer which is mounted on the substrate, has second comb-tooth electrode fingers and transduces to output inputted surface acoustic waves to electrical signals. The ratio of the line width of the first comb-tooth electrode fingers to the space width between the adjacent first comb-tooth electrode fingers is different from the ratio of the line width of the second comb-tooth electrode fingers. By adjusting the capacitive components of an input impedance and an output impedance by means of the first and the second interdigital transducer, the surface acoustic wave element can be matched with an external circuit, thereby reducing the entire size of the surface acoustic wave element.
摘要翻译：声表面波元件具有基板，安装在基板上的第一叉指式换能器，具有第一梳齿电极指并将输入的电信号输出到表面声波的换能器以及安装在基板上的第二叉指式换能器具有第二梳齿电极指并转换成将输入的表面声波输出到电信号。第一梳齿电极指的线宽与相邻的第一梳齿电极指之间的间隔宽度的比率不同于第二梳齿电极指的线宽比。通过利用第一和第二叉指式换能器调节输入阻抗和输出阻抗的电容分量，表面声波元件可以与外部电路匹配，从而减小表面声波元件的整体尺寸。

57. 发明授权

EP0648015B1 Surface acoustic wave filter 失效
公开(公告)号：EP0648015B1
公开(公告)日：2000-05-31
申请号：EP94115793.5
申请日：1994-10-06
申请人： Matsushita Electric Industrial Co., Ltd.
发明人： Yamada, Toru , Ishizaki, Toshio , Nishimura, Kazunori , Murakami, Kozo
IPC分类号： H03H9/64
CPC分类号： H03H9/6479 , H03H7/38 , H03H9/0028 , H03H9/0542 , H03H9/14591 , H03H9/14597 , H03H9/6433 , H03H9/6463

58. 发明公开

EP0921636A3 Surface acoustic wave filter and multistage surface acoustic wave filter 失效
标题翻译：表面声波滤波器和多级声表面波滤波器
公开(公告)号：EP0921636A3
公开(公告)日：2000-05-17
申请号：EP99103711.0
申请日：1997-05-22
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Nakamura, Hiroyuki , Nishimura, Kazunori , Yamada, Toru , Ishizaki, Toshio
IPC分类号： H03H9/64
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： A surface acoustic wave filter on a piezoelectric substrate (101) comprising first and third surface acoustic wave resonators each having a reflector electrode (102b,102c) on both sides of an IDT electrode (102a,104a) as in inter-digital transducer electrode, said resonators being disposed on a piezoelectric substrate in positions in which directions of propagation of the respective surface acoustic waves are parallel with each other, a plurality of strip line electrodes (103a) being disposed in parallel between said first and third surface acoustic wave resonators in the same electrode period as those of the first and third surface acoustic wave resonators, said plural strip line electrodes being connected one another by bus bar electrodes to form a second surface acoustic wave resonator having periodic structured electrode rows, said first and third surface acoustic wave resonators being disposed nearby to said second surface acoustic wave resonator to make acoustic couple, and the adjacent bus bar electrodes between said surface acoustic wave resonators being electrically separated, and all periodic structured electrodes of said second surface acoustic wave resonators being grounded, assuming that an electrode finger crossing width of IDT electrodes (102a,104a) constituting the first and third acoustic wave resonators to be W1, and a strip line length of said periodic structured electrode rows (103a) constituting the second surface acoustic wave resonator to be W2, the relative size of W1 to W2 being set to 1≤ W2/W1.

59. 发明公开

EP0927457A1 OBERFLÄCHENWELLENFILTER 失效
标题翻译：表面滤波器
公开(公告)号：EP0927457A1
公开(公告)日：1999-07-07
申请号：EP97941845.0
申请日：1997-08-28
申请人： SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG
发明人： BAIER, Thomas , OSTNER, Helmut , SCHROPP, Isidor
IPC分类号： H03H9
CPC分类号： H03H9/6459 , H03H9/14597
摘要： Surface wave filter with cascaded individual filter structures and inductive compensation of capacitive reactive components of their coupling converters (W2, W3) and execution of the housing by series connection of a coupling inductance Ls, which can be replaced by a short circuit if required.

60. 发明公开

EP0809357A2 Surface acoustic wave filter and multistage surface acoustic wave filter 失效
标题翻译： AkustischerOberflächenwellenfilterund mehrstufiger akustischerOberflächenwellenfilter
公开(公告)号：EP0809357A2
公开(公告)日：1997-11-26
申请号：EP97108314.2
申请日：1997-05-22
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Nakamura, Hiroyuki , Yamada, Toru , Nishimura, Kazunori , Ishizaki, Toshio
IPC分类号： H03H9/64
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： A surface acoustic wave resonator is constituted by an IDT electrode and reflector electrodes disposed on both sides thereof, on a piezoelectric substrate. Two of said surface acoustic wave resonators are disposed nearby so that the propagation directions of the respective surface acoustic waves are in parallel to each other to make acoustic couple to constitute a surface acoustic wave filter having plural exciting modes with different propagation frequencies. The bus bar electrodes of each of two IDT electrodes are electrically separated from each other, and the leading out electrodes led out from at least two spots on those bus bar electrodes are electrically connected to each other, by which one side of the balanced input and output terminal. As a result, the electrode resistance of the IDT electrode is alleviated to make the insertion loss less.
摘要翻译：表面声波谐振器由压电基板上的IDT电极和设置在其两侧的反射器电极构成。两个所述表面声波谐振器被设置在附近，使得各声表面波的传播方向彼此平行，以使声耦合构成具有不同传播频率的多个激励模式的表面声波滤波器。两个IDT电极中的每一个的汇流条电极彼此电分离，并且从那些汇流条电极上的至少两个点引出的引出电极彼此电连接，通过该平行输入的一侧和输出端子。结果，减轻了IDT电极的电极电阻，使插入损耗减小。

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