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1. 发明授权

US07019435B2 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US07019435B2
公开(公告)日：2006-03-28
申请号：US10812026
申请日：2004-03-30
申请人： Shinobu Nakaya , Hiroyuki Nakamura , Shigeru Tsuzuki
发明人： Shinobu Nakaya , Hiroyuki Nakamura , Shigeru Tsuzuki
IPC分类号： H03H9/64 , H03H9/145
CPC分类号： H03H9/6433 , H03H9/0038 , H03H9/0071 , H03H9/02685 , H03H9/14588 , H03H9/643 , H03H9/6469 , H03H9/6473
摘要： In a SAW device containing two or more longitudinal mode coupling type SAW elements connected in parallel, each SAW element includes at least three comb shaped electrode pairs and a reflector electrode provided at both sides of the comb shaped electrodes. One part of respective comb shaped electrode pairs forming IDT electrodes is connected together in common by a ground connection electrode and connected with a ground pad. This configuration enables the number of connection pads to be minimized, thus providing a SAW device that is small in size and superior in filter characteristics.
摘要翻译：在包含并联连接的两个或更多个纵向耦合型SAW元件的SAW器件中，每个SAW元件包括至少三个梳状电极对和设置在梳状电极两侧的反射器电极。形成IDT电极的各个梳状电极对的一部分共同地由接地连接电极连接在一起，并与接地垫连接。这种配置使连接焊盘的数量最小化，从而提供尺寸小且滤波器特性优异的SAW器件。

2. 发明授权

US06710683B2 Surface acoustic wave filter and communications apparatus using the same 有权
标题翻译：表面声波滤波器和使用它的通信装置
公开(公告)号：US06710683B2
公开(公告)日：2004-03-23
申请号：US10114866
申请日：2002-04-01
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Tsutomu Igaki , Shigeru Tsuzuki , Ken Matsunami , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Tsutomu Igaki , Shigeru Tsuzuki , Ken Matsunami , Toshio Ishizaki
IPC分类号： H03H964
CPC分类号： H03H9/6426
摘要： A surface acoustic wave filter has a piezoelectric substrate and at least two interdigital transducer electrodes on the piezoelectric substrate, wherein at least one of the interdigital transducer electrodes includes a unidirectional electrode and bidirectional electrode, and the length &lgr;d of a basic cell of the unidirectional electrode is longer than the length &lgr;s of a basic cell of the bidirectional electrode.
摘要翻译：表面声波滤波器在压电基板上具有压电基板和至少两个叉指式换能器电极，其中叉指式换能器电极中的至少一个包括单向电极和双向电极，并且单向电极的基本单元的长度lambdad为长于双向电极的基本电池的长度lambdas。

3. 发明申请

US20050255824A1 Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same 有权
公开(公告)号：US20050255824A1
公开(公告)日：2005-11-17
申请号：US11166810
申请日：2005-06-24
申请人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
发明人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
IPC分类号： H03H3/08 , H03H9/00 , H03H9/02 , H03H9/05 , H03H9/10 , H03H9/64 , H04B1/16
CPC分类号： H03H9/0038 , H01L2224/05571 , H01L2224/05573 , H01L2224/16225 , H01L2924/15174 , H01L2924/15192 , H01L2924/16195 , H03H9/0042 , H03H9/02874 , H03H9/02952 , H03H9/0542 , H03H9/059 , H03H9/1071
摘要： A surface acoustic wave filter element has a piezoelectric substrate; and a plurality of inter-digital transducer (IDT) electrodes formed on the piezoelectric substrate, wherein at least one of the plurality of IDT electrodes is connected to a balanced type terminal and other IDT electrodes are connected to balanced type terminals or unbalanced type terminals, and first wiring electrode means which is connected or to be connected to the at least one IDT electrode and second wiring electrode means which is connected or to be connected to the other IDT electrodes are disposed on planes different from each other.

