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1. 发明公开

EP2363955A3 Balanced filter and duplexer 有权
标题翻译：对称滤波器和双工
公开(公告)号：EP2363955A3
公开(公告)日：2011-10-26
申请号：EP11168553.3
申请日：2007-05-22
申请人： Taiyo Yuden Co., Ltd.
发明人： Inoue, Shogo , Matsuda, Takashi , Mitobe, Seichi
IPC分类号： H03H7/42 , H03H9/00 , H03H9/70 , H03H9/72 , H03H9/64 , H03H9/60 , H03H9/05
CPC分类号： H03H7/42 , H01F17/0006 , H01F27/40 , H03H9/0057 , H03H9/0576 , H03H9/605 , H03H9/6476 , H03H9/6483 , H03H9/706 , H03H9/725
摘要： A balanced filter includes: a filter (10) that has at least one unbalanced signal terminal (T1) ; a balun (40) that is a lumped parameter balun that inputs or outputs signals with different phases generated based on a signal input or output from the unbalanced signal terminal (T1) of the filter (10), the balun (40) being formed with an integrated passive device; and a mounting unit in which the filter (10) and the balun (40) are flip-chip mounted.

2. 发明公开

EP1729415A4 BALANCED SURFACE ACOUSTIC WAVE FILTER 有权
标题翻译：平衡表面滤波器
公开(公告)号：EP1729415A4
公开(公告)日：2011-09-07
申请号：EP05770560
申请日：2005-08-10
申请人： MURATA MANUFACTURING CO
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/145 , H03H9/00 , H03H9/64
CPC分类号： H03H9/0071 , H03H9/0038 , H03H9/14582 , H03H9/14588 , H03H9/6436 , H03H9/6476

3. 发明公开

EP2214312A3 Receiving side filter of duplexer and duplexer 审中-公开
标题翻译：双工器和双工器首页过滤器
公开(公告)号：EP2214312A3
公开(公告)日：2011-08-17
申请号：EP10152239.9
申请日：2010-02-01
申请人： Nihon Dempa Kogyo Co., Ltd.
发明人： Yoshimoto, Susumu
IPC分类号： H03H9/02 , H03H9/64 , H03H9/72 , H03H9/00
CPC分类号： H03H9/02913 , H03H9/0057 , H03H9/02921 , H03H9/64 , H03H9/6476 , H03H9/6483 , H03H9/725
摘要： To provide a receiving side filter of a duplexer and a duplexer capable of preventing a leakage of an electric field and a magnetic field to the outside. In a receiving side filter (12) having a longitudinal mode resonator type filter (41,41a,41b) including interdigitated finger electrodes and reflectors respectively formed on a piezoelectric substrate (10) and an unbalanced input signal path (14) and balanced output ports (16) respectively provided on an input side and on an output side of the longitudinal mode resonator type filter, and used on a receiving side of a duplexer, a shield electrode (50) connected to a ground electrode side (18) of the interdigitated finger electrode is disposed to surround a periphery of the receiving side filter (12) so that an electric field and a magnetic field leaked to the outside from the receiving side filter are short-circuited by the shield electrode.

4. 发明公开

EP1480338A3 Surface acoustic wave device 有权
标题翻译： Akustiche表面声波装置
公开(公告)号：EP1480338A3
公开(公告)日：2011-07-27
申请号：EP04291278.2
申请日：2004-05-19
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Watanabe, Norio, intellectual Property Department
IPC分类号： H03H9/64
CPC分类号： H03H9/6496 , H03H9/14514 , H03H9/1455 , H03H9/643 , H03H9/6476
摘要： A surface acoustic wave device (1) includes first (3) and second (4) surface acoustic wave resonator filters connected in parallel to each other. The first double-mode surface acoustic wave resonator filter (3) has resonance frequencies f1 L and f1 H and the second double-mode surface acoustic wave resonator filter (4) has resonance frequencies f2L and f2H, where f1H=f2L. A Q factor of a resonance mode of one (4) of the first and the second double-mode surface acoustic wave resonator filter is less than that of the other (3) surface acoustic wave resonator filter, or an energy transmittance of the reflectors (3c,3d;4c,4d) in at least one of the first and the second surface acoustic wave resonator filters (3,4) ranges from about 12% to about 28%.

