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1. 发明授权

US06784759B2 Antenna duplexer and communication apparatus 失效
标题翻译：天线双工器和通信设备
公开(公告)号：US06784759B2
公开(公告)日：2004-08-31
申请号：US10202799
申请日：2002-07-25
申请人： Tomoya Maekawa , Hiroyuki Nakamura , Toru Yamada , Toshio Ishizaki
发明人： Tomoya Maekawa , Hiroyuki Nakamura , Toru Yamada , Toshio Ishizaki
IPC分类号： H03H746
CPC分类号： H01P1/2135 , H01L2223/6677 , H01L2224/16227 , H01L2224/81192 , H01L2924/15153 , H01L2924/15159 , H01L2924/15192 , H01L2924/15313 , H01L2924/15323 , H01L2924/3511 , H03H9/0576 , H03H9/725 , H03H2007/013
摘要： An antenna duplexer has a receiving filter having a surface acoustic wave device; a transmitting filter having a dielectric resonator; and a matching circuit for matching the receiving filter and the transmitting filter with an antenna respectively, wherein the transmitting filter, receiving filter, and matching circuit are integrated with each other.
摘要翻译：天线双工器具有具有表面声波装置的接收滤波器;具有介质谐振器的发射滤波器; 以及分别与天线匹配接收滤波器和发射滤波器的匹配电路，其中发射滤波器，接收滤波器和匹配电路彼此集成。

2. 发明授权

US06747528B2 Dielectric filter, antenna duplexer, and communications appliance 失效
标题翻译：介质滤波器，天线双工器和通讯设备
公开(公告)号：US06747528B2
公开(公告)日：2004-06-08
申请号：US10337995
申请日：2003-01-08
申请人： Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
发明人： Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
IPC分类号： H01P512
CPC分类号： H01P1/20345 , H01P1/2135
摘要： A dielectric filter including a plurality of resonators, and at least one transmissions line provided among said plurality of resonators. A band rejection characteristic is formed around a resonance frequency of said resonator, and a line length of said transmission line is shorter than ¼ of a wavelength corresponding to the resonance frequency of said resonator.
摘要翻译：一种包括多个谐振器的介质滤波器，以及设置在所述多个谐振器中的至少一个传输线。在所述谐振器的谐振频率周围形成带阻特性，并且所述传输线的线路长度短于对应于所述谐振器的谐振频率的波长的1/4。

3. 发明授权

US06529096B2 Dielectric filter, antenna duplexer, and communications appliance 有权
标题翻译：介质滤波器，天线双工器和通讯设备
公开(公告)号：US06529096B2
公开(公告)日：2003-03-04
申请号：US09748110
申请日：2000-12-27
申请人： Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
发明人： Tomoya Maekawa , Hiroshi Kushitani , Hiroshi Shigemura , Toru Yamada , Toshio Ishizaki , Hideaki Nakakubo
IPC分类号： H01P1213
CPC分类号： H01P1/20345 , H01P1/2135
摘要： A dielectric filter including a plurality of resonators, and at least one transmission line provided among said plurality of resonators. A band rejection characteristic is formed around a resonance frequency of the resonator, and a line length of the transmission line is shorter than ¼ of a wavelength corresponding to the resonance frequency of the resonator.
摘要翻译：包括多个谐振器的介质滤波器，以及设置在所述多个谐振器中的至少一个传输线。在谐振器的谐振频率周围形成带阻特性，并且传输线的线路长度短于对应于谐振器的谐振频率的波长的1/4。

4. 发明授权

US06965284B2 Dielectric filter, antenna duplexer 失效
标题翻译：介质滤波器，天线双工器
公开(公告)号：US06965284B2
公开(公告)日：2005-11-15
申请号：US10220037
申请日：2002-02-26
申请人： Tomoya Maekawa , Yasuhiro Sugaya , Toru Yamada , Toshio Ishizaki
发明人： Tomoya Maekawa , Yasuhiro Sugaya , Toru Yamada , Toshio Ishizaki
IPC分类号： H01P1/203 , H01P1/213 , H01P11/00 , H03H7/01
CPC分类号： H01P1/20345 , H01P1/2135 , H01P11/007
摘要： A dielectric filter includes resonator electrodes, an inter-stage coupling capacitor electrode, and an input/output coupling capacitor electrode on dielectric substrates, respectively. The resonator electrodes are electro-magnetically coupled to each other to form a tri-plate structure, are made of a metallic foil embedded in a resonator dielectric substrate. Another dielectric filter includes an upper shield electrode dielectric substrate, an inter-stage coupling capacitor dielectric substrate, a resonator dielectric substrate, and an input/output coupling capacitor dielectric substrate which are made of a composite dielectric material including a high-dielectric-constant material and a low-dielectric-constant material. The above described arrangement provides the dielectric filter with an improved Q factor of a resonator, a low loss, and a high attenuation.
摘要翻译：介质滤波器分别包括谐振器电极，级间耦合电容器电极和介电基片上的输入/输出耦合电容器电极。谐振器电极彼此电磁耦合以形成三板结构，由嵌入在谐振器电介质基板中的金属箔制成。另一个介质滤波器包括由包括高介电常数材料的复合介电材料制成的上屏蔽电极介质基板，级间耦合电容器介质基板，谐振电介质基板和输入/输出耦合电容器电介质基板和低介电常数材料。上述布置为介质滤波器提供了谐振器的改进的Q因子，低损耗和高衰减。

