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11. 发明授权

US06559739B2 String weighted surface acoustic wave transducer 有权
标题翻译：弦加权声表面波换能器
公开(公告)号：US06559739B2
公开(公告)日：2003-05-06
申请号：US09972022
申请日：2001-10-05
申请人： Leland P. Solie
发明人： Leland P. Solie
IPC分类号： H03H9145
CPC分类号： H03H9/02724 , H03H9/02755 , H03H9/14517 , H03H9/14526 , H03H9/14547 , H03H9/14552
摘要： Surface-acoustic-wave transducers include interdigital electrode fingers alternately connected to hot and ground bus bars. The gap between two adjacent electrodes has a relative tap weight proportional to the voltage difference between the two electrodes. A set of subtransducers connected in series, a string, has two ends that are connected to the major bus bars; several strings are connectable to a single pair of major bus bars. In string weighting a plurality of strings make up the number of different tap weights within the transducer. Here every subtransducer is preferably of minimal length, for example, nominally one wavelength. Since the full bus bar voltage is divided equally between the N subtransducers, the voltage at each tap is 1/N, and the length of the string is nominally N+1 wavelengths. Therefore, for a length of the transducer all taps have the same tap weight within each string.
摘要翻译：表面声波传感器包括交叉连接到热和接地母线的交叉指状电极指。两个相邻电极之间的间隙具有与两个电极之间的电压差成比例的相对抽头重量。串联连接的一组子传感器，一个串，具有连接到主要母线的两端; 几条线可连接到一对主母线上。在弦加权中，多个弦组成换能器内不同抽头权重的数量。这里，每个子传感器优选地具有最小的长度，例如，名义上一个波长。由于在N个子传感器之间平均分配全母线电压，所以每个抽头的电压为1 / N，串的长度通常为N + 1个波长。因此，对于传感器的长度，所有抽头在每个串中具有相同的抽头重量。

12. 发明授权

US11848663B2 Resonant cavity surface acoustic wave (SAW) filters 有权
公开(公告)号：US11848663B2
公开(公告)日：2023-12-19
申请号：US17263880
申请日：2019-07-25
申请人： FREC'N'SYS
发明人： Sylvain Ballandras , Thierry LaRoche
IPC分类号： H03H9/64 , H03H9/02
CPC分类号： H03H9/6483 , H03H9/02669 , H03H9/02724 , H03H9/02771 , H03H9/02905 , H03H9/6489
摘要： A coupled cavity filter structure that uses a surface acoustic wave, in particular, a guided surface acoustic wave, comprises an acoustic wave propagating substrate, at least one input transducer structure and one output transducer structure, provided over the substrate, each comprising inter-digitated comb electrodes, at least one reflecting structure comprising at least one or more metallic strips positioned at a distance and in between the input and output transducer structures, in the direction of propagation of an acoustic wave. The acoustic wave propagating substrate is a composite substrate comprising a base substrate and a piezoelectric layer. In additional embodiments, a coupled cavity filter structure comprises a groove. In additional embodiments, a SAW ladder filter device comprises at least two coupled cavity filter structures as described herein, wherein the at least two coupled cavity filter structures are positioned on a single line.

13. 发明授权

US08253302B2 Surface acoustic wave element, method of producing the same, and method of changing resonation frequency of the same 失效
标题翻译：表面声波元件及其制造方法以及改变其谐振频率的方法
公开(公告)号：US08253302B2
公开(公告)日：2012-08-28
申请号：US12656523
申请日：2010-02-02
申请人： Kazuki Arakawa , Kazuhiko Kano , Shingo Jinno
发明人： Kazuki Arakawa , Kazuhiko Kano , Shingo Jinno
IPC分类号： H01L41/08 , H03H9/25
CPC分类号： H03H9/02645 , H03H9/02685 , H03H9/02708 , H03H9/02724 , H03H9/02748 , H03H9/02803
摘要： A surface acoustic wave element includes a piezoelectric member, a comb-teeth electrode, and a reflector. The comb-teeth electrode is arranged on the piezoelectric member. The reflector is arranged on the piezoelectric member. The reflector reflects a surface acoustic wave transmitted from the comb-teeth electrode. The reflector has a plurality of areas, and each of the areas has a frequency to make a reflection efficiency the largest. At least two of the frequencies of the areas are made different from each other.
摘要翻译：表面声波元件包括压电元件，梳齿电极和反射器。梳齿电极配置在压电元件上。反射器设置在压电元件上。反射器反射从梳齿电极传播的表面声波。反射器具有多个区域，并且每个区域具有使反射效率最大的频率。这些区域的至少两个频率彼此不同。

