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1. 发明授权

US08525621B2 Boundary acoustic wave filter 有权
标题翻译：边界声波滤波器
公开(公告)号：US08525621B2
公开(公告)日：2013-09-03
申请号：US12398237
申请日：2009-03-05
申请人： Takashi Yamane , Masaru Yata
发明人： Takashi Yamane , Masaru Yata
IPC分类号： H03H9/46 , H03H9/64
CPC分类号： H03H9/0222 , H03H9/0038 , H03H9/0071 , H03H9/0085 , H03H9/14582 , H03H9/14588
摘要： A boundary acoustic wave filter device includes an electrode structure provided at a boundary between a piezoelectric body and a dielectric body laminated on the piezoelectric body and utilizes an SH-type boundary acoustic wave that propagates along the boundary. In the boundary acoustic wave filter device, the electrode structure includes a longitudinally coupled resonator boundary acoustic wave filter portion that has a first IDT and second and third IDTs arranged respectively on both sides of the IDT in a direction in which the boundary acoustic wave propagates. At portions at which two IDTs are located adjacent to each other in the direction in which the boundary acoustic wave propagates, narrow pitch electrode finger portions are provided in the IDTs, and the pitch of the electrode fingers of the narrow pitch electrode finger portion is different from the pitch of the electrode fingers of each of the narrow pitch electrode finger portions.
摘要翻译：一种边界声波滤波器装置，包括设置在压电体和层叠在压电体上的电介质体之间的边界处的电极结构，利用沿边界传播的SH型边界声波。在边界声波滤波器装置中，电极结构包括纵向耦合的谐振器边界弹性波滤波器部分，其具有在边界声波传播的方向上分别布置在IDT的两侧上的第一IDT和第二和第三IDT。在两个IDT彼此相邻的部分，在声波传播的方向上，在IDT中设置窄间距电极指部分，窄间距电极指部分的电极指的间距不同从每个窄间距电极指部分的电极指的间距开始。

2. 发明授权

US08289107B2 Acoustic wave device having narrower-pitch electrodes, normally-shaped electrodes and apodized electrodes 有权
标题翻译：具有窄节距电极，常规电极和变迹电极的声波装置
公开(公告)号：US08289107B2
公开(公告)日：2012-10-16
申请号：US12778252
申请日：2010-05-12
申请人： Takao Mukai , Daisuke Ajima , Masaru Yata
发明人： Takao Mukai , Daisuke Ajima , Masaru Yata
IPC分类号： H03H9/25 , H03H9/64
CPC分类号： H03H9/6436 , H03H9/0071 , H03H9/0222 , H03H9/14582
摘要： A longitudinally-coupled resonator-type acoustic wave device includes first to third IDT electrodes disposed on a piezoelectric material and first and second reflectors disposed in acoustic wave propagation directions. Each of any two IDT electrodes adjacent to each other in the acoustic wave propagation directions, of the first to third IDT electrodes, has a narrower-pitch electrode finger portion at an edge thereof adjacent to the other IDT electrode. Most portions of the first to third IDT electrodes are apodized, and the narrower-pitch electrode finger portions and the electrode finger portions adjacent thereto are normally shaped.
摘要翻译：纵向耦合的谐振器型声波器件包括设置在压电材料上的第一至第三IDT电极和布置在声波传播方向上的第一和第二反射器。在第一至第三IDT电极的声波传播方向上彼此相邻的任何两个IDT电极中的每一个在与其它IDT电极相邻的边缘处具有窄间距电极指部。第一至第三IDT电极的大多数部分被变迹，并且与其相邻的较窄节距电极指部分和电极指部分通常成形。

3. 发明授权

US07330089B2 Balanced acoustic wave filter device 有权
标题翻译：平衡声波滤波装置
公开(公告)号：US07330089B2
公开(公告)日：2008-02-12
申请号：US11672241
申请日：2007-02-07
申请人： Masaru Yata
发明人： Masaru Yata
IPC分类号： H03H9/64
CPC分类号： H03H9/0085 , H03H9/0071 , H03H9/0222 , H03H9/02748 , H03H9/14582 , H03H9/25 , H03H9/6476
摘要： In a balanced acoustic wave filter device, first and second acoustic wave filter sections that are connected in parallel to an unbalanced terminal are connected to first and second balanced terminals, respectively. The first and second surface acoustic wave filter sections are configured such that the phases of the first and second balanced terminals differ by 180 degrees. The first and second acoustic wave filter sections 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 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 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：在平衡声波滤波器装置中，与不平衡端子并联连接的第一和第二声波滤波器部分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被配置成使得第一和第二平衡端子的相位相差180度。第一和第二声波滤波器部分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IDT。第二声波滤波器部分中的IDT的电极指对的总数彼此相邻的区域中彼此相邻的电极指的极性彼此相对大，第一声波滤波器部分中的IDT的电极指的对的总数，其中在声波传播的方向上IDT彼此相邻的区域中彼此相邻的电极指的极性彼此相等。

