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1. 发明授权

US06377139B1 Edge reflection type surface acoustic wave device with grooves or steps at the reflection edges 有权
标题翻译：边缘反射型表面声波装置，在反射边缘具有凹槽或台阶
公开(公告)号：US06377139B1
公开(公告)日：2002-04-23
申请号：US09521829
申请日：2000-03-09
申请人： Hideya Horiuchi , Michio Kadota , Junya Ago , Takao Mukai
发明人： Hideya Horiuchi , Michio Kadota , Junya Ago , Takao Mukai
IPC分类号： H03H925
CPC分类号： H03H9/6436 , H03H9/02669 , H03H9/02677 , H03H9/6433 , H03H9/6463
摘要： An edge reflection type surface acoustic wave device utilizes a Shear Horizontal type surface acoustic wave and includes a surface acoustic wave substrate, and at least two interdigital transducers provided on one main surface of the surface acoustic wave substrate. First and second grooves are formed on the opposite ends in the surface acoustic wave propagation direction of the area where the interdigital transducer is provided. The first and second grooves extend from the one main surface of the surface acoustic wave substrate toward the other main surface thereof without reaching the other main surface. The grooves extend substantially perpendicularly to the surface acoustic wave propagation direction so as to define first and second edges for reflecting the surface acoustic wave. The first and second edges are defined by the inner sideively. walls of the first and second grooves, respectively.
摘要翻译：边缘反射型声表面波装置利用剪切水平型弹性表面波，并且包括表面声波基板和设置在弹性表面波基板的一个主表面上的至少两个叉指式换能器。第一和第二槽形成在设置叉指换能器的区域的表面声波传播方向的相对端。第一和第二槽从声表面波衬底的一个主表面向另一个主表面延伸而不到达另一个主表面。凹槽基本上垂直于声表面波传播方向延伸，以便限定用于反射表面声波的第一和第二边缘。第一和第二边缘由内侧确定。第一和第二槽的壁分别。

2. 发明授权

US06297712B1 Multi-mode edge reflection saw filter device with ground electrodes between stages, duplexer, and communication device 有权
标题翻译：多模边缘反射锯过滤装置，其间有接地电极，双工器和通信装置
公开(公告)号：US06297712B1
公开(公告)日：2001-10-02
申请号：US09317071
申请日：1999-05-14
申请人： Michio Kadota , Haruo Morii , Kazuhiko Morozumi , Junya Ago , Hideya Horiuchi
发明人： Michio Kadota , Haruo Morii , Kazuhiko Morozumi , Junya Ago , Hideya Horiuchi
IPC分类号： H03H972
CPC分类号： H03H9/6433 , H03H9/02669 , H03H9/02779 , H03H9/02992 , H03H9/14538 , H03H9/6459 , H03H9/6469
摘要： A surface acoustic wave filter apparatus includes a plurality of stages of multi-mode filters defined by edge-reflection type surface acoustic wave devices and electrically connected in series with each other. The plurality of stages of multi-mode filters are provided on a common piezoelectric substrate and arranged in a direction which is substantially perpendicular to the propagation direction of surface acoustic waves. Ground electrodes are located between the stages of the plurality of stages of multi-mode filters.
摘要翻译：表面声波滤波器装置包括由边缘反射型弹性表面波器件限定并且彼此串联电连接的多级多模式滤波器级。多级滤波器的多级设置在公共压电基片上并且布置在基本上垂直于表面声波的传播方向的方向上。接地电极位于多级过滤器的多级阶段之间。

3. 发明授权

US07194793B2 Method for producing an edge reflection type surface acoustic wave device 有权
标题翻译：边缘反射型声表面波装置的制造方法
公开(公告)号：US07194793B2
公开(公告)日：2007-03-27
申请号：US10844940
申请日：2004-05-13
申请人： Michio Kadota , Yasunori Takakuwa , Seigo Hayashi , Junya Ago , Hideya Horiuchi , Mamoru Ikeura
发明人： Michio Kadota , Yasunori Takakuwa , Seigo Hayashi , Junya Ago , Hideya Horiuchi , Mamoru Ikeura
IPC分类号： H04R31/00
CPC分类号： H03H9/6483 , H03H9/02669 , H03H9/14552 , H03H9/6436 , H03H9/6463 , Y10T29/42 , Y10T29/49004 , Y10T29/49005 , Y10T29/49011 , Y10T29/4908 , Y10T29/49128 , Y10T29/4913
摘要： A method for adjusting a frequency characteristic of an edge reflection type surface acoustic wave device includes the step of obtaining a frequency characteristic of an edge reflection type surface acoustic wave device having a piezoelectric substrate. The edge reflection type surface acoustic wave device has a pair of edges of the piezoelectric substrate which define a predetermined distance therebetween. The piezoelectric substrate is cut at a position which defines a distance that is shorter than the predetermined distance when a final frequency characteristic of the edge reflection type surface acoustic wave device is to be higher than the obtained frequency characteristic. The piezoelectric substrate is cut at a position which defines a distance that is longer than the predetermined distance when a final frequency characteristic of the edge reflection type surface acoustic wave device is to be lower than the obtained frequency characteristic.
摘要翻译：用于调整边缘反射型声表面波装置的频率特性的方法包括获得具有压电基片的边缘反射型声表面波装置的频率特性的步骤。边缘反射型弹性表面波器件具有在其间限定预定距离的压电基片的一对边缘。当边缘反射型弹性表面波器件的最终频率特性要比所获得的频率特性高时，将压电基片切割成限定比预定距离短的距离的位置。当边缘反射型弹性表面波器件的最终频率特性要低于所获得的频率特性时，压电基片被切割在限定比预定距离长的距离的位置处。