14. 发明申请

US20030067370A1 String weighted surface-acoustic-wave transducer 有权
标题翻译：弦加权表面声波换能器
公开(公告)号：US20030067370A1
公开(公告)日：2003-04-10
申请号：US09972022
申请日：2001-10-05
发明人： Leland P. Solie
IPC分类号： H03H009/64
CPC分类号： H03H9/02724 , H03H9/02755 , H03H9/14517 , H03H9/14526 , H03H9/14547 , H03H9/14552
摘要： Surface-acoustic-wave transducers include interdigital electrode fingers alternately connected to hot and ground bus bars. The gap between two adjacent electrodes has a relative tap weight proportional to the voltage difference between the two electrodes. A set of subtransducers connected in series, a string, has two ends that are connected to the major bus bars; several strings are connectable to a single pair of major bus bars. In string weighting a plurality of strings make up the number of different tap weights within the transducer. Here every subtransducer is preferably of minimal length, for example, nominally one wavelength. Since the full bus bar voltage is divided equally between the N subtransducers, the voltage at each tap is 1/N, and the length of the string is nominally Nnull1 wavelengths. Therefore, for a length of the transducer all taps have the same tap weight within each string.
摘要翻译：表面声波传感器包括交叉连接到热和接地母线的交叉指状电极指。两个相邻电极之间的间隙具有与两个电极之间的电压差成比例的相对抽头重量。串联连接的一组子传感器，一个串，具有连接到主要母线的两端; 几条线可连接到一对主母线上。在弦加权中，多个弦组成换能器内不同抽头权重的数量。这里，每个子传感器优选地具有最小的长度，例如，名义上一个波长。由于在N个子传感器之间平均分配全母线电压，所以每个抽头的电压为1 / N，串的长度通常为N + 1个波长。因此，对于传感器的长度，所有抽头在每个串中具有相同的抽头重量。

15. 发明申请

WO2005088834A1 １ポート弾性表面波共振子装置审中-公开
标题翻译：单端口表面声学谐振器
公开(公告)号：WO2005088834A1
公开(公告)日：2005-09-22
申请号：PCT/JP2005/002029
申请日：2005-02-10
申请人：株式会社村田製作所 , 米田年麿
发明人：米田年麿
IPC分类号： H03H9/145
CPC分类号： H03H9/02992 , H03H9/02724 , H03H9/145
摘要：　方向性（極性）を生じることなく小型化することができる１ポート弾性表面波共振子装置を提供する。　一方の反射器３６のバスバー５０は、電極指４２，４３及び反射電極５２，５３に関して一方側の反射電極５２の端部５４から離れて反射電極５２間を接続する。他方の反射器３７のバスバー５１は、電極指４２，４３及び反射電極５２，５３に関して他方側の反射電極５３の端部５５から離れて反射電極５３間を接続する。一方のパッド４７は、電極指４２，４３及び反射電極５２，５３に関して一方側に、一方の反射器３６の反射電極５２の端部５４に沿って配置される。他方のパッド４６は、電極指４２，４３及び反射電極５２，５３に関して他方側に、他方の反射器３７の反射電極５３の端部５５に沿って配置される。一対のパッド４６，４７は、圧電基板３２の片面の中心に関して略点対称に配置される。
摘要翻译：能够在不产生方向性（极性）的情况下减小尺寸的单端口表面声谐振器。一个反射器（36）的母线（50）相对于电极数字（42,43）在一侧与反射电极（52）的端部（54）分离的位置处连接反射电极（52）和反射电极（52,53）。另一反射器（37）的汇流条（51）将反射电极（53）相对于电极数（42）与反射电极（53）的另一侧的端部（55）分离的位置连接，43）和反射电极（52,53）。沿着一个反射器（36）的反射电极（52）的端部（54）的电极数（42,43）和反射电极（52,53）的一侧设置一个焊盘（47）。另一个焊盘（46）沿着另一反射器（37）的反射电极（53）的端部（55）布置在电极数（42,43）的另一侧和反射电极（52,53）。一对衬垫（46,47）相对于压电衬底（32）的一个表面的中心基本上点对称地布置。

16. 发明申请

WO2016180593A1 KASKADIERTER RESONATOR 审中-公开
标题翻译：串联谐振器
公开(公告)号：WO2016180593A1
公开(公告)日：2016-11-17
申请号：PCT/EP2016/058127
申请日：2016-04-13
申请人： EPCOS AG
发明人： BERGMANN, Andreas
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/6489 , H03H9/02724 , H03H9/145 , H03H9/1455 , H03H9/14582 , H03H9/25 , H03H9/6436 , H03H9/6483
摘要： In einem Resonator sind innerhalb einer von Reflektoren begrenzten akustischen Spur zwei Interdigitalwandler (W1,W2) in longitudinaler Richtung nebeneinander angeordnet elektrisch in Serie geschaltet. Zwischen den zwei Interdigitalwandlern ist ein Übergangsbereich (UEB) gebildet in dem die Fingerperiode p, die als Abstand zwischen den Fingermitten benachbarter Wandlerfinger definiert ist, gegenüber dem restlichen Interdigitalwandler erhöht ist.
摘要翻译：在一个谐振器的2个梳形电极（W1，W2）被布置在靠近串联电连接在有限的反射声轨迹内彼此沿纵向方向。两个叉指式换能器之间，过渡区（UEB），其中所述手指周期p，其被定义为相邻的手指传感器的手指的中心之间的距离增加相比，剩余的叉指换能形成。