5. 发明公开

EP1115200A3 Surface acoustic wave filter 审中-公开
标题翻译：表面声波滤波器
公开(公告)号：EP1115200A3
公开(公告)日：2008-02-20
申请号：EP00403365.0
申请日：2000-11-30
申请人： FUJITSU LIMITED , Fujitsu Media Devices Limited
发明人： Matsuda, Takashi, c/o Fujitsu Limited , Tsutsumi, Jun, c/o Fujitsu Limited , Ikata, Osamu, c/o Fujitsu Limited , Satoh, Yoshio, c/o Fujitsu Limited
IPC分类号： H03H9/02 , H03H9/64 , H03H9/145
CPC分类号： H03H9/0285 , H03H9/02748 , H03H9/14547 , H03H9/14552 , H03H9/14564 , H03H9/6453 , H03H9/6476
摘要： A surface acoustic wave filter includes a piezoelectric substrate, an exciting electrode formed on the piezoelectric substrate and exciting a surface acoustic wave, and a receiving electrode receiving the surface acoustic wave. Both the exciting and receiving electrodes are provided with interdigital electrode fingers having a period p. Either one of the exciting and receiving electrodes is constructed of a plurality of interdigital electrode sub-units (1, 2) having substantially the same electrode surface areas occupied by interdigital electrode fingers. The interdigital electrode sub-units are disposed in a direction perpendicular to a propagation direction of the excited surface acoustic wave and have a positional relation such that the interdigital electrode sub-units are offset to each other by (n ± 1/4)p, wherein n is an integer, in a direction parallel to the propagation direction of the surface acoustic wave.

6. 发明公开

EP1852973A1 BALANCED SURFACE ACOUSTIC WAVE FILTER 审中-公开
标题翻译： SYMMETRISCHEROBERFLÄCHENAKUSTIKWELLENFILTER
公开(公告)号：EP1852973A1
公开(公告)日：2007-11-07
申请号：EP05844788.9
申请日：2005-12-28
申请人： MURATA MANUFACTURING CO., LTD.
发明人： YATA, Masaru, c/o MURATA MANUFACTURING CO., LTD.
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/0085 , H03H9/0071 , H03H9/0222 , H03H9/02748 , H03H9/14582 , H03H9/25 , H03H9/6476
摘要： A balanced acoustic wave filter device that has a balanced-to-unbalanced conversion function and that is capable of reducing the insertion loss in a pass band is provided. A balanced acoustic wave filter device (1) is provided. In the balanced acoustic wave filter device (1), first and second acoustic wave filter sections (6 and 7) that are connected in parallel to an unbalanced terminal (3) are connected to first and second balanced terminals, respectively. The first and second surface acoustic wave filter sections (6 and 7) are configured such that the phases of the first and second balanced terminals (4 and 5) differ by 180 degrees. The first and second acoustic wave filter sections (6 and 7) are longitudinally coupled resonator-type acoustic wave filter sections each including a plurality of IDTS disposed in a direction in which acoustic waves propagate. The total number of pairs of electrode fingers of the IDTS in the second acoustic wave filter section (7) in which the polarities of electrode fingers that are adjacent to each other in an area in which IDTs are adjacent to each other are opposite to each other is greater than the total number of pairs of electrode fingers of the IDTs in the first acoustic wave filter section (6) in which the polarities of electrode fingers that are adjacent to each other in an area in which IDTS are adjacent to each other in the direction in which acoustic waves propagate are equal to each other.
摘要翻译：提供了具有平衡不平衡转换功能并且能够减小通带中的插入损耗的平衡声波滤波器装置。提供一种平衡声波滤波器装置（1）。在平衡声波滤波器装置（1）中，与不平衡端子（3）并联连接的第一和第二声波滤波器部分（6和7）分别连接到第一和第二平衡端子。第一和第二表面声波滤波器部分（6和7）被配置成使得第一和第二平衡端子（4和5）的相位相差180度。第一和第二声波滤波器部分（6和7）是纵向耦合的谐振器型声波滤波器部分，每个声波滤波器部分包括沿声波传播的方向设置的多个IDTS。第二声波滤波器部（7）中的IDTS的电极指的对的总数，其中在IDT彼此相邻的区域中彼此相邻的电极指的极性彼此相反大于第一声波滤波器部分（6）中的IDT的电极指对的总数，其中在IDTS彼此相邻的区域中彼此相邻的电极指的极性在声波传播的方向彼此相等。