4. 发明授权

US06879225B2 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US06879225B2
公开(公告)日：2005-04-12
申请号：US10610925
申请日：2003-07-01
申请人： Michio Kadota , Hideya Horiuchi , Takeshi Nakao , Yasuhiro Kuratani , Masakazu Mimura , Junya Ago
发明人： Michio Kadota , Hideya Horiuchi , Takeshi Nakao , Yasuhiro Kuratani , Masakazu Mimura , Junya Ago
IPC分类号： H03H9/145 , H03H3/10 , H03H9/02 , H03H9/25 , H03H9/64 , H03H9/15
CPC分类号： H03H9/6436 , H03H3/10 , H03H9/02559 , H03H9/02669 , H03H9/02834 , H03H9/02984 , H03H9/6433
摘要： A surface acoustic wave device includes a Y-cut, X-propagation LiTaO3 substrate, at least one interdigital transducer provided on the LiTaO3 substrate and made of Al or a metal containing Al as a major component, and an SiO2 film provided on the surface of the LiTaO3 substrate so as to cover the interdigital transducer, wherein the thickness Hs of the SiO2 film normalized by the wavelength λ of a surface acoustic wave and the cut angle θ of the LiTaO3 substrate are set to be in any one of the ranges represented by formulae (1) to (8): in the case of 0.00
摘要翻译：表面声波装置包括Y切割的X传播LiTaO 3基板，设置在LiTaO 3基板上的由Al或含有Al作为主要成分的金属制成的至少一个叉指换能器，以及设置在 LiTaO 3衬底以覆盖叉指换能器，其中由表面声波的波长λ和LiTaO 3衬底的切割角度θ归一化的SiO 2膜的厚度Hs被设定为由式（1）〜（8）：

5. 发明授权

US5914554A Surface wave resonator 失效
标题翻译：表面波谐振器
公开(公告)号：US5914554A
公开(公告)日：1999-06-22
申请号：US706303
申请日：1996-08-30
申请人： Michio Kadota , Junya Ago
发明人： Michio Kadota , Junya Ago
IPC分类号： H03H9/02 , H03H9/25 , H03H9/64 , H01L41/08
CPC分类号： H03H9/02669 , H03H9/6413
摘要： An end-face reflecting-type surface wave resonator using the SH-type surface wave achieves two types of resonance characteristics by use of only a single device. An interdigital transducer having a pair of comb-like electrodes are formed on a piezoelectric substrate having two oppositely-facing end faces. The interdigital transducer has two peaks of main lobes and are assigned with weights so that the two peaks of main lobes substantially coincide with frequency positions of attenuation poles disposed across a main lobe of a virtual normal-type interdigital transducer having the same number of pairs of electrodes as the weighted interdigital transducer. Thus, two types of resonance characteristics can be obtained.
摘要翻译：使用SH型表面波的端面反射型表面波谐振器仅通过单个器件实现两种谐振特性。具有一对梳状电极的叉指换能器形成在具有两个相对端面的压电基片上。叉指式换能器具有主瓣的两个峰值并且被赋予权重，使得主瓣的两个峰值与设置在具有相同数量的对的虚拟正交型叉指式换能器的主瓣之间的衰减极的频率位置基本一致电极作为加权叉指换能器。因此，可以获得两种类型的谐振特性。

