专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09019040B2 Elastic wave branching filter 有权
标题翻译：弹性波分支滤波器
公开(公告)号：US09019040B2
公开(公告)日：2015-04-28
申请号：US13771108
申请日：2013-02-20
申请人： Murata Manufacturing Co., Ltd.
发明人： Yuichi Takamine
IPC分类号： H03H9/72 , H03H9/64 , H03H7/46 , H03H7/42 , H03H9/00 , H03H9/02 , H03H9/145
CPC分类号： H03H7/461 , H03H7/42 , H03H9/008 , H03H9/0085 , H03H9/02748 , H03H9/02929 , H03H9/14579 , H03H9/6483 , H03H9/6496 , H03H9/725
摘要： An elastic wave surface acoustic wave duplexer includes an antenna terminal, a transmission filter, a reception filter, and a plurality of elastic wave resonators connected in series between the antenna terminal and the reception filter. The reception filter is a longitudinally coupled resonator-type surface acoustic wave filter including a plurality of IDT electrodes and arranged along a propagation direction of elastic wave. A combined capacitance of the plurality of surface acoustic wave resonators is smaller than a capacitance of the IDT electrodes and included in the plurality of IDT electrodes and connected to the antenna terminal.
摘要翻译：弹性波表面波双工器包括天线端子，发送滤波器，接收滤波器和串联连接在天线端子和接收滤波器之间的多个弹性波谐振器。接收滤波器是包括沿着弹性波的传播方向布置的多个IDT电极的纵向耦合的谐振器型表面声波滤波器。多个表面声波谐振器的组合电容小于IDT电极的电容，并且包括在多个IDT电极中并连接到天线端子。

2. 发明申请

US20130257562A1 ACOUSTIC WAVE FILTER HAVING REDUCED NON-LINEARITIES, AND METHOD FOR PRODUCTION 有权
标题翻译：具有减少非线性的声波滤波器，以及生产方法
公开(公告)号：US20130257562A1
公开(公告)日：2013-10-03
申请号：US13876474
申请日：2011-08-25
申请人： Edgar Schmidhammer
发明人： Edgar Schmidhammer
IPC分类号： H03H9/70 , H03H9/72
CPC分类号： H03H9/64 , H03H9/14517 , H03H9/1452 , H03H9/14597 , H03H9/6483 , H03H9/6496 , H03H9/725
摘要： An acoustic wave filter having reduced non-linearities as well as a production method are disclosed. A filter comprises a first electroacoustic transducer having a first metallization ratio and a second electroacoustic transducer having a second metallization ratio. The metallization ratios range from 0.2 to 0.8, and the metallization ratio of the first transducer is no more than 0.8 times the metallization ratio of the second transducer.
摘要翻译：公开了具有减小的非线性的声波滤波器以及制造方法。滤波器包括具有第一金属化率的第一电声换能器和具有第二金属化比率的第二电声换能器。金属化率范围为0.2至0.8，第一换能器的金属化率不超过第二换能器的金属化率的0.8倍。

3. 发明授权

US07772942B2 Elastic wave filter utilizing a sub-propagation mode response to increase out of band attenuation 有权
标题翻译：弹性波滤波器利用子传播模式响应来增加带外衰减
公开(公告)号：US07772942B2
公开(公告)日：2010-08-10
申请号：US12166424
申请日：2008-07-02
申请人： Hajime Kando
发明人： Hajime Kando
IPC分类号： H03H9/64
CPC分类号： H03H9/6496 , H03H9/0222 , H03H9/6469
摘要： An elastic wave filter of a resonator type includes at least one IDT electrode arranged so as to contact the piezoelectric substance. The elastic wave filter is arranged such that an elastic wave in a main propagation mode for obtaining target frequency characteristics and an elastic wave in a sub-propagation mode propagate, the elastic wave being capable of propagating simultaneously with the elastic wave in the main propagation mode, an electromechanical coefficient K2 of the elastic wave in the sub-propagation mode is in the range from about 0.1% to about one third of an electromechanical coefficient K2 of the elastic wave in the main propagation mode, and a sound velocity of the elastic wave in the sub-propagation mode differs from a sound velocity of the elastic wave in the main propagation mode.
摘要翻译：谐振器型的弹性波滤波器包括布置成与压电体接触的至少一个IDT电极。弹性波滤波器布置成使得以主传播模式获得目标频率特性的弹性波和亚传播模式中的弹性波传播，弹性波能够与主传播模式中的弹性波同时传播在副传播模式中的弹性波的机电系数K2在主传播模式中为弹性波的机电系数K2的约0.1％至约三分之一，并且弹性波的声速在副传播模式中，与主传播模式中的弹性波的声速不同。

