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公开(公告)号：US5973579A
公开(公告)日：1999-10-26
申请号：US879650
申请日：1997-06-20
申请人： Yasuteru Asakawa , Toshio Ishizaki , Toru Yamada , Hiroaki Kosugi
发明人： Yasuteru Asakawa , Toshio Ishizaki , Toru Yamada , Hiroaki Kosugi
CPC分类号： H03H9/6483 , H03H3/04 , H03H9/02118 , H03H9/1014 , H03H9/1035 , H03H9/581 , H03H9/605 , Y10T29/42
摘要： A piezoelectric filter is one not changing in the holding position of resonator in spite of impulse, small in the number of parts, easy to assemble from one direction, small, thin, and stable in characteristic. For example, as shown in FIG. 7, on electrode patterns on a package 10 forming wiring electrode patterns 11, holding protrusions 13 for holding resonators, and partition boards 14 for positioning resonators, a rectangular plate type piezoelectric resonators 12 are adhered with conductive adhesive. The rectangular plate type piezoelectric resonators 12 and the package 10 are adhered and reinforced from above with a vibration absorbing member 15, and wiring is formed from above the resonators by a wire bonding 16, thereby wiring resonators in a ladder form. Or, as shown in FIG. 11, after forming electrode patterns 102 on a piezoelectric substrate 101, a rectangular plate resonator 104 is cut out from a piezoelectric substrate 101 by laser in a shape consecutive to the piezoelectric substrate 101 by the node of length expander mode, and the piezoelectric substrate 101 is enclosed by a spacer 106 and a sheet 107 from above and beneath.
摘要翻译： 压电滤波器是谐振器的保持位置不变的部分，部件数量少，易于从一个方向组装，小，薄，稳定的特性。 例如，如图1所示。 如图7所示，在形成布线电极图案11的保持用谐振器用保持突起13的封装体10上的电极图形和用于定位谐振器的分隔板14上，用导电性粘合剂粘合矩形板状压电谐振器12。 矩形板型压电谐振器12和封装10从上方用振动吸收构件15粘接和加强，并且通过引线接合16从谐振器的上方形成布线，从而以梯形形式布线谐振器。 或者，如图1所示。 如图11所示，在压电基板101上形成电极图案102之后，通过长度扩展器模式的节点以与压电基板101连续的形状的激光从压电基板101切出矩形板谐振器104，并且压电基板101 被隔板106和片材107从上方和下方包围。
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公开(公告)号：US5581141A
公开(公告)日：1996-12-03
申请号：US319790
申请日：1994-10-07
CPC分类号： H03H9/6479 , H03H9/0028 , H03H9/0542 , H03H9/14591 , H03H9/14597 , H03H9/6433 , H03H9/6463 , H03H7/38
摘要： A SAW resonator disposed with an IDT electrode and reflector electrodes is formed on the surface of a piezoelectric substrate. Three pieces of the SAW resonator form an acoustic coupling by being disposed close to each other, electrode fingers comprising the IDT electrode in the center are all grounded, and IDT electrode fingers are electrically independent on the side to be connected to input-output terminals of the IDT electrodes disposed outside. As a result, three excitation modes having different propagation frequencies are generated which are used to attain a broad band SAW resonator filter. When these three pairs of the IDT electrode are electrically independent, a balanced input-output can be achieved, and excellent out-of-band rejection characteristics can be obtained.
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公开(公告)号：US06995636B2
公开(公告)日：2006-02-07
申请号：US10758983
申请日：2004-01-16
申请人： Takehiko Yamakawa , Toru Yamada , Toshio Ishizaki , Minoru Tachibana , Toshiaki Nakamura , Hiroyuki Nakamatsu
发明人： Takehiko Yamakawa , Toru Yamada , Toshio Ishizaki , Minoru Tachibana , Toshiaki Nakamura , Hiroyuki Nakamatsu
CPC分类号： H01P1/2053
摘要： A small in-band-flat-group-delay type dielectric filter having low-loss characteristics with a small amplitude deviation and uniform-group-delay frequency characteristics is obtained, which enables broad-band characteristics to be obtained easily. The in-band-flat-group-delay type dielectric filter includes a plurality of dielectric coaxial resonators, a coupling circuit comprising a combination of reactive elements, with which the dielectric coaxial resonators are coupled to one another, and input/output terminals connected to ends of the coupling circuit. The dielectric coaxial resonators coupled to the input/output terminals are allowed to have a different characteristic impedance from that of the inter-stage dielectric coaxial resonators.