6. 发明授权

US06784764B2 End-surface reflection type surface acoustic wave filter 有权
标题翻译：端面反射型表面声波滤波器
公开(公告)号：US06784764B2
公开(公告)日：2004-08-31
申请号：US10218017
申请日：2002-08-14
申请人： Michio Kadota , Hideya Horiuchi , Junya Ago , Takeshi Nakao , Yasuhiro Kuratani
发明人： Michio Kadota , Hideya Horiuchi , Junya Ago , Takeshi Nakao , Yasuhiro Kuratani
IPC分类号： H03H900
CPC分类号： H03H9/02984 , H03H9/02669
摘要： An end-surface reflection type surface acoustic wave filter is capable of increasing an attenuation amount outside a pass band while insertion loss characteristics are not seriously deteriorated. The filter is a longitudinally coupled resonator type surface acoustic wave filter using an SH type surface acoustic wave, which has first and second grooves formed in a piezoelectric substrate at the top surface thereof so as to be substantially parallel to each other and spaced from each other by a predetermined distance. In addition, IDTs which are provided between the grooves for defining the longitudinally coupled resonator type surface acoustic wave filter, reflection end-surfaces disposed on side surfaces of the first and the second grooves at the IDT sides, and one of a resin-coating layer and a protective layer made of SiO2, are provided on the top surface of the piezoelectric substrate. The resin-coating layer is arranged to cover at least a region at which the IDTs are located and at least one of the first and the second grooves so as to intrude into one of them, and the protective layer is arranged so as to cover the IDTs.
摘要翻译：端面反射型表面声波滤波器能够增加通带外的衰减量，而插入损耗特性不会严重恶化。滤波器是使用SH型表面声波的纵向耦合的谐振器型表面声波滤波器，其具有在其顶表面上形成在压电基片中的第一和第二凹槽，以便彼此基本平行并彼此间隔开预定距离。另外，设置在用于限定纵向耦合的谐振器型声表面波滤波器的槽之间的IDT，设置在IDT侧的第一和第二槽的侧面的反射端面以及树脂被覆层和由SiO 2制成的保护层设置在压电基板的顶表面上。树脂涂层被设置成至少覆盖IDT所在的区域和第一和第二槽中的至少一个以侵入其中的一个，并且保护层被布置成覆盖 IDT。

7. 发明授权

US06353371B1 Transversely coupled resonator type surface acoustic wave filter and longitudinally coupled resonator type surface acoustic wave filter 有权
标题翻译：横向耦合谐振器型表面声波滤波器和纵向耦合谐振器型声表面波滤波器
公开(公告)号：US06353371B1
公开(公告)日：2002-03-05
申请号：US09503542
申请日：2000-02-14
申请人： Michio Kadota , Harou Morii , Junya Ago
发明人： Michio Kadota , Harou Morii , Junya Ago
IPC分类号： H03H964
CPC分类号： H03H9/6436 , H03H9/02669 , H03H9/6463
摘要： A transversely coupled surface acoustic wave filter includes a surface acoustic wave substrate having opposing first and second end surfaces, and first and second interdigital transducers provided on the surface acoustic wave substrate. The first and second interdigital transducers define first and second surface acoustic wave resonators which use a wave including a shear horizontal wave as its main component. The first and second surface acoustic wave resonators are connected to define a transversally coupled resonator filter. The filter preferably has a relative dielectric constant E=∈s11/∈0 in the range of about 0 to about 3000 and the electromechanical coupling coefficient K is such that K2·∈s11/∈0 is in the range of about 0 to about 250. Also, the aperture length y is preferably within the range of: 0.945+5.49×exp(−E/366) ≧y≧2.46×exp(−E/219).
摘要翻译：横向耦合表面声波滤波器包括具有相对的第一和第二端面的表面声波衬底以及设置在表面声波衬底上的第一和第二叉指换能器。第一和第二叉指换能器限定使用包括剪切水平波作为其主要成分的波的第一和第二声表面波谐振器。第一和第二表面声波谐振器被连接以限定横向耦合的谐振滤波器。滤波器优选地具有在约0至约3000的范围内的相对介电常数E =∈s11 /∈0，并且机电耦合系数K使得K2.∈s11/∈0在约0至约250的范围内另外，孔径长度y优选在0.945±5.49×exp（-E / 366）> = y> = 2.46×exp（-E / 219）的范围内。