4. 发明授权

US06771145B2 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US06771145B2
公开(公告)日：2004-08-03
申请号：US10230038
申请日：2002-08-29
申请人： Minefumi Ouchi , Masaru Yata
发明人： Minefumi Ouchi , Masaru Yata
IPC分类号： H03H900
CPC分类号： H03H9/6436 , H03H9/0038 , H03H9/0071 , H03H9/008 , H03H9/0085 , H03H9/14582
摘要： A longitudinally coupled resonator type surface acoustic wave element including three interdigital electrode portions is disposed on a piezoelectric substrate. The surface acoustic wave device is constructed so that balance-unbalance conversion can be carried out by using two surface acoustic wave elements, and the input/output impedances are different from each other by about four times. The interdigital pitches in the surface acoustic wave elements are set so as to be different from each other. Alternatively, one-terminal-pair surface acoustic wave resonators are connected in series with at least ones of the input and output sides of the surface acoustic wave elements, the interdigital electrode finger pitches of the one-terminal-pair surface acoustic wave resonators provided on the right and left sides are set to be different from each other.
摘要翻译：包括三个交指电极部分的纵向耦合谐振器型表面声波元件设置在压电基片上。声表面波装置的构造使得可以通过使用两个表面声波元件进行平衡不平衡转换，并且输入/输出阻抗彼此相差约四倍。表面声波元件中的叉指间距被设定为彼此不同。或者，单端对声表面波谐振器与表面声波元件的输入和输出侧的至少一个串联连接，设置在单端对声表面波谐振器的叉指电极指间距右侧和左侧设置为彼此不同。

5. 发明授权

US07728699B2 Acoustic wave filter 有权
标题翻译：声波滤波器
公开(公告)号：US07728699B2
公开(公告)日：2010-06-01
申请号：US12359424
申请日：2009-01-26
申请人： Yasuhisa Fujii , Masaru Yata
发明人： Yasuhisa Fujii , Masaru Yata
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/6436 , H03H9/1452
摘要： A longitudinally coupled resonator acoustic wave filter device that utilizes an inter-IDT resonance mode with a reduced insertion loss has a structure in which apodization weights are assigned in first to third IDTs having narrow pitch electrode finger portions in portions other than the narrow pitch electrode finger portions, such that the electrode finger overlap width sequentially varies in an acoustic wave propagating direction in which an acoustic wave propagates, and portions of the IDTs located at ends adjacent to the narrow pitch electrode finger portions have a maximum electrode finger overlap width.
摘要翻译：利用具有减小的插入损耗的IDT间谐振模式的纵向耦合谐振器声波滤波器装置具有这样的结构，其中，在窄间距电极指之外的部分中，在具有窄间距电极指部分的第一至第三IDT中分配变迹权重使得电极指重叠宽度在声波传播的声波传播方向上顺序变化，并且位于与窄间距电极指部相邻的端部处的IDT的部分具有最大电极指重叠宽度。

6. 发明授权

US07042313B2 Surface acoustic wave device and communication device using the same 有权
标题翻译：表面声波装置及使用其的通信装置
公开(公告)号：US07042313B2
公开(公告)日：2006-05-09
申请号：US10343715
申请日：2002-06-20
申请人： Masaru Yata
发明人： Masaru Yata
IPC分类号： H03H9/64 , H03H9/72
CPC分类号： H03H9/0038 , H03H9/0028 , H03H9/0071 , H03H9/14582 , H03H9/6436
摘要： Two or more comb-shaped electrode portions (11, 12, 13, 21, 22, and 23) are provided on a piezoelectric substrate (60) so as to have a balanced-to-unbalanced conversion function. At least one of the adjacent electrode fingers at the boundaries of adjacent comb-shaped electrode portions (11, 12, 13, 21, 22, and 23) is connected to one of an unbalanced terminal (5) and balanced terminals (6 and 7).
摘要翻译：在压电基板（60）上设置有两个以上的梳状电极部（11,12,13,21,22,23），以具有平衡不平衡的转换功能。相邻梳状电极部分（11,12,13,21,22,23）的边界处的相邻电极指中的至少一个连接到不平衡端子（5）和平衡端子（6和7）之一）。

