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1. 发明授权

EP0316836B1 Surface-acoustic-wave device 失效
标题翻译：表面声波器件
公开(公告)号：EP0316836B1
公开(公告)日：1995-04-05
申请号：EP88118923.7
申请日：1988-11-14
申请人： Oki Electric Industry Company, Limited
发明人： Sakamoto, Nobuyoshi , Huor, Ou Hok
IPC分类号： H03H9/64
CPC分类号： H03H9/6423

2. 发明公开

EP0316836A2 Surface-acoustic-wave device 失效
标题翻译： AkustischeOberflächenwellenanordnung。
公开(公告)号：EP0316836A2
公开(公告)日：1989-05-24
申请号：EP88118923.7
申请日：1988-11-14
申请人： Oki Electric Industry Company, Limited
发明人： Sakamoto, Nobuyoshi , Huor, Ou Hok
IPC分类号： H03H9/64
CPC分类号： H03H9/6423
摘要： A surface-acoustic-wave device consists of a surface-acoustic-wave filter with a capacitance (C) connected in parallel between its input (21) and output leads (31). The capacitance improves the attenuation characteristic of the device on the high-frequency side of the center frequency.
摘要翻译：表面声波装置由在其输入（21）和输出引线（31）之间并联连接的电容（C）的表面声波滤波器组成。电容提高了器件在中心频率的高频侧的衰减特性。

3. 发明公开

EP4352875A1 MULTI-LOOP SIGNAL PROCESSING 审中-实审
公开(公告)号：EP4352875A1
公开(公告)日：2024-04-17
申请号：EP22809999.0
申请日：2022-05-24
申请人： Anlotek Limited
发明人： NIELSEN, Jorgen Staal , NICHOLS, Richard
IPC分类号： H03H17/02 , H03H9/46 , H03H9/64 , H03M1/00 , H04L25/03
CPC分类号： H03M3/402 , H03M3/344 , H03M3/454 , H03M3/37 , H03M3/372 , H03M3/40 , H03H17/0289 , H03H17/0291 , H03H9/6423 , H03H11/1221

4. 发明公开

EP2913923A4 FILTER DEVICE 审中-公开
公开(公告)号：EP2913923A4
公开(公告)日：2016-06-01
申请号：EP13848772
申请日：2013-08-08
申请人： MURATA MANUFACTURING CO
发明人： NOSAKA KOJI
IPC分类号： H03H9/64 , H03H7/09
CPC分类号： H03H9/542 , H03H7/09 , H03H7/1775 , H03H9/6423 , H03H9/6483

5. 发明公开

EP1298797A4 SURFACE ACOUSTIC WAVE DEVICE 审中-公开
标题翻译：声表面波器件
公开(公告)号：EP1298797A4
公开(公告)日：2008-10-01
申请号：EP01945640
申请日：2001-06-27
申请人： TOSHIBA KK
发明人： KAWAGUCHI KYOKO
IPC分类号： H03H9/02 , H03H9/145 , H03H9/64
CPC分类号： H03H9/6423 , H03H9/02866 , H03H9/1455 , H03H9/6493
摘要： An elastic surface wave device comprises a main elastic surface wave filter (F1) formed on a piezoelectric substrate (11) made of monocrystalline lithium tetraborate and an auxiliary elastic surface wave filter (F2) formed on said piezoelectric substrate (11) and connected in parallel with the main elastic surface wave filter (F1) to cancel the higher frequency side unnecessary component attributable to the bulk wave contained in the output of the main elastic surface wave filter (F1).