7. 发明公开

EP1465337A1 BRANCHING FILTER AND ELECTRONIC APPARATUS USING THE BRANCHING FILTER 审中-公开
标题翻译： ABZWEIGFILTER UND DAMIT AUSGESTATTETES ELEKTRONISCHESGERÄT
公开(公告)号：EP1465337A1
公开(公告)日：2004-10-06
申请号：EP02805469.0
申请日：2002-10-17
申请人： Fujitsu Media Devices Limited , FUJITSU LIMITED
发明人： IWAMOTO, Yasuhide; c/o FUJITSU LIMITED , INOUE, Shogo; c/o FUJITSU LIMITED , IKATA, Osamu; c/o FUJITSU MEDIA DEVICES LIMITED , TSUTSUMI, Jun; c/o FUJITSU LIMITED
IPC分类号： H03H9/72 , H03H9/64
CPC分类号： H03H9/6469 , H01L2224/48227 , H01L2224/73265 , H01L2924/15153 , H01L2924/15313 , H01L2924/16195 , H03H9/0028 , H03H9/0076 , H03H9/0085 , H03H9/0576 , H03H9/6436 , H03H9/6476 , H03H9/6483 , H03H9/72 , H03H9/725 , H03H2250/00
摘要： A duplexer includes two surface acoustic wave filter having different band center frequencies, and a phase matching circuit that matches the phases of the two surface acoustic wave filters to each other. In this duplexer, one of the two surface acoustic wave filters is a ladder type surface acoustic wave filter, while the other one of the two surface acoustic wave filters includes two or more dual-mode type surface acoustic wave filters that are connected in parallel.
摘要翻译：双工器包括具有不同频带中心频率的两个表面声波滤波器，以及将两个声表面波滤波器的相位彼此匹配的相位匹配电路。在这种双工器中，两个表面声波滤波器之一是梯型声表面波滤波器，而两个声表面波滤波器中的另一个包括并联连接的两个或更多个双模式声表面波滤波器。

8. 发明公开

EP1903676A4 ELASTIC WAVE FILTER 审中-公开
标题翻译： ELASTIKWELLENFILTER
公开(公告)号：EP1903676A4
公开(公告)日：2012-08-22
申请号：EP06746752
申请日：2006-05-23
申请人： MURATA MANUFACTURING CO
发明人： SHIBAHARA T
IPC分类号： H03H9/64 , H03H9/00 , H03H9/02 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0076 , H03H9/0085 , H03H9/02748 , H03H9/02834 , H03H9/14594 , H03H9/6476

9. 发明公开

EP2363955A2 Balanced filter and duplexer 有权
标题翻译： Symmetrischer过滤器和双工器
公开(公告)号：EP2363955A2
公开(公告)日：2011-09-07
申请号：EP11168553.3
申请日：2007-05-22
申请人： Taiyo Yuden Co., Ltd.
发明人： Inoue, Shogo , Matsuda, Takashi , Mitobe, Seichi
IPC分类号： H03H7/42 , H03H9/00 , H03H9/70 , H03H9/72 , H03H9/64
CPC分类号： H03H7/42 , H01F17/0006 , H01F27/40 , H03H9/0057 , H03H9/0576 , H03H9/605 , H03H9/6476 , H03H9/6483 , H03H9/706 , H03H9/725
摘要： A balanced filter includes: a filter (10) that has at least one unbalanced signal terminal (T1) ; a balun (40) that is a lumped parameter balun that inputs or outputs signals with different phases generated based on a signal input or output from the unbalanced signal terminal (T1) of the filter (10), the balun (40) being formed with an integrated passive device; and a mounting unit in which the filter (10) and the balun (40) are flip-chip mounted.
摘要翻译：平衡滤波器包括：具有至少一个不平衡信号端子（T1）的滤波器（10）; 平衡 - 不平衡转换器（40），其是输入或输出基于来自所述滤波器（10）的不平衡信号端子（T1）的信号输入或输出的不同相位的信号的平衡 - 不平衡转换器（40），所述平衡 - 不平衡变换器（40）形成有集成无源器件; 以及安装单元，其中过滤器（10）和平衡 - 不平衡变换器（40）被倒装安装。

10. 发明授权

EP1860773B1 Balanced filter 有权转让
标题翻译：对称的过滤器
公开(公告)号：EP1860773B1
公开(公告)日：2011-07-13
申请号：EP07108614.4
申请日：2007-05-22
申请人： Taiyo Yuden Co., Ltd.
发明人： Inoue, Shogo c/o FUJITSU LIMITED , Matsuda, Takashi c/o FUJITSU LIMITED , Mitobe, Seiichi c/o FUJITSU MEDIA DEVICES LIMITED
IPC分类号： H03H7/42 , H03H9/00 , H03H9/64 , H03H9/70 , H03H9/72
CPC分类号： H03H7/42 , H01F17/0006 , H01F27/40 , H03H9/0057 , H03H9/0576 , H03H9/605 , H03H9/6476 , H03H9/6483 , H03H9/706 , H03H9/725

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