4. 发明授权

US07482896B2 Surface acoustic wave apparatus 失效
标题翻译：表面声波装置
公开(公告)号：US07482896B2
公开(公告)日：2009-01-27
申请号：US11367555
申请日：2006-03-06
申请人： Koichi Wada , Seiichi Mitobe , Shogo Inoue
发明人： Koichi Wada , Seiichi Mitobe , Shogo Inoue
IPC分类号： H03H9/145 , H03H9/25 , H03H9/64
CPC分类号： H03H9/14532 , H03H9/02992 , H03H9/1452 , H03H9/14538 , H03H9/14547 , H03H9/6496
摘要： A surface acoustic wave apparatus has a configuration by which the spurious of the higher-order transverse modes is suppressed and a SAW excitation intensity distribution is not changed in the propagation direction. The surface acoustic wave apparatus has at least one interdigital transducer; a region with the plurality of interleaved comb-shaped electrodes is formed with two regions which are a first overlapping region and a second overlapping region with overlapping-lengths weighted along a propagation direction of a surface acoustic wave; the first overlapping region and the second overlapping region are in contact or overlapped in a direction vertical to the propagation direction of the surface acoustic wave; and in either the first or the second overlapping region, an overlapping-length weighting envelope curve has at least two or more changing points in the propagation direction of the surface acoustic wave.
摘要翻译：表面声波装置具有抑制高阶横模的杂散和SAW传播方向上的SAW激发强度分布不变化的结构。声表面波装置具有至少一个叉指式换能器; 具有多个交错梳状电极的区域形成有沿着声表面波的传播方向加权的具有重叠长度的第一重叠区域和第二重叠区域的两个区域; 第一重叠区域和第二重叠区域在与声表面波的传播方向垂直的方向上接触或重叠; 并且在第一或第二重叠区域中，重叠长度加权包络线在表面声波的传播方向上具有至少两个以上的变化点。

5. 发明授权

US07479853B2 Balanced type surface acoustic wave filter 有权
标题翻译：平衡型声表面波滤波器
公开(公告)号：US07479853B2
公开(公告)日：2009-01-20
申请号：US10595289
申请日：2005-08-09
申请人： Masakazu Tani
发明人： Masakazu Tani
IPC分类号： H03H9/64
CPC分类号： H03H9/0061 , H03H9/14517 , H03H9/1452 , H03H9/14532 , H03H9/14582 , H03H9/6473 , H03H9/6496
摘要： In a balanced type surface acoustic wave filter, a first longitudinally coupled resonator-type surface acoustic wave filter portion connected to an unbalanced input terminal and a second longitudinally coupled resonator-type surface acoustic wave filter portion connected to first and second balanced input terminals are two-stage cascade connected. In the first longitudinally coupled resonator-type surface acoustic wave filter portion, in a portion in which first and second IDTs are adjacent to each other and a portion in which second and third IDTs are adjacent to each other, weighting is performed on a plurality of electrode fingers including the outermost electrode finger closest to the adjacent IDT, in at least one of the adjacent IDTs.
摘要翻译：在平衡型表面声波滤波器中，连接到不平衡输入端子的第一纵向耦合谐振器型声表面波滤波器部分和连接到第一和第二平衡输入端子的第二纵向耦合谐振器型表面声波滤波器部分是两个级联连接。在第一纵向耦合谐振器型表面声波滤波器部分中，在第一和第二IDT彼此相邻的部分和第二和第三IDT彼此相邻的部分中，对多个电极指包括最靠近相邻IDT的最外电极指，在至少一个相邻的IDT中。