6. 发明公开

EP0750394A2 Saw coupled resonator filter and radio using such a filter 失效
标题翻译：过滤器gekoppelten akustischenOberflächenwellenresonatorenund Funksystem damit
公开(公告)号：EP0750394A2
公开(公告)日：1996-12-27
申请号：EP96109701.1
申请日：1996-06-17
申请人： MOTOROLA, INC.
发明人： Allen, Donald Eugene , Kwan, Philip Pak-Lin , Stumbo, David Patrick
IPC分类号： H03H9/64
CPC分类号： H03H9/6483 , H03H3/08 , H03H9/6423
摘要： A full duplex radio (10) having improved properties is obtained by using asymmetric surface acoustic wave (SAW) filters (70, 92, 100, 100', 112). The filters (70, 92, 100, 100', 112) are composed of series (50 1 , 50 1 ') and parallel (50 2 , 50 2 ') coupled SAW resonators. Asymmetry is obtained by covering either of the series (50 1 , 50 1 ') or parallel (50 2 , 50 2 ') resonators of each filter (70, 92, 100, 100', 112) with a dielectric layer (96) to increase the SAW coupling coefficient (Cs, Cp) of the covered resonators (50 1 ', 50 2 ') relative to the uncovered resonators (50 1 , 50 2 ). The filters (70, 92, 100, 100', 112) are desirably in pairs arranged with mirror image frequency asymmetry such that the steeper skirts (87, 79) of the frequency response (91', 91'') are adjacent. Greater pass-band bandwidths (77, 77', 77'') can be obtained without adverse affect on transmitter and receiver isolation.
摘要翻译：通过使用非对称表面声波（SAW）滤波器（70,92,100,100'，112）获得具有改进特性的全双工无线电（10）。滤波器（70,92,100,100'，112）由串联（501,501'）和并联（502,502'）耦合的SAW谐振器组成。通过用介电层（96）覆盖每个滤波器（70,92,100,100'，112）的串联（501,501'）或并联（502,502'）的谐振器中的任一个来获得不对称性，以增加SAW 覆盖谐振器（501'，502'）相对于未覆盖谐振器（501,502）的耦合系数（Cs，Cp）。滤波器（70,92,100,100'，112）期望地成对配置成具有镜像频率不对称性，使得频率响应（91'，91“）的较陡的裙部（87,79）相邻。可以获得更大的通带带宽（77,77'，77“），而不会对发射机和接收机隔离造成不利影响。

7. 发明公开

EP1133054A3 Surface acoustic wave device 有权
标题翻译：表面声波器件
公开(公告)号：EP1133054A3
公开(公告)日：2008-07-09
申请号：EP01400622.5
申请日：2001-03-09
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Takamine, Yuichi, c/o (A170) Intel. Property Dpt.
IPC分类号： H03H9/64
CPC分类号： H03H9/6423 , H03H9/0028 , H03H9/6436 , H03H9/6473 , H03H9/6476 , H03H2250/00
摘要： A surface acoustic wave device includes a first surface acoustic wave filter (1) connected between an input terminal (3) and an output terminal (4), a second surface acoustic wave filter (2) having a different center frequency from that of the first surface acoustic wave filter (1), and which is connected between the input terminal (3) and the output terminal (4) and in parallel with the first surface acoustic wave filter, and at least one one-port surface acoustic wave resonator (5,6,9) connected in series with the first or second surface acoustic wave filter (1,2), on at least one side between the input terminal (3) and at least one of the first and second surface acoustic wave filters (1,2), or between the output terminal (4) and at least one of the first and second surface acoustic wave filters (1,2). The anti-resonance frequency of the one one-port surface acoustic wave resonator (5,6,9) is positioned on the side of higher frequencies than those of the pass band of the surface acoustic wave filter disposed on the side where the one-port surface acoustic wave resonator is connected in series.
摘要翻译：一种声表面波器件包括连接在输入端（3）和输出端（4）之间的第一表面声波滤波器（1），具有与第一表面声波滤波器（1）的中心频率不同的第二表面声波滤波器（3）和输出端（4）之间并与第一表面声波滤波器并联的至少一个单端声表面波滤波器（1），以及至少一个单端声表面波谐振器（5）（3）与第一和第二表面声波滤波器（1）中的至少一个之间的至少一侧上与第一或第二表面声波滤波器（1,2）串联连接，，2）或输出端（4）与第一和第二表面声波滤波器（1,2）中的至少一个之间。一个单端口型弹性表面波谐振器（5,6,9）的反共振频率位于比设置在单端口弹性表面波谐振器（5,6,9）一侧的表面声波滤波器的通带高的频率侧，端口表面声波谐振器串联连接。