5. 发明授权

US06801100B2 Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same 有权
标题翻译：数字式换能器，表面声波滤波器及使用其的通信装置
公开(公告)号：US06801100B2
公开(公告)日：2004-10-05
申请号：US10051310
申请日：2002-01-22
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki , Narihiro Mita
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki , Narihiro Mita
IPC分类号： H03H964
CPC分类号： H03H9/0042 , H03H9/0038 , H03H9/0061 , H03H9/02763 , H03H9/14588 , H03H9/6436 , H03H9/6443 , H03H9/6463 , H03H9/6479
摘要： An inter-digital transducer has a piezoelectric substrate; and an IDT (inter-digital transducer) electrode having a pair of upper bus bar electrode and lower bus bar electrode placed facing each other on the piezoelectric substrate and a plurality of electrode fingers placed on the piezoelectric substrate each being led out from either the upper bus bar electrode or the lower bus bar electrode toward the other bus bar electrode, wherein the IDT electrode is constructed of a plurality of divisional IDT electrodes and connected to a balanced type terminal.
摘要翻译：数字式换能器具有压电基板; 以及IDT（数字式换能器）电极，其具有在压电基板上彼此面对的一对上汇流条电极和下汇流条电极，并且设置在压电基板上的多个电极指每个从上部汇流条电极或下汇流条电极朝向另一母线电极，其中IDT电极由多个分开的IDT电极构成并连接到平衡型端子。

6. 发明授权

US06822534B2 Laminated electronic component, laminated duplexer and communication device 有权
标题翻译：层压电子元件，层压双工器和通信设备
公开(公告)号：US06822534B2
公开(公告)日：2004-11-23
申请号：US10221971
申请日：2003-01-10
申请人： Kazuhide Uriu , Hiroyuki Nakamura , Toru Yamada , Tsutomu Matsumura , Hiroshi Kagata , Kouji Kawakita , Toshio Ishizaki
发明人： Kazuhide Uriu , Hiroyuki Nakamura , Toru Yamada , Tsutomu Matsumura , Hiroshi Kagata , Kouji Kawakita , Toshio Ishizaki
IPC分类号： H03H701
CPC分类号： H01P1/20345 , H01P1/2039
摘要： A laminated filter includes: a first dielectric layer having a first shield electrode on one principal plane; a second dielectric layer having resonator electrodes on one principal plane; a third dielectric layer having a coupling electrode provided facing part of the above-described resonator electrodes; a fourth dielectric layer having a second shield electrode on one principal plane; a fifth dielectric layer whose at least one principal plane is exposed outside; and a grounding electrode provided on the other principal plane of the above-described dielectric layer and/or the above-described one principal plane of the above-described fifth dielectric layer, and the above-described first grounding electrode and the above-described first shield electrode are electrically connected through a via hole provided in the above-described first dielectric layer.
摘要翻译：层压滤波器包括：第一介电层，其在一个主平面上具有第一屏蔽电极; 一个第二电介质层，在一个主平面上具有谐振器电极; 第三电介质层，其具有面对所述谐振器电极的一部分设置的耦合电极; 第四电介质层，在一个主平面上具有第二屏蔽电极; 第五电介质层，其至少一个主平面暴露在外面; 以及设置在上述介电层的另一个主面上的接地电极和/或上述第五电介质层的上述一个主面，以及上述第一接地电极和上述第一接地电极屏蔽电极通过设置在上述第一电介质层中的通孔电连接。

