公开(公告)号：US07078989B2

公开(公告)日：2006-07-18

申请号：US10682917

申请日：2003-10-14

申请人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Masanori Ueda

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H9/64 ,  H03H9/72

CPC分类号： H03H9/02685 ,  H03H9/02913 ,  H03H9/02992 ,  H03H9/643 ,  H03H9/6436 ,  H03H9/6476 ,  H03H9/6483 ,  H03H9/6489 ,  H03H9/725

摘要： A multi-mode surface acoustic wave filter device includes: a piezoelectric substrate; at least one input IDT (interdigital transducer) and at least one output IDT that are formed on the piezoelectric substrate; reflectors that are formed on the piezoelectric substrate and arranged on the external sides of the input IDT and the output IDT; an input terminal that supplies input signals to the input IDT; and an output terminal that receives output signals from the output IDT. In this multi-mode surface acoustic wave filter, the input terminal and the output terminal extend in the same direction.

摘要翻译： 一种多模式声表面波滤波器装置，包括：压电基片; 形成在所述压电基板上的至少一个输入IDT（叉指式换能器）和至少一个输出IDT; 形成在压电基板上并布置在输入IDT和输出IDT的外侧上的反射器; 输入端，其向输入IDT提供输入信号; 以及从输出IDT接收输出信号的输出端子。 在该多模式声表面波滤波器中，输入端子和输出端子沿相同方向延伸。

公开(公告)号：US06975185B2

公开(公告)日：2005-12-13

申请号：US10671783

申请日：2003-09-29

申请人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

发明人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H9/145 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/725 ,  H03H9/6483

摘要： A surface acoustic wave filter includes a series-arm resonators and parallel-arm resonators that are connected in a ladder-like structure, each having an interdigital transducer formed on a piezoelectric substrate, and at least one of the series-arm resonators having a different static capacitance from the other series-arm resonators. In this surface acoustic wave filter, at least one of the series-arm resonators except the series-arm resonator located at the first stage in the ladder-like structure has a lower average resonant frequency than the other series-arm resonators.

摘要翻译： 表面声波滤波器包括串联臂谐振器和并联臂谐振器，其以阶梯状结构连接，每个具有形成在压电基板上的叉指式换能器，并且串联臂谐振器中的至少一个具有不同的 来自其他串联臂谐振器的静态电容。 在该声表面波滤波器中，位于阶梯状结构中的第一级的串联臂谐振器以外的串联臂谐振器中的至少一个具有比其他串联臂谐振器更低的平均谐振频率。

公开(公告)号：US06903626B2

公开(公告)日：2005-06-07

申请号：US10315945

申请日：2002-12-11

申请人： Jun Tsutsumi ,  Masahiko Imai ,  Shogo Inoue ,  Takashi Matsuda

发明人： Jun Tsutsumi ,  Masahiko Imai ,  Shogo Inoue ,  Takashi Matsuda

IPC分类号： H03H9/25 ,  H03H9/02 ,  H03H9/145 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/6483 ,  H03H9/02559

摘要： A surface acoustic wave element includes surface acoustic wave (SAW) resonators arranged in a ladder formation on a piezoelectric substrate. A resonance frequency fS1 of a series-arm resonator of a first stage viewed from an input side of the surface acoustic wave element and an average resonance frequency fSav of all of remaining series-arm SAW resonators satisfy 1.00fSav>fS1≧0.99fSav.

摘要翻译： 表面声波元件包括以压电基片上的梯子形式布置的表面声波（SAW）谐振器。 从表面声波元件的输入侧观察的第一级的串联臂谐振器的谐振频率f S1 S1和所有的平均谐振频率f S Sav 剩余的串联臂式SAW谐振器满足1.00f≤Sm = 0.99f Sav。

公开(公告)号：US06552632B2

公开(公告)日：2003-04-22

申请号：US09940888

申请日：2001-08-29

申请人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

IPC分类号： H03H964

CPC分类号： H03H9/25 ,  H03H9/14526 ,  H03H9/6483

摘要： A surface acoustic wave resonator including at least one interdigital transducer formed on a piezoelectric substrate, wherein the at least one interdigital transducer includes a predetermined number of interdigitated electrode fingers, at least two electrode fingers among the interdigitated electrode fingers are withdrawn, and the positions of the withdrawal electrode fingers are aperiodic.

