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1. 发明授权

US07102269B2 Surface acoustic wave device 有权
标题翻译：表面声波装置
公开(公告)号：US07102269B2
公开(公告)日：2006-09-05
申请号：US10822339
申请日：2004-04-12
申请人： Norio Watanabe
发明人： Norio Watanabe
IPC分类号： H03H9/64 , H03H9/58 , H03H9/25 , H03H9/145
CPC分类号： H03H9/6496 , H03H9/14514 , H03H9/1455 , H03H9/643 , H03H9/6476
摘要： A surface acoustic wave device includes first and second surface acoustic wave resonator filters connected in parallel to each other. The first double-mode surface acoustic wave resonator filter has resonance frequencies f1L and f1H and the second double-mode surface acoustic wave resonator filter has resonance frequencies f2L and f2H, where f1H=f2L. A Q factor of a resonance mode of one of the first and the second double-mode surface acoustic wave resonator filter is less than that of the other surface acoustic wave resonator filter, or an energy transmittance of the reflectors in at least one of the first and the second surface acoustic wave resonator filters ranges from about 12% to about 28%.
摘要翻译：表面声波装置包括彼此并联连接的第一和第二表面声波谐振器滤波器。第一双模声表面波谐振滤波器具有谐振频率f 1 L和f 1 H，第二双模声表面波谐振滤波器具有谐振频率f 2 L和f 2 H，其中f 1 H = f 2 L 第一和第二双模声表面波谐振滤波器之一的谐振模式的AQ因子小于另一声表面波谐振滤波器的谐振模式的AQ因子，或者在第一和第二双模声表面波谐振滤波器中的至少一个中的反射器的能量透射率并且第二表面声波谐振器滤波器的范围为约12％至约28％。

2. 发明授权

US4600852A Wide bandwidth withdrawal weighted surface acoustic wave filters 失效
标题翻译：宽带提取加权声表面波滤波器
公开(公告)号：US4600852A
公开(公告)日：1986-07-15
申请号：US666431
申请日：1984-10-30
申请人： Edward M. Garber
发明人： Edward M. Garber
IPC分类号： H03H9/02 , H03H9/145 , H01L41/08
CPC分类号： H03H9/1452 , H03H9/0274 , H03H9/14514 , H03H9/14552
摘要： A surface acoustic wave (SAW) filter consists of two acoustically coupled transducers built on the same piezoelectric film or substrate. The transducers are constructed by depositing a conducting comb structure having interdigitated fingers on the substrate. Spacer elements are placed between gaps of the same polarity within the comb structure. The addition of the spacer elements permit non-zero gap weights of the same sign to follow one another, in contrast to the standard structure which forces these sources to alternate in sign. This added flexibility results in new withdrawal weighted structures that significantly increase the bandwidth over which the rejection band performance is good and also reduces passband ripple. The increase in the accuracy of the withdrawal weighting permissible with these new structures improves filter performance.
摘要翻译：表面声波（SAW）滤波器由构建在同一压电薄膜或基板上的两个声耦合换能器组成。换能器通过在衬底上沉积具有交叉指状物的导电梳结构而构成。间隔元件放置在梳状结构内相同极性的间隙之间。间隔元件的添加允许相同符号的非零间隙权重彼此相关，与强制这些源在符号中交替的标准结构相反。这种增加的灵活性导致新的退出加权结构，显着增加了阻带性能良好的带宽，并且还降低了通带纹波。这些新结构允许的提取加权精度的提高提高了过滤器性能。

3. 发明授权

US4325037A Acoustic wave filter 失效
标题翻译：声波滤波器
公开(公告)号：US4325037A
公开(公告)日：1982-04-13
申请号：US127814
申请日：1980-03-06
申请人： Wolf E. Bulst , Hans Eschler
发明人： Wolf E. Bulst , Hans Eschler
IPC分类号： H03H9/42 , H03H3/08 , H03H9/02 , H03H9/145 , H03H9/25 , H03H9/64
CPC分类号： H03H9/14514 , H03H9/14505
摘要： An acoustic wave filter comprising a piezoelectric substrate body upon which at least two digital structures are formed and which comprise input and output transducers and form a selective wave reflective pair with at least one of the digital structures having a wide band amplitude characteristic F1 and at least one of the other digital structures having a narrower frequency band amplitude characteristic and wherein the center frequency f1 of the wider band F1 digital structure is displaced relative to the center frequency f2 of the digital structure which has a narrower frequency band F2 by a frequency of .DELTA..sub.f on either side of the center frequency f1 so that one of the zero locations f.sub.R1'2 of the distortion signal F.sub.R of interdigital reflections is placed close to the value of the center frequency f.sub.0 of the filter.
摘要翻译：一种声波滤波器，包括压电基板主体，在该压电基板主体上形成有至少两个数字结构，并且包括输入和输出换能器，并且形成具有宽带振幅特性F1的至少一个数字结构的选择波反射对，并且至少其他数字结构之一具有较窄的频带幅度特性，并且其中较宽频带F1数字结构的中心频率f1相对于具有较窄频带F2的数字结构的中心频率f2偏移DELTA的频率 f，使得叉指反射的失真信号FR的零位置fR1'2中的一个位置靠近滤波器的中心频率f0的值。