8. 发明授权

US5952899A Ladder filter having edge reflection type saw resonators 失效
标题翻译：具有边缘反射型锯形谐振器的梯形滤波器
公开(公告)号：US5952899A
公开(公告)日：1999-09-14
申请号：US76531
申请日：1998-05-12
申请人： Michio Kadota , Takeshi Nadota , Toshimaro Yoneda , Junya Ago
发明人： Michio Kadota , Takeshi Nadota , Toshimaro Yoneda , Junya Ago
IPC分类号： H03H9/02 , H03H9/25 , H03H9/64
CPC分类号： H03H9/02905 , H03H9/02669 , H03H9/6483
摘要： A ladder filter includes a plurality of series arm resonators and a plurality of parallel arm resonators. The series arm resonators are connected in series to form a series arm of a ladder circuit and are located at a first integrated region. Each series arm resonator includes an edge-reflection surface acoustic wave (SAW) resonator which has a piezoelectric material portion and a pair of edges thereof and utilizes a shear horizontal surface acoustic wave to be excited on the piezoelectric material portion. Each of the parallel arm resonators is connected in parallel between the series arm and a ground potential to form a parallel arm of a ladder circuit. Each of the parallel arm resonators includes an edge reflection SAW resonator which has a piezoelectric material portion with a pair of edges thereof and utilizes a shear horizontal surface acoustic wave to be excited on the piezoelectric material portion. The parallel arm resonators include a first group of at least two parallel arm resonators which are located at a second integrated region which is physically isolated from the first integrated region such that the shear horizontal surface acoustic wave excited on the piezoelectric material portion in the first integrated region does not interfere with the shear horizontal type surface acoustic wave excited in the second integrated region.
摘要翻译：梯形滤波器包括多个串联臂谐振器和多个并联臂谐振器。串联臂谐振器串联连接形成梯形电路的串联臂并位于第一集成区域。每个串联臂谐振器包括具有压电材料部分和一对边缘的边缘反射表面声波（SAW）谐振器，并利用剪切水平声波在压电材料部分上被激发。每个并联臂谐振器并联连接在串联臂和地电位之间，以形成梯形电路的并联臂。每个并联臂谐振器包括边缘反射SAW谐振器，该边缘反射SAW谐振器具有一个具有一对边缘的压电材料部分，并利用剪切水平声波在压电材料部分上被激发。并联臂谐振器包括：第一组至少两个并联臂谐振器，其位于与第一集成区域物理隔离的第二集成区域，使得在第一集成区域中的压电材料部分上激发的剪切水平声表面波区域不干扰在第二集成区域中激发的剪切水平型声表面波。

9. 发明授权

US5781083A Surface wave resonator having a plurality of resonance frequencies 失效
标题翻译：具有多个谐振频率的表面波谐振器
公开(公告)号：US5781083A
公开(公告)日：1998-07-14
申请号：US613074
申请日：1996-03-08
申请人： Hideya Horiuchi , Michio Kadota , Junya Ago
发明人： Hideya Horiuchi , Michio Kadota , Junya Ago
IPC分类号： H03H9/02 , H03H9/145 , H03H9/25 , H03H9/64 , H04N5/44 , H03H9/00
CPC分类号： H03H9/02669 , H03H9/1452
摘要： A free edge reflective-type surface wave resonator for reflecting SH-type surface waves between two confronting free edges of a piezoelectric substrate includes a piezoelectric substrate having two confronting free edges and an interdigital transducer having a plurality of electrode fingers which are weighted by a cross width weighting method or an electrode thinning method. The weighting of the electrode fingers is performed so that an attenuation pole of a main lobe of the weighted IDT is located outside of a frequency of an attenuation pole of a normal non-weighted IDT which has the same number of electrode finger pairs as the weighted IDT. The weighting of the electrodes is such that the main lobe of the weighted IDT and a plurality of resonance characteristics determined by the attenuation poles of the normal unweighted IDT are obtained.
摘要翻译：用于在压电基板的两个相对自由边缘之间反射SH型表面波的自由边反射型表面波谐振器包括具有两个相对自由边缘的压电基片和具有多个电极指的叉指换能器，该多个电极指由十字宽度加权法或电极稀化法。执行电极指的加权，使得加权IDT的主瓣的衰减极点位于正常非加权IDT的衰减极点的频率之外，该正常非加权IDT具有与加权的相同数量的电极指对对的频率 IDT。电极的加权使得获得加权IDT的主瓣和由正常未加权IDT的衰减极点确定的多个谐振特性。

10. 发明授权

US5684437A End face reflection type surface wave resonator 失效
标题翻译：端面反射型表面波谐振器
公开(公告)号：US5684437A
公开(公告)日：1997-11-04
申请号：US623631
申请日：1996-03-28
申请人： Junya Ago , Michio Kadota
发明人： Junya Ago , Michio Kadota
IPC分类号： H03H9/25 , H03H9/02 , H03H9/08 , H03H9/15 , H03H9/64
CPC分类号： H03H9/02669 , H03H9/02653 , H03H9/02677
摘要： An end face reflection type surface wave resonator utilizing a surface wave of an SH type is constructed by forming comb electrodes on one major surface of a piezoelectric substrate, which constitute an IDT, and forming grooves extending from one major surface to the other major surface to form a pair of end faces on which a surface wave is to be reflected the resonator having piezoelectric plate portions outside the grooves.
摘要翻译：利用SH型表面波的端面反射型表面波谐振器通过在构成IDT的压电基板的一个主表面上形成梳状电极，并且形成从一个主表面延伸到另一主表面的凹槽形成一对端面，使表面波在凹槽外侧具有压电板部分的谐振器被反射。

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