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公开(公告)号：US06941650B2
公开(公告)日：2005-09-13
申请号：US10253294
申请日：2002-09-24
申请人： Hideaki Nakakubo , Toshio Ishizaki , Toru Yamada , Hiroshi Kagata , Tatsuya Inoue , Shoichi Kitazawa
发明人： Hideaki Nakakubo , Toshio Ishizaki , Toru Yamada , Hiroshi Kagata , Tatsuya Inoue , Shoichi Kitazawa
CPC分类号： H01P7/084 , H01P1/203 , H01P1/20345 , H01P11/008 , Y10T29/435 , Y10T29/49126 , Y10T29/49128 , Y10T29/49155 , Y10T29/4916
摘要： By using a method for manufacturing a dielectric laminated device, an opening is formed on a first dielectric sheet, a strip line and an input and output line including an input and output electrode are formed by burying electrode materials in said opening, the first dielectric sheet is laminated with the second and third dielectric sheets disposed above and below respectively to form a laminate, a first and second shield electrodes and a ground electrode are formed, an end of the strip line is connected to the ground electrode, the first shield electrode and the second shield electrode are mutually connected through the ground electrode, and the input and output electrode is exposed along the line direction of the strip line. By this constitution of the above dielectric laminated device, the mounting reliability of the dielectric laminated device can be further increased.
摘要翻译： 通过使用电介质层压装置的制造方法，在第一电介质片，带状线和包括输入和输出电极的输入和输出线上形成开口，通过在所述开口中埋入电极材料形成第一电介质片 层叠有分别设置在上下的第二和第三电介质片以形成层压体，形成第一和第二屏蔽电极和接地电极，带状线的一端连接到接地电极，第一屏蔽电极和 第二屏蔽电极通过接地电极相互连接，并且输入和输出电极沿着带状线的线方向露出。 通过上述电介质层叠装置的结构，能够进一步提高电介质层叠装置的安装可靠性。
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15.发明授权Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same 有权数字式换能器，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
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。
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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。
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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。
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公开(公告)号：US6140891A
公开(公告)日：2000-10-31
申请号：US954381
申请日：1997-10-20
IPC分类号： H01P1/203
CPC分类号： H01P1/2039
摘要： A dielectric laminated filter has a first dielectric laminated block including a first strip line electrode and a second dielectric laminated block including a second strip line electrode and a coupling element, wherein the first and the second dielectric laminated blocks are laminated via a first shield electrode and wherein the first and the second strip lines are connected via a third strip line. This configuration allows the unwanted electromagnetic coupling between a resonator and the coupling element to be neglected, and uses the third strip line electrode to form the first and the second strip line electrodes so that they extend across different layers, thereby enabling the size of the resonator to be reduced. In addition, since the third strip line electrode serves to adjust the filter characteristics, a small high-performance dielectric laminated filter that can be designed easily can be provided.