4. 发明申请

US20190089333A1 SAW FILTER WITH A LARGE BANDWIDTH 审中-公开
公开(公告)号：US20190089333A1
公开(公告)日：2019-03-21
申请号：US16086346
申请日：2017-04-05
申请人： SNAPTRACK, INC.
发明人： Thomas DENGLER , Thomas BAUER
IPC分类号： H03H9/64 , H03H9/00 , H03H9/145
CPC分类号： H03H9/6433 , H03H9/0052 , H03H9/0066 , H03H9/0085 , H03H9/14514
摘要： A SAW filter arrangement (FA) with a large bandwidth is specified, wherein a first filter (F1) and a second filter (F2) are connected in parallel between a first node (K1) and a second node (K2). The first filter (F1) and the second filter (F2) are both SAW filter configurations that are configured as DMS filters and both comprise two DMS tracks each, connected in series (S11, S12; S21, S22). The two filters (F1, F2) have different center frequencies and create a common passband together. The filter arrangement may comprise a serial resonator (RS) and shunting coils (L1, L2).

5. 发明申请

US20040246076A1 Surface acoustic wave arrangement for broadband signal transmission 有权
标题翻译：用于宽带信号传输的表面声波布置
公开(公告)号：US20040246076A1
公开(公告)日：2004-12-09
申请号：US10812163
申请日：2004-03-29
发明人： Andreas Bergmann
IPC分类号： H03H009/64
CPC分类号： H03H9/14532 , H03H9/02685 , H03H9/02716 , H03H9/02795 , H03H9/14505 , H03H9/14514 , H03H9/14526 , H03H9/14547 , H03H9/14552 , H03H9/14558 , H03H9/14564 , H03H9/14567 , H03H9/1457 , H03H9/14594
摘要： A surface acoustic wave arrangement has at least two interdigital transducers being provided on a piezoelectric substrate along an acoustic path, with at least one of the interdigital transducers being a fan transducer which is divided in a transverse direction into edge tracks and a center track. The acoustic wave excited in the edge tracks can be radiated either bidirectionally or unidirectionally in a predominant direction. On the other hand, the center track is formed so that the unidirectional radiation of the wave takes place in a direction opposite the predominant direction. In this manner, the signal transmission is suppressed in the frequency range corresponding to the finger period in the center track within the passband range of the transfer function. The obtained notch in the transfer function is used, for example, in receivers of terrestrial and satellite-based signals for suppressing the terrestrial signals in the satellite path of the receiver.
摘要翻译：表面声波布置具有至少两个叉指换能器，沿着声学路径设置在压电基片上，其中至少一个叉指式换能器是沿横向分成边缘轨道和中心轨道的风扇换能器。在边缘轨道中激发的声波可以在主要方向上双向或单向辐射。另一方面，形成中心轨道使得波的单向辐射沿与主要方向相反的方向发生。以这种方式，在与传送函数的通带范围内的中心轨道中的手指周期相对应的频率范围内抑制信号传输。传递函数中获得的陷波例如用于地面和卫星信号的接收机中，用于抑制接收机卫星路径中的地面信号。

6. 发明授权

US11948979B1 Heterogeneously integrated acoustoelectric amplifiers 有权
公开(公告)号：US11948979B1
公开(公告)日：2024-04-02
申请号：US17324399
申请日：2021-05-19
申请人： National Technology & Engineering Solutions of Sandia, LLC
发明人： Matt Eichenfield , Lisa Anne Plucinski Hackett
IPC分类号： H03H9/02 , H01L29/205 , H01L41/18 , H01P1/383 , H03F3/187 , H10N30/853 , H10N39/00 , H03H9/145
CPC分类号： H01L29/205 , H01P1/383 , H03F3/187 , H03H9/02574 , H10N30/8542 , H10N39/00 , H03F2200/03 , H03H9/02976 , H03H9/14514
摘要： An acoustoelectric amplifier and a number of corresponding devices are disclosed, along with methods for making the same. The acoustoelectric amplifier employs wafer-scale bonding to heterogeneously integrate an epitaxial III-V semiconductor stack and a piezoelectric layer. To increase the acoustic gain with low power dissipation, the electromechanical coupling coefficient (k2) of the piezoelectric layer should be high to increase the acoustoelectric interaction strength. The semiconductor mobility should be high to reduce the voltage required to increase the carrier drift velocity. The conductivity-thickness product should be low to prevent screening of the acoustoelectric interaction. The acoustoelectric amplifier or its corresponding material structure may be used to form circulators, isolators, oscillators, mixers, and correlators, while interconnecting waveguides may be formed of the piezoelectric layer or the semiconductor stack. An exemplary piezoelectric layer is formed of LiNbO3, while an exemplary semiconductor