8. 发明公开

EP1750371A1 Resonant circuit, filter, and antenna duplexer 审中-公开
标题翻译： Resonanzkreis，Filter und Antennenduplexer
公开(公告)号：EP1750371A1
公开(公告)日：2007-02-07
申请号：EP06253832.7
申请日：2006-07-21
申请人： Fujitsu Media Devices Limited , FUJITSU LIMITED
发明人： Inoue, Shogo, c/o Fujitsu Limited , Nishihara, Tokihiro, c/o Fujitsu Limited , Matsuda, Takashi, c/o Fujitsu Limited , Ueda, Masanori, c/o Fujitsu Media Devices Limited
IPC分类号： H03H9/64 , H03H9/54 , H03H9/72 , H03H9/70
CPC分类号： H03H9/542 , H03H9/0576 , H03H9/6423 , H03H9/706 , H03H9/72 , H03H9/725
摘要： There is provided a resonant circuit that includes a resonator (S31), an inductor (L31) connected in parallel with the resonator, and a capacitor (C31) connected in parallel with the resonator. There are also provided a filter and an antenna duplexer having the above-described resonant circuit.
摘要翻译：提供了包括谐振器（S31），与谐振器并联连接的电感器（L31）和与谐振器并联连接的电容器（C31）的谐振电路。还提供了具有上述谐振电路的滤波器和天线双工器。

9. 发明公开

EP0966101A2 Surface acoustic wave filter 审中-公开
标题翻译： AkustischesOberflächenwellenfilter
公开(公告)号：EP0966101A2
公开(公告)日：1999-12-22
申请号：EP98119575.3
申请日：1998-10-16
申请人： FUJITSU LIMITED
发明人： Matsuda, Takashi , Tsutsumi, Jun , Ikata, Osamu , Satoh, Yoshio
IPC分类号： H03H9/64 , H03H9/145
CPC分类号： H03H9/1452 , H03H9/14526 , H03H9/6423
摘要： A surface acoustic wave filter includes a piezoelectric substrate, input and output IDTs, and first and second direction changing IDTs, wherein at least one of the input and output IDTs includes a weighted interdigital transducer, the input and output IDTs being arranged in a direction perpendicular to a propagation direction of a surface acoustic wave (SAW) oscillated by the input IDT; the first direction changing IDT changes the propagation direction of the SAW, which has propagated in a left direction from the input IDT, into a direction towards the output IDT; the second direction changing IDT changes the propagation direction of the SAW, which has propagated in a right direction from the input IDT, into a direction towards the output IDT; and an interval between the input and output IDTs and the first and second direction changing IDTs is set for obtaining at the output IDT the SAW having desired frequency characteristics.
摘要翻译：表面声波滤波器包括压电基板，输入和输出IDT以及第一和第二方向改变IDT，其中输入和输出IDT中的至少一个包括加权叉指换能器，输入和输出IDT沿垂直方向排列到由输入IDT振荡的表面声波（SAW）的传播方向; 第一方向改变IDT将已经从输入IDT沿左方向传播的SAW的传播方向改变成朝向输出IDT的方向; 第二方向改变IDT将已经从输入IDT向右传播的SAW的传播方向改变成朝向输出IDT的方向; 并且设置输入和输出IDT以及第一和第二方向改变IDT之间的间隔，以在输出IDT处获得具有期望频率特性的SAW。

10. 发明公开

EP0260656A3 Unidirectional surface acoustic wave device 失效
标题翻译：单向表面声波设备
公开(公告)号：EP0260656A3
公开(公告)日：1989-05-24
申请号：EP87113477.1
申请日：1987-09-15
申请人： HITACHI, LTD.
发明人： Shiba, Takashi , Fujita, Yuji , Takahashi, Toshimitsu , Yamada, Jun
IPC分类号： H03H9/145 , H03H9/02 , H03H9/64
CPC分类号： H03H9/6423 , H03H9/14505
摘要： In order to present an asymmetric frequncy characteristic in an unidirectional acoustic surface wave device with a simple external phase shifter (25), a transducer (20) formed on a substrate (10) have three interaction areas (acoustic sources) defined by different three electrodes, first electrode (21) being common, second electrode being connected to one end of the phase shifter (22), third electrode (23) being connected to another end of the phase shifter, and distances between interaction areas being unequal to 2 n (n:integer).

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