17. 发明公开

US20240348234A1 RESONANT CAVITY SURFACE ACOUSTIC WAVE (SAW) FILTERS 审中-公开
公开(公告)号：US20240348234A1
公开(公告)日：2024-10-17
申请号：US18754943
申请日：2024-06-26
申请人： Soitec
发明人： Sylvain Ballandras , Thierry LaRoche
IPC分类号： H03H9/64 , H03H9/02
CPC分类号： H03H9/6483 , H03H9/02669 , H03H9/02724 , H03H9/02771 , H03H9/02905 , H03H9/6489
摘要： A coupled cavity filter structure that uses a surface acoustic wave, in particular, a guided surface acoustic wave, comprises an acoustic wave propagating substrate, at least one input transducer structure and one output transducer structure, provided over the substrate, each comprising inter-digitated comb electrodes, at least one reflecting structure comprising at least one or more metallic strips positioned at a distance and in between the input and output transducer structures, in the direction of propagation of an acoustic wave. The acoustic wave propagating substrate is a composite substrate comprising a base substrate and a piezoelectric layer. In additional embodiments, a coupled cavity filter structure comprises a groove. In additional embodiments, a SAW ladder filter device comprises at least two coupled cavity filter structures as described herein, wherein the at least two coupled cavity filter structures are positioned on a single line.

18. 发明授权

US12095449B2 Resonant cavity surface acoustic wave (SAW) filters 有权
公开(公告)号：US12095449B2
公开(公告)日：2024-09-17
申请号：US18504791
申请日：2023-11-08
申请人： Soitec
发明人： Sylvain Ballandras , Thierry LaRoche
IPC分类号： H03H9/64 , H03H9/02
CPC分类号： H03H9/6483 , H03H9/02669 , H03H9/02724 , H03H9/02771 , H03H9/02905 , H03H9/6489
摘要： A coupled cavity filter structure that uses a surface acoustic wave, in particular, a guided surface acoustic wave, comprises an acoustic wave propagating substrate, at least one input transducer structure and one output transducer structure, provided over the substrate, each comprising inter-digitated comb electrodes, at least one reflecting structure comprising at least one or more metallic strips positioned at a distance and in between the input and output transducer structures, in the direction of propagation of an acoustic wave. The acoustic wave propagating substrate is a composite substrate comprising a base substrate and a piezoelectric layer. In additional embodiments, a coupled cavity filter structure comprises a groove. In additional embodiments, a SAW ladder filter device comprises at least two coupled cavity filter structures as described herein, wherein the at least two coupled cavity filter structures are positioned on a single line.

19. 发明公开

US20240080012A1 RESONANT CAVITY SURFACE ACOUSTIC WAVE (SAW) FILTERS 审中-公开
公开(公告)号：US20240080012A1
公开(公告)日：2024-03-07
申请号：US18504791
申请日：2023-11-08
申请人： Soitec
发明人： Sylvain Ballandras , Thierry LaRoche
IPC分类号： H03H9/64 , H03H9/02
CPC分类号： H03H9/6483 , H03H9/02669 , H03H9/02724 , H03H9/02771 , H03H9/02905 , H03H9/6489
摘要： A coupled cavity filter structure that uses a surface acoustic wave, in particular, a guided surface acoustic wave, comprises an acoustic wave propagating substrate, at least one input transducer structure and one output transducer structure, provided over the substrate, each comprising inter-digitated comb electrodes, at least one reflecting structure comprising at least one or more metallic strips positioned at a distance and in between the input and output transducer structures, in the direction of propagation of an acoustic wave. The acoustic wave propagating substrate is a composite substrate comprising a base substrate and a piezoelectric layer. In additional embodiments, a coupled cavity filter structure comprises a groove. In additional embodiments, a SAW ladder filter device comprises at least two coupled cavity filter structures as described herein, wherein the at least two coupled cavity filter structures are positioned on a single line.

20. 发明申请

US20060226933A1 Surface acoustic wave filter 失效
标题翻译：表面声波滤波器
公开(公告)号：US20060226933A1
公开(公告)日：2006-10-12
申请号：US11398661
申请日：2006-04-06
申请人： Naoki Takahashi
发明人： Naoki Takahashi
IPC分类号： H03H9/64
CPC分类号： H03H9/6496 , H03H9/02724 , H03H9/14597 , H03H9/6426 , H03H9/6469
摘要： A surface acoustic wave filter (cascaded dual mode SAW filter) includes three IDT electrodes disposed adjacent to each other along the propagation direction of a surface wave on a piezoelectric substrate and two primary-tertiary longitudinally-coupled dual mode SAW fliers cascaded and constructed by arranging grating reflectors on both sides of three IDT electrodes. At least a pair of electrode fingers are thinned out from the IDT electrodes disposed outside, and floating electrodes are then disposed.
摘要翻译：表面声波滤波器（级联双模式SAW滤波器）包括沿着压电基板上的表面波的传播方向彼此相邻布置的三个IDT电极，以及通过布置来构造的两个第一三次纵向耦合的双模式SAW模式三个IDT电极两侧的光栅反射器。至少一对电极指从设置在外部的IDT电极变薄，然后布置浮动电极。

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