6. 发明申请

US20080258846A1 ELASTIC WAVE FILTER 有权
标题翻译：弹性波过滤器
公开(公告)号：US20080258846A1
公开(公告)日：2008-10-23
申请号：US12166424
申请日：2008-07-02
申请人： Hajime KANDO
发明人： Hajime KANDO
IPC分类号： H03H9/64
CPC分类号： H03H9/6496 , H03H9/0222 , H03H9/6469
摘要： An elastic wave filter of a resonator type includes at least one IDT electrode arranged so as to contact the piezoelectric substance. The elastic wave filter is arranged such that an elastic wave in a main propagation mode for obtaining target frequency characteristics and an elastic wave in a sub-propagation mode propagate, the elastic wave being capable of propagating simultaneously with the elastic wave in the main propagation mode, an electromechanical coefficient K2 of the elastic wave in the sub-propagation mode is in the range from about 0.1% to about one third of an electromechanical coefficient K2 of the elastic wave in the main propagation mode, and a sound velocity of the elastic wave in the sub-propagation mode differs from a sound velocity of the elastic wave in the main propagation mode.
摘要翻译：谐振器型的弹性波滤波器包括布置成与压电体接触的至少一个IDT电极。弹性波滤波器布置成使得以主传播模式获得目标频率特性的弹性波和亚传播模式中的弹性波传播，弹性波能够与主传播模式中的弹性波同时传播在亚传播模式中的弹性波的机电系数K 2 2的范围是从机械系数K 2的机电系数K 2的大约0.1％到大约3/3 主传播模式中的弹性波，并且副传播模式中的弹性波的声速与主传播模式中的弹性波的声速不同。

7. 发明授权

US07400220B2 Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US07400220B2
公开(公告)日：2008-07-15
申请号：US11065363
申请日：2005-02-25
申请人： Yasuyuki Saitou , Osamu Kawachi
发明人： Yasuyuki Saitou , Osamu Kawachi
IPC分类号： H03H9/00 , H03H9/25
CPC分类号： H03H9/6483 , H03H9/25 , H03H9/643 , H03H9/6473 , H03H9/6496
摘要： A surface acoustic wave device includes a surface acoustic wave resonator. The surface acoustic wave resonator includes comb-like electrodes and reflection electrodes provided on both sides of the comb-like electrodes, and each of the reflection electrodes has at least two different pitches. It is thus possible to suppress the ripple components.
摘要翻译：表面声波装置包括表面声波谐振器。表面声波谐振器包括梳状电极和设置在梳状电极两侧的反射电极，并且每个反射电极具有至少两个不同的间距。因此可以抑制纹波成分。

8. 发明申请

US20070052499A1 Balanced type surface acoustic wave filter 有权
标题翻译：平衡型声表面波滤波器
公开(公告)号：US20070052499A1
公开(公告)日：2007-03-08
申请号：US10595289
申请日：2005-08-09
申请人： Masakazu Tani
发明人： Masakazu Tani
IPC分类号： H03H9/64
CPC分类号： H03H9/0061 , H03H9/14517 , H03H9/1452 , H03H9/14532 , H03H9/14582 , H03H9/6473 , H03H9/6496
摘要： In a balanced type surface acoustic wave filter, a first longitudinally coupled resonator-type surface acoustic wave filter portion connected to an unbalanced input terminal and a second longitudinally coupled resonator-type surface acoustic wave filter portion connected to first and second balanced input terminals are two-stage cascade connected. In the first longitudinally coupled resonator-type surface acoustic wave filter portion, in a portion in which first and second IDTs are adjacent to each other and a portion in which second and third IDTs are adjacent to each other, weighting is performed on a plurality of electrode fingers including the outermost electrode finger closest to the adjacent IDT, in at least one of the adjacent IDTs.
摘要翻译：在平衡型表面声波滤波器中，连接到不平衡输入端子的第一纵向耦合谐振器型声表面波滤波器部分和连接到第一和第二平衡输入端子的第二纵向耦合谐振器型表面声波滤波器部分是两个级联连接。在第一纵向耦合谐振器型表面声波滤波器部分中，在第一和第二IDT彼此相邻的部分和第二和第三IDT彼此相邻的部分中，对多个电极指包括最靠近相邻IDT的最外电极指，在至少一个相邻的IDT中。

