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1. 发明授权

US07808344B2 Boundary acoustic wave filter 有权
标题翻译：边界声波滤波器
公开(公告)号：US07808344B2
公开(公告)日：2010-10-05
申请号：US12354162
申请日：2009-01-15
申请人： Takao Mukai , Masaru Yata , Yasuhisa Fujii
发明人： Takao Mukai , Masaru Yata , Yasuhisa Fujii
IPC分类号： H03H9/64
CPC分类号： H03H9/6433 , H03H9/0028 , H03H9/0222 , H03H9/02559 , H03H9/02574 , H03H9/14594 , H03H9/6469
摘要： A longitudinally coupled resonator boundary acoustic wave filter device includes a piezoelectric substrate made of LiNbO3 having a principal plane obtained by rotating the Y-axis through about 15 degrees +−10 degrees, a dielectric substrate made of silicon oxide and laminated on the piezoelectric substrate, and an electrode structure arranged at a boundary between the piezoelectric substrate and the dielectric substrate. The electrode structure includes a plurality of IDTs arranged in a direction in which a boundary acoustic wave propagates, and reflectors, wherein where in each of the plurality of IDTs, the overlap width of electrode fingers is W and the interval of electrode fingers is P, W/P is in a range of about 20 to about 45.
摘要翻译：一种纵向耦合的谐振器边界声波滤波器装置，包括由具有通过使Y轴旋转约15度±10度而获得的主平面的LiNbO 3制成的压电基板，由氧化硅制成并层压在压电基板上的电介质基板，以及布置在所述压电基板和所述电介质基板之间的边界处的电极结构。电极结构包括沿声弹性波传播方向布置的多个IDT和反射器，其中在多个IDT中的每一个中，电极指的重叠宽度为W且电极指的间隔为P， W / P在约20至约45的范围内。

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

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。

4. 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。

5. 发明授权

US06809614B2 Surface acoustic wave device having balanced and unbalanced terminals and a delay line 有权
标题翻译：具有平衡和不平衡端子和延迟线的表面声波器件
公开(公告)号：US06809614B2
公开(公告)日：2004-10-26
申请号：US10327052
申请日：2002-12-24
申请人： Yasuhisa Fujii , Minefumi Ouchi , Masaru Yata
发明人： Yasuhisa Fujii , Minefumi Ouchi , Masaru Yata
IPC分类号： H03H964
CPC分类号： H03H9/0071 , H03H9/0085 , H03H9/14582
摘要： A surface acoustic wave device includes a first surface acoustic wave filter including at least two interdigital transducer IDTs arranged along a surface acoustic wave propagation direction on a piezoelectric substrate, and a second surface acoustic wave filter including at least two interdigital transducer IDTs arranged along the surface acoustic wave propagation direction on a piezoelectric substrate. The input terminals of the first and second surface acoustic wave filters are electrically connected to each other and to an unbalanced signal terminal via a common connection point. The output terminals of the surface acoustic wave filters are connected to balanced signal terminals, respectively. A delay line is introduced between the common connection point and the first surface acoustic wave filter on the piezoelectric substrate.
摘要翻译：表面声波装置包括：第一表面声波滤波器，包括沿着压电基板上的表面声波传播方向布置的至少两个叉指式换能器IDT，以及包括沿着表面布置的至少两个叉指式换能器IDT的第二声表面波滤波器压电基片上的声波传播方向。第一和第二声表面波滤波器的输入端经由公共连接点彼此电连接到不平衡信号端子。声表面波滤波器的输出端分别连接到平衡信号端子。在公共连接点和压电基板上的第一声表面波滤波器之间引入延迟线。

6. 发明授权

US07898145B2 Boundary acoustic wave device 有权
标题翻译：边界声波装置
公开(公告)号：US07898145B2
公开(公告)日：2011-03-01
申请号：US12409702
申请日：2009-03-24
申请人： Masakazu Mimura , Yasuhisa Fujii , Masaru Yata , Norihiko Nakahashi
发明人： Masakazu Mimura , Yasuhisa Fujii , Masaru Yata , Norihiko Nakahashi
IPC分类号： H03H9/25
CPC分类号： H03H9/0222 , H03H9/02559 , H03H9/14541
摘要： A boundary acoustic wave device includes a piezoelectric substance made of LiNbO3 having a surface obtained by rotating a Y axis by about 15°±10° as a primary surface, a dielectric substance which is made of a silicon oxide and which is laminated to the piezoelectric substance, and an electrode structure disposed at a boundary between the piezoelectric substance and the dielectric substance and which includes an IDT arranged to utilize a boundary acoustic wave propagating along the boundary. When the density of the IDT, the thickness thereof, the wavelength deter-mined by the period of electrode fingers of the IDT, and the duty ratio thereof are represented by ρ (kg/m3), H (μm), λ (μm), and x, respectively, x and the product of H/λ and ρ are set in a range that satisfies the following formula (1): (H/λ)×ρ>70.7924(x+0.055)(−2.884)+797.09 Formula (1).
摘要翻译：一种弹性边界波装置包括由具有通过使Y轴旋转大约15°±10°获得的表面的LiNbO 3制成的压电物质作为主表面，由氧化硅制成并且被压电物质，以及设置在压电体和电介质之间的边界处的电极结构，并且包括设置成利用沿边界传播的边界声波的IDT。当IDT的密度，其厚度，由IDT的电极指的周期决定的波长及其占空比由＆rgr; （kg / m3），H（μm），λ（μm）和x分别为x和H /λ与＆rgr; （H /λ）×70.7924（x + 0.055）（ - 2.884）+797.09式（1）的范围设定为满足下式（1）的范围。

7. 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。

8. 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。

9. 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。

10. 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）。

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