7. 发明授权

US06967427B2 Surface acoustic wave device and communication apparatus incorporating the same 有权
标题翻译：表面声波装置及其结合的通信装置
公开(公告)号：US06967427B2
公开(公告)日：2005-11-22
申请号：US10389909
申请日：2003-03-18
申请人： Masaru Yata
发明人： Masaru Yata
IPC分类号： H03H9/00 , H03H9/64 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0071 , H03H9/0042 , H03H9/0085 , H03H9/14582 , H03H9/6433
摘要： A surface acoustic wave filter device includes balanced signal terminals, and surface acoustic wave filters respectively connected to the balanced signal terminals, and at least one surface acoustic wave resonator connected between at least one of the balanced signal terminals and a ground terminal.
摘要翻译：表面声波滤波器装置包括平衡信号端子和分别连接到平衡信号端子的表面声波滤波器以及连接在至少一个平衡信号端子和接地端子之间的至少一个声表面波谐振器。

8. 发明授权

US07800460B2 Elastic wave filter device and duplexer 有权
标题翻译：弹性波滤波器和双工器
公开(公告)号：US07800460B2
公开(公告)日：2010-09-21
申请号：US12242983
申请日：2008-10-01
申请人： Yuichi Takamine , Masaru Yata , Yasuhisa Fujii
发明人： Yuichi Takamine , Masaru Yata , Yasuhisa Fujii
IPC分类号： H03H9/72 , H03H9/64
CPC分类号： H03H9/0071 , H03H9/02748 , H03H9/14588 , H03H9/725
摘要： An elastic wave filter device includes first and second elastic wave filter units connected to an unbalanced terminal. The first and second elastic wave filter units include first to third IDTs and fourth to sixth IDTs, respectively. One end of the first IDT, one end of the second IDT, one end of the fourth IDT, and one end of the sixth IDT are commonly connected together and are connected to the unbalanced terminal. The second IDT and the fifth IDT are each divided into first to third sub-IDT portions in the elastic wave propagation direction, respectively. The second sub-IDT portions of the second and fifth IDTs are connected to first and second balanced terminals, respectively.
摘要翻译：弹性波滤波器装置包括连接到不平衡端子的第一和第二弹性波滤波器单元。第一和第二弹性波滤波器单元分别包括第一至第三IDT和第四至第六IDT。第一IDT的一端，第二IDT的一端，第四IDT的一端和第六IDT的一端共同连接在一起，并连接到不平衡终端。第二IDT和第五IDT分别在弹性波传播方向上划分成第一至第三子IDT部分。第二和第五IDT的第二子IDT部分分别连接到第一和第二平衡端子。

9. 发明授权

US07479855B2 Longitudinally-coupled-resonator-type elastic wave filter device 有权
标题翻译：纵向耦合谐振器型弹性波滤波装置
公开(公告)号：US07479855B2
公开(公告)日：2009-01-20
申请号：US12174734
申请日：2008-07-17
申请人： Masaru Yata
发明人： Masaru Yata
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/14532 , H03H9/0038 , H03H9/0071 , H03H9/0085 , H03H9/02748 , H03H9/14517 , H03H9/14579
摘要： In a longitudinally-coupled-resonator-type elastic wave filter device, at least one of two IDTs which are adjacent to each other is provided with a dummy electrode for series weighting in a portion in which the IDTs are adjacent to each other, and at least one of series-weighted portions includes at least one of metallization ratio reducing portion in a first acoustic track and metallization ratio increasing portion in a second acoustic track so as to reduce the difference between the metallization ratio of the first acoustic track passing through a connecting portion of the dummy electrode and the metallization ratio of each of second and third acoustic tracks each placed on either side of the first acoustic track in the direction of propagation of an elastic wave.
摘要翻译：在纵向耦合谐振器型弹性波滤波器装置中，彼此相邻的两个IDT中的至少一个在IDT彼此相邻的部分中设置有用于串联加权的虚拟电极，并且在串联加权部分中的至少一个包括第一声轨道中的金属化率减小部分和第二声轨道中的金属化率增加部分中的至少一个，以便减少穿过连接的第一声轨道的金属化比率虚拟电极的部分和第二和第三声道的每一个的金属化率各自放置在弹性波的传播方向上的第一声轨的任一侧上。

10. 发明授权

US07053733B2 Surface acoustic wave apparatus 有权
公开(公告)号：US07053733B2
公开(公告)日：2006-05-30
申请号：US10271777
申请日：2002-10-17
申请人： Masaru Yata , Yoichi Sawada
发明人： Masaru Yata , Yoichi Sawada
IPC分类号： H03B9/64
CPC分类号： H03H9/0061
摘要： A surface acoustic wave apparatus includes a piezoelectric substrate mounting a surface acoustic wave filter having a plurality of comb-like electrode sections, and another surface acoustic wave filter also having a plurality of comb-like electrode sections, in a manner such that a balun function is obtained. Further, a wiring pattern is provided on the piezoelectric substrate for a connecting reference terminal side electrode of a comb-like electrode section with a reference terminal side electrode of another comb-like electrode section. Moreover, another wiring pattern is provided on the piezoelectric substrate for connecting a reference terminal side electrode of a further comb-like electrode section with a reference terminal side electrode of a still further comb-like electrode section.

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