摘要翻译： 电介质层压滤波器具有包括第一带状线电极的第一电介质层叠块和包括第二带状线电极和耦合元件的第二电介质层叠块，其中第一和第二电介质层叠块经由第一屏蔽电极层叠， 其中所述第一和第二带状线经由第三带状线连接。 该配置允许谐振器和耦合元件之间的不需要的电磁耦合被忽略，并且使用第三带状线电极形成第一和第二带状线电极，使得它们跨越不同的层延伸，从而使谐振器的尺寸 要减少 此外，由于第三带状线电极用于调节滤波器特性，因此可以提供容易设计的小型高性能介质层压滤波器。
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公开(公告)号：US5986522A
公开(公告)日：1999-11-16
申请号：US588769
申请日：1996-01-19
申请人： Yasuteru Asakawa , Toshio Ishizaki , Tomoki Uwano , Osamu Kawasaki , Yukihiko Ise , Toru Yamada , Hiroaki Kosugi
发明人： Yasuteru Asakawa , Toshio Ishizaki , Tomoki Uwano , Osamu Kawasaki , Yukihiko Ise , Toru Yamada , Hiroaki Kosugi
CPC分类号： H03H9/6483 , H03H3/04 , H03H9/02118 , H03H9/1014 , H03H9/1035 , H03H9/581 , H03H9/605 , Y10T29/42
摘要： A piezoelectric filter is one not changing in the holding position of resonator in spite of impulse, small in the number of parts, easy to assemble from one direction, small, thin, and stable in characteristic. For example, as shown in FIG. 7, on electrode patterns on a package 10 forming wiring electrode patterns 11, holding protrusions 13 for holding resonators, and partition boards 14 for positioning resonators, a rectangular plate type piezoelectric resonators 12 are adhered with conductive adhesive. The rectangular plate type piezoelectric resonators 12 and the package 10 are adhered and reinforced from above with a vibration absorbing member 15, and wiring is formed from above the resonators by a wire bonding 16, thereby wiring resonators in a ladder form. Or, as shown in FIG. 11, after forming electrode patterns 102 on a piezoelectric substrate 101, a rectangular plate resonator 104 is cut out from a piezoelectric substrate 101 by laser in a shape consecutive to the piezoelectric substrate 101 by the node of length expander mode, and the piezoelectric substrate 101 is enclosed by a spacer 106 and a sheet 107 from above and beneath.
摘要翻译： 压电滤波器是谐振器的保持位置不变的部分，部件数量少，易于从一个方向组装，小，薄，稳定的特性。 例如，如图1所示。 如图7所示，在形成布线电极图案11的保持用谐振器用保持突起13的封装体10上的电极图形和用于定位谐振器的分隔板14上，用导电性粘合剂粘合矩形板状压电谐振器12。 矩形板型压电谐振器12和封装10从上方用振动吸收构件15粘接和加强，并且通过引线接合16从谐振器的上方形成布线，从而以梯形形式布线谐振器。 或者，如图1所示。 如图11所示，在压电基板101上形成电极图案102之后，通过长度扩展器模式的节点以与压电基板101连续的形状的激光从压电基板101切出矩形板谐振器104，并且压电基板101 被隔板106和片材107从上方和下方包围。
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20.发明授权公开(公告)号：US06975841B2
公开(公告)日：2005-12-13
申请号：US10288541
申请日：2002-11-06
申请人： Kazuhide Uriu , Toru Yamada , Toshio Ishizaki
发明人： Kazuhide Uriu , Toru Yamada , Toshio Ishizaki
CPC分类号： H04B1/0057 , H03H7/463 , H03H7/465
摘要： A diplexer capable of passing signals of a high frequency band without being attenuated over a wide frequency band, and a high-frequency switch using the diplexer are provided. The diplexer includes a low-pass filter 82 having a parallel resonant circuit formed by a first capacitor C1 and a first inductor L1 and a serial resonant circuit formed by a second capacitor C2 and a second inductor L2. With this structure, two attenuation poles are provided in the low-pass filter 82. Thus, a passband of a high-pass filter 83 can be widened.
摘要翻译： 提供能够在宽频带上衰减高频带的信号并且使用双工器的高频开关的双工器。 双工器包括具有由第一电容器C 1和第一电感器L 1形成的并联谐振电路的低通滤波器82以及由第二电容器C 2和第二电感器L 2形成的串联谐振电路。利用该结构， 两个衰减极设置在低通滤波器82中。因此，可以加宽高通滤波器83的通带。
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