摘要翻译： 一种表面声波谐振器，其包括形成在压电基板上的至少一个叉指式换能器，其中所述至少一个叉指式换能器包括预定数量的交叉指状电极指，所述交叉指电极指中的至少两个电极指被取出， 取出电极指非周期性。

公开(公告)号：US06597261B2

公开(公告)日：2003-07-22

申请号：US09819764

申请日：2001-03-29

申请人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Osamu Ikata

发明人： Jun Tsutsumi ,  Shogo Inoue ,  Takashi Matsuda ,  Osamu Ikata

IPC分类号： H03H964

CPC分类号： H03H9/14552 ,  H03H9/6483

摘要： A surface acoustic wave filter has, on a piezoelectric substrate, surface acoustic wave resonators each composed of an interdigital transducer and reflectors disposed on both sides of the interdigital transducer. The surface acoustic wave resonators are arranged in series arms and in parallel arms to be connected in a ladder form. At least one of the surface acoustic wave resonators is replaced with an interdigital transducer that does not involve resonance in a propagation direction of a surface acoustic wave.

摘要翻译： 表面声波滤波器在压电基板上具有各自由叉指换能器和布置在叉指式换能器两侧的反射器构成的表面声波谐振器。 表面声波谐振器以串联臂和并联臂布置成梯形连接。 表面声波谐振器中的至少一个被替换为不涉及在声表面波的传播方向上的共振的叉指式换能器。

公开(公告)号：US08093960B2

公开(公告)日：2012-01-10

申请号：US12411871

申请日：2009-03-26

申请人： Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

发明人： Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda

IPC分类号： H03H9/70 ,  H03H9/72 ,  H03H9/54 ,  H03H9/64

CPC分类号： H03H9/725 ,  H03H2250/00

摘要： A filter has a filter section that is provided with a balanced input terminal including a terminal 1 and a terminal 2 and a balanced output terminal including a terminal 3 and a terminal 4, and that passes a signal in a passband out of input balanced signals, and a balanced-to-unbalanced converter that is connected between the filter section and a single terminal. In the filter section, the frequency transfer characteristics between the terminals 1 and 3 differ from the frequency transfer characteristics between the terminals 2 and 4.

摘要翻译： 滤波器具有滤波器部分，其设置有包括端子1和端子2的平衡输入端子和包括端子3和端子4的平衡输出端子，并且使通过输出平衡信号的通带中的信号， 以及连接在过滤器部分和单个端子之间的平衡 - 不平衡转换器。 在滤波器部分中，端子1和3之间的频率传递特性与端子2和端子4之间的频率传递特性不同。

公开(公告)号：US20080074212A1

公开(公告)日：2008-03-27

申请号：US11902800

申请日：2007-09-25

申请人： Satoru Matsuda ,  Michio Miura ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

发明人： Satoru Matsuda ,  Michio Miura ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

IPC分类号： H03H9/64 ,  H03H9/25

CPC分类号： H03H9/02559 ,  H03H9/0222 ,  H03H9/02574 ,  H03H9/6459 ,  H03H9/6469 ,  H03H9/6483

摘要： A filter includes a parallel resonator having first comb electrodes provided on a piezoelectric substrate and a first dielectric film that covers the first comb electrodes, and a series resonator having second comb electrodes provided on the piezoelectric substrate and a second dielectric film covers the second comb electrodes and is made of a material identical to that of the first dielectric film. The first dielectric film has a different thickness from that of the second dielectric film.