4. 发明授权

US06476691B1 Surface acoustic wave filter 有权
标题翻译：表面声波滤波器
公开(公告)号：US06476691B1
公开(公告)日：2002-11-05
申请号：US09762025
申请日：2001-04-06
申请人： Shigeru Tsuzuki , Tsutomu Igaki , Ken Matsunami , Kazunori Nishimura , Hiroyuki Nakamura , Toru Yamada
发明人： Shigeru Tsuzuki , Tsutomu Igaki , Ken Matsunami , Kazunori Nishimura , Hiroyuki Nakamura , Toru Yamada
IPC分类号： H03H964
CPC分类号： H03H9/6433 , H03H9/0076 , H03H9/02637 , H03H9/14505 , H03H9/14529 , H03H9/14538 , H03H9/14552
摘要： A SAW filter comprising a piezoelectric substrate and at least two filter tracks formed on the substrate, each having at least two IDT electrodes for input and output. The two filter tracks have substantially the same phase within a pass band, while it is substantially inverse-phased outside the pass band. For realizing the above-described conditions, input IDT electrode of one filter track is connected in parallel with input IDT electrode of the other filter track, while output IDT electrode of one filter track is connected in parallel with output IDT electrode of the other filter track. Furthermore, frequency values of said two filter tracks substantially coincide at a point 3 dB lower from the peak transfer function value. Thus the above-configured SAW filter of the present invention is smaller in the overall size and offers a broad pass band and a steep attenuation characteristic.
摘要翻译：一种SAW滤波器，包括压电衬底和形成在衬底上的至少两个滤波器轨道，每个滤波器轨道具有用于输入和输出的至少两个IDT电极。两个滤波器轨道在通带内具有基本上相同的相位，而在通带外部基本上是反相的。为了实现上述条件，一个滤波器轨道的输入IDT电极并联连接到另一滤波器轨道的输入IDT电极，而一个滤波器轨道的输出IDT电极与另一滤波器轨迹的输出IDT电极并联连接。此外，所述两个滤波器轨道的频率值基本上与从峰值传递函数值降低3dB的点相重合。因此，本发明的上述配置的SAW滤波器的总体尺寸较小，并且具有宽的通带和陡峭的衰减特性。

5. 发明授权

US07075391B2 Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same 有权
公开(公告)号：US07075391B2
公开(公告)日：2006-07-11
申请号：US11166495
申请日：2005-06-24
申请人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
发明人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
IPC分类号： H03H9/64
CPC分类号： H03H9/0038 , H01L2224/05571 , H01L2224/05573 , H01L2224/16225 , H01L2924/15174 , H01L2924/15192 , H01L2924/16195 , H03H9/0042 , H03H9/02874 , H03H9/02952 , H03H9/0542 , H03H9/059 , H03H9/1071
摘要： A surface acoustic wave filter element has a piezoelectric substrate; and a plurality of inter-digital transducer (IDT) electrodes formed on the piezoelectric substrate, wherein at least one of the plurality of IDT electrodes is connected to a balanced type terminal and other IDT electrodes are connected to balanced type terminals or unbalanced type terminals, and first wiring electrode means which is connected or to be connected to the at least one IDT electrode and second wiring electrode means which is connected or to be connected to the other IDT electrodes are disposed on planes different from each other.

6. 发明授权

US06650206B2 Surface acoustic wave filter and communication apparatus with the same 有权
标题翻译：表面声波滤波器和通信装置相同
公开(公告)号：US06650206B2
公开(公告)日：2003-11-18
申请号：US09951658
申请日：2001-09-13
申请人： Hiroyuki Nakamura , Toru Yamada , Shigeru Tsuzuki , Kazunori Nishimura
发明人： Hiroyuki Nakamura , Toru Yamada , Shigeru Tsuzuki , Kazunori Nishimura
IPC分类号： H03H964
CPC分类号： H03H9/6426
摘要： A surface acoustic wave filter, has: a piezoelectric substrate; and a at least two filter tracks having at least an input interdigital transducer electrode and an output interdigital transducer electrode provided on said piezoelectric substrate, wherein the respective input interdigital transducer electrodes of said at least two filter tracks are brought into connection in parallel; the respective output interdigital transducer electrodes of said at least two filter tracks are brought into connection in parallel, and overlapping widths of electrode fingers of said input interdigital transducer electrode and output interdigital transducer electrode are different from each other for each of said at least two filter tracks.
摘要翻译：一种表面声波滤波器，具有：压电基板; 以及至少两个滤波器轨道，其至少具有设置在所述压电基板上的输入叉指换能器电极和输出叉指式换能器电极，其中所述至少两个滤波器轨道的相应输入叉指式换能器电极并联连接;相应的输出所述至少两个滤波器轨道的叉指换能器电极并联连接，并且所述输入叉指换能器电极和输出叉指式换能器电极的电极指的重叠宽度对于所述至少两个滤波器轨道中的每一个彼此不同。

7. 发明授权

US07579931B2 Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same 有权
标题翻译：表面声波滤波器元件，表面声波滤波器和通信装置使用相同
公开(公告)号：US07579931B2
公开(公告)日：2009-08-25
申请号：US11166810
申请日：2005-06-24
申请人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
发明人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
IPC分类号： H04B1/10 , H04B1/16
CPC分类号： H03H9/0038 , H01L2224/05571 , H01L2224/05573 , H01L2224/16225 , H01L2924/15174 , H01L2924/15192 , H01L2924/16195 , H03H9/0042 , H03H9/02874 , H03H9/02952 , H03H9/0542 , H03H9/059 , H03H9/1071
摘要： A surface acoustic wave filter element has a piezoelectric substrate; and a plurality of inter-digital transducer (IDT) electrodes formed on the piezoelectric substrate, wherein at least one of the plurality of IDT electrodes is connected to a balanced type terminal and other IDT electrodes are connected to balanced type terminals or unbalanced type terminals, and first wiring electrode means which is connected or to be connected to the at least one IDT electrode and second wiring electrode means which is connected or to be connected to the other IDT electrodes are disposed on planes different from each other.
摘要翻译：表面声波滤波器元件具有压电基板; 以及形成在所述压电基板上的多个数字间转换器（IDT）电极，其中所述多个IDT电极中的至少一个连接到平衡型端子，并且其它IDT电极连接到平衡型端子或不平衡型端子，并且连接或连接到所述至少一个IDT电极的第一布线电极装置和连接到或连接到其它IDT电极的第二布线电极装置设置在彼此不同的平面上。