7. 发明授权

US07324493B2 3-frequency branching circuit, branching circuit and radio communication equipment 失效
标题翻译： 3频分支电路，分支电路和无线电通信设备
公开(公告)号：US07324493B2
公开(公告)日：2008-01-29
申请号：US10311915
申请日：2001-06-25
申请人： Toru Yamada , Tsutomu Matsumura , Toshio Ishizaki , Hiroyuki Nakamura , Kazuhide Uriu
发明人： Toru Yamada , Tsutomu Matsumura , Toshio Ishizaki , Hiroyuki Nakamura , Kazuhide Uriu
IPC分类号： H04B7/216
CPC分类号： H04B1/0057 , H01P1/15 , H04B1/005 , H04B1/006 , H04B1/406 , H04B1/44
摘要： A 3-frequency branching circuit in the past could not be used for a system wherein a TDMA method such as GSM and DCS and a W-CDMA method such as UMTS are mixed. The 3-frequency branching circuit equipped with branching means having first and second internal terminals, an antenna terminal of connecting to an antenna, a low-pass filter connected between the first internal terminal and the antenna terminal, and a high-pass filter connected between the second internal terminal and the antenna terminal, a switching circuit of switching between GSM TX and GSM RX, a switching circuit of switching between DCS TX, DCS RX and a third internal terminal, and a duplexer connected to the third internal terminal.
摘要翻译：过去的3频分支电路不能用于其中诸如GSM和DCS的TDMA方法和诸如UMTS的W-CDMA方法的系统混合。具有分支装置的3频分支电路具有第一和第二内部端子，连接到天线的天线端子，连接在第一内部端子和天线端子之间的低通滤波器以及连接在第一内部端子和天线端子之间的高通滤波器第二内部终端和天线终端，在GSM TX和GSM RX之间切换的切换电路，在DCS TX，DCS RX和第三内部终端之间切换的切换电路以及连接到第三内部终端的双工器。

8. 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。

9. 发明授权

US06351196B1 Surface acoustic wave filter and multistage surface acoustic wave filter 有权
标题翻译：表面声波滤波器和多级表面声波滤波器
公开(公告)号：US06351196B1
公开(公告)日：2002-02-26
申请号：US09390653
申请日：1999-09-07
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
IPC分类号： H03H964
CPC分类号： H03H9/6443 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6463 , H03H9/6479
摘要： Disclosed is a surface acoustic wave filter on a piezoelectric substrate. The filter includes at least two surface acoustic wave resonators that each has a reflector electrode on both sides of an IDT electrode as an inter-digital transducer electrode. At least two of the resonators are disposed on a piezoelectric substrate in positions near each other so that the propagation direction of surface acoustic waves are in parallel to make an acoustic coupling. In an embodiment, the acoustic coupling is a direct coupling. The IDT electrode has a plurality of electrode fingers connected so as not to cancel respective electric charges. The IDT electrode is constituted by at least three divisional IDT electrodes. A pair of the electrode fingers can have a reverse phase relation with respect to each other. Also, in a multi-stage surface acoustic wave filter, the electrode fingers can be included in an upper IDT electrode of a top stage of the filter, and in a lower IDT electrode of a bottom stage of such filter.
摘要翻译：公开了压电基板上的表面声波滤波器。滤波器包括至少两个表面声波谐振器，每个表面声波谐振器在IDT电极的两侧上具有作为数字间换能器电极的反射器电极。至少两个谐振器在彼此相邻的位置处设置在压电基板上，使得声表面波的传播方向平行以形成声耦合。在一个实施例中，声耦合是直接耦合。 IDT电极具有连接成不抵消各自的电荷的多个电极指。 IDT电极由至少三个分开的IDT电极构成。一对电极指可以相对于彼此具有反相位关系。此外，在多级表面声波滤波器中，电极指可以包括在过滤器的顶级的上部IDT电极中，并且可以包括在该过滤器的底部的下部IDT电极中。

10. 发明授权

US06348845B2 Surface acoustic wave filter and multistage surface acoustic wave filter 有权
标题翻译：表面声波滤波器和多级表面声波滤波器
公开(公告)号：US06348845B2
公开(公告)日：2002-02-19
申请号：US09794035
申请日：2001-02-28
申请人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toru Yamada , Kazunori Nishimura , Toshio Ishizaki
IPC分类号： H03H964
CPC分类号： H03H9/6479 , H03H9/0028 , H03H9/02763 , H03H9/02913 , H03H9/02992 , H03H9/14588 , H03H9/14597 , H03H9/6443 , H03H9/6463
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，平衡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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