摘要翻译： 滤波器包括并联谐振器，其具有设置在压电基板上的第一梳状电极和覆盖第一梳状电极的第一电介质膜，以及设置在压电基板上的具有第二梳状电极的串联谐振器，第二电介质膜覆盖第二梳状电极 并且由与第一电介质膜相同的材料制成。 第一电介质膜的厚度与第二电介质膜的厚度不同。

公开(公告)号：US06946931B2

公开(公告)日：2005-09-20

申请号：US10316089

申请日：2002-12-11

申请人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

发明人： Shogo Inoue ,  Jun Tsutsumi ,  Takashi Matsuda ,  Osamu Ikata

IPC分类号： H03H9/145 ,  H03H9/64 ,  H03H9/25

CPC分类号： H03H9/6436 ,  H03H9/14547 ,  H03H9/14567 ,  H03H9/1457 ,  H03H9/6483

摘要： A surface acoustic wave resonator includes a piezoelectric substrate, and a SAW resonator having an interdigital transducer. The interdigital transducer satisfies 0.15L≦W≦0.45L where W is the total of widths of all electrode fingers that form the interdigital transducer, and L is a length of the said interdigital transducer in a direction of SAW propagation.

摘要翻译： 声表面波谐振器包括压电基片和具有叉指式换能器的SAW谐振器。 叉指换能器满足0.15L <= W <= 0.45L，其中W是形成叉指换能器的所有电极指的总宽度，L是所述叉指换能器在SAW传播方向上的长度。

公开(公告)号：US07741931B2

公开(公告)日：2010-06-22

申请号：US11902800

申请日：2007-09-25

申请人： Satoru Matsuda ,  Michio Miura ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

发明人： Satoru Matsuda ,  Michio Miura ,  Shogo Inoue ,  Takashi Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

IPC分类号： H03H9/72 ,  H03H9/64

CPC分类号： H03H9/02559 ,  H03H9/0222 ,  H03H9/02574 ,  H03H9/6459 ,  H03H9/6469 ,  H03H9/6483

摘要： A filter includes a parallel resonator having first comb electrodes provided on a piezoelectric substrate and a first dielectric film that covers the first comb electrodes, and a series resonator having second comb electrodes provided on the piezoelectric substrate and a second dielectric film covers the second comb electrodes and is made of a material identical to that of the first dielectric film. The first dielectric film has a different thickness from that of the second dielectric film.

摘要翻译： 滤波器包括并联谐振器，其具有设置在压电基板上的第一梳状电极和覆盖第一梳状电极的第一电介质膜，以及设置在压电基板上的具有第二梳状电极的串联谐振器，第二电介质膜覆盖第二梳状电极 并且由与第一电介质膜相同的材料制成。 第一电介质膜的厚度与第二电介质膜的厚度不同。

公开(公告)号：US07659653B2

公开(公告)日：2010-02-09

申请号：US11902184

申请日：2007-09-19

申请人： Takashi Matsuda ,  Shogo Inoue ,  Michio Miura ,  Satoru Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

发明人： Takashi Matsuda ,  Shogo Inoue ,  Michio Miura ,  Satoru Matsuda ,  Masanori Ueda ,  Seiichi Mitobe

IPC分类号： H03H9/145 ,  H01L41/08

CPC分类号： H03H9/02559 ,  H03H9/0057 ,  H03H9/02574 ,  H03H9/02929 ,  H03H9/14538 ,  H03H9/6469

摘要： An acoustic wave device includes a piezoelectric substrate, a first dielectric film formed on the piezoelectric substrate, and electrodes that are provided on the first dielectric film and excite an acoustic wave, the electrodes including electrode fingers. At least a part of the first dielectric film is cut out between adjacent electrode fingers among the electrode fingers.

摘要翻译： 声波装置包括压电基板，形成在压电基板上的第一电介质膜，以及设置在第一电介质膜上并激发声波的电极，电极包括电极指。 在电极指中相邻的电极指之间切出第一电介质膜的至少一部分。