8. 发明授权

US06930570B2 Surface acoustic wave filter element, surface acoustic wave filter and communication device using the same 有权
公开(公告)号：US06930570B2
公开(公告)日：2005-08-16
申请号：US10283375
申请日：2002-10-29
申请人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
发明人： Hiroyuki Nakamura , Keiji Onishi , Akio Tsunekawa , Shigeru Tsuzuki
IPC分类号： H03H3/08 , H03H9/00 , H03H9/02 , H03H9/05 , H03H9/10 , H03H9/64 , H04B1/16
CPC分类号： H03H9/0038 , H01L2224/05571 , H01L2224/05573 , H01L2224/16225 , H01L2924/15174 , H01L2924/15192 , H01L2924/16195 , H03H9/0042 , H03H9/02874 , H03H9/02952 , H03H9/0542 , H03H9/059 , H03H9/1071
摘要： A surface acoustic wave filter element has a piezoelectric substrate; and a plurality of inter-digital transducer (IDT) electrodes formed on the piezoelectric substrate, wherein at least one of the plurality of IDT electrodes is connected to a balanced type terminal and other IDT electrodes are connected to balanced type terminals or unbalanced type terminals, and first wiring electrode means which is connected or to be connected to the at least one IDT electrode and second wiring electrode means which is connected or to be connected to the other IDT electrodes are disposed on planes different from each other.

9. 发明授权

US06891450B2 Surface acoustic wave filter, balanced type filter and communication device 有权
标题翻译：表面声波滤波器，平衡型滤波器和通信装置
公开(公告)号：US06891450B2
公开(公告)日：2005-05-10
申请号：US10160411
申请日：2002-05-30
申请人： Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
发明人： Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
IPC分类号： H03H9/00 , H03H9/64 , H03H9/72
CPC分类号： H03H9/0042 , H03H9/0038 , H03H9/0061 , H03H9/02952 , H03H9/14588
摘要： A longitudinal mode type surface acoustic wave filter comprising a first IDT electrode, second and third IDT electrodes, and first and second reflector electrodes are formed on a piezoelectric substrate. The upper electrode of the first IDT electrode is connected to one of balanced type terminals, and the lower electrode of the first IDT electrode is connected to the other balanced type terminal. Also, the lower electrode of the second IDT electrode is connected to an unbalanced type terminal, and the lower electrode is grounded. The lower electrode of the third IDT electrode is connected to the unbalanced type terminal, and the upper electrode is grounded.
摘要翻译：包括第一IDT电极，第二和第三IDT电极以及第一和第二反射器电极的纵向模式型表面声波滤波器形成在压电基板上。第一IDT电极的上部电极与平衡型端子中的一个连接，第一IDT电极的下部电极与另一个平衡型端子连接。此外，第二IDT电极的下电极连接到不平衡型端子，下电极接地。第三IDT电极的下部电极与不平衡型端子连接，上部电极接地。

10. 发明授权

US07012480B2 Surface acoustic wave filter, balanced type filter and communication device 有权
标题翻译：表面声波滤波器，平衡型滤波器和通信装置
公开(公告)号：US07012480B2
公开(公告)日：2006-03-14
申请号：US10850243
申请日：2004-05-20
申请人： Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
发明人： Hiroyuki Nakamura , Narihiro Mita , Shigeru Tsuzuki , Toru Yamada
IPC分类号： H03H9/64 , H03H9/72 , H03H9/42
CPC分类号： H03H9/0042 , H03H9/0038 , H03H9/0061 , H03H9/02952 , H03H9/14588
摘要： A balanced type filter includes at least one balanced type terminal. At least one predetermined reactance element is connected between the balanced type terminal and another terminal. A parallel resonance circuit is formed by parasitic components existing between the balanced type terminal and the other terminal, and the reactance element. The other terminal is of balanced type or unbalanced type.
摘要翻译：平衡型过滤器包括至少一个平衡型端子。至少一个预定电抗元件连接在平衡型端子和另一端子之间。并联谐振电路由存在于平衡型端子和另一端子之间的寄生元件和电抗元件形成。另一个端子是平衡型或不平衡型。

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