9. 发明申请

US20060158800A1 Electronic component and electronic apparatus using this electronic component 有权
标题翻译：使用该电子部件的电子部件和电子设备
公开(公告)号：US20060158800A1
公开(公告)日：2006-07-20
申请号：US10540399
申请日：2003-12-24
申请人： Ryouichi Takayama , Hidekazu Nakanishi , Takashi Inoue , Tetsuo Kawasaki , Kouji Hasegawa , Yukio Iwasaki
发明人： Ryouichi Takayama , Hidekazu Nakanishi , Takashi Inoue , Tetsuo Kawasaki , Kouji Hasegawa , Yukio Iwasaki
IPC分类号： H02H9/00
CPC分类号： H03H9/145 , H03H3/10 , H03H9/02559 , H03H9/02834 , H03H9/02929 , H03H9/02984 , H03H9/25 , H03H9/6496
摘要： The present invention relates to an electronic part, and its object is to improve temperature characteristics and electrical properties. In order to attain the object, the electronic part according to the present invention includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1≦p1 and L2≧p2 (herein, the correlations of L≈p, p1+p2=p and L1+L2=L are satisfied).
摘要翻译：电子部件技术领域本发明涉及电子部件，其目的在于提高温度特性和电气性能。为了实现该目的，根据本发明的电子部件包括基板（1），设置在基板（1）的上表面上的梳型电极（2）和保护膜（4）），其覆盖梳状电极（2），并且在其顶面具有不均匀的形状。如果保护膜（4）的凹凸形状中的一个间距的间距宽度为L，则保护膜（4）的凹凸形状的凹凸的凸部（4a）的一个节距的宽度为L 如图1所示，凹部（4b）的一个间距的宽度为L 2，梳型电极（2）的一个间距的间距宽度为p，形成梳状电极型电极（2）为p 1，电极指之间的宽度为p 2，则每个参数被设定为满足以下表达式：L 1 <= p 1和L 2> = p 2（这里，相关性 L pp，p 1 + p 2 = p，L 1 + L 2 = L）。

10. 发明授权

US06847154B2 Surface acoustic wave device and communication device 失效
标题翻译：声表面波装置及通讯装置
公开(公告)号：US06847154B2
公开(公告)日：2005-01-25
申请号：US10255968
申请日：2002-09-27
申请人： Yoshihiro Ito , Michio Kadota , Koji Fujimoto
发明人： Yoshihiro Ito , Michio Kadota , Koji Fujimoto
IPC分类号： H03H9/145 , H03H9/02 , H03H9/25 , H03H9/64
CPC分类号： H03H9/14552 , H03H9/02543 , H03H9/6496
摘要： A Shear Horizontal-type end-surface-reflection-type surface acoustic wave device includes a piezoelectric substrate having end surfaces. The most appropriate positions of the end surfaces of the piezoelectric substrate are determined. Interdigital transducers are disposed on the main surface of the piezoelectric substrate having a comparatively low relative dielectric constant ∈11T (for example, a relative dielectric constant of about 40 or less). The positions of the end surfaces are determined so that the distance from the center of the second electrode finger, counting from the outermost side in the surface acoustic wave propagation direction among the interdigital transducers, to the end surfaces (end surfaces for reflecting the surface acoustic wave) of the piezoelectric substrate satisfy the relationship (N+⅝)λs≦L≦(N+⅞)λs, where λs is the wavelength of the surface acoustic wave, and N is 0 or a positive integer.
摘要翻译：剪切水平型端面反射型表面声波装置包括具有端面的压电基板。确定压电基片的端面最合适的位置。叉指换能器设置在压电基片的相对介电常数ε11（例如相对介电常数约为40或更小）的主表面上。端面的位置被确定为使得从叉指式换能器之间的表面声波传播方向上的最外侧的第二电极指的中心到端面（用于反射表面声学的端面）（N + 5/8）lambdas <= L <=（N + 7/8）lambdas，其中lambdas是表面声波的波长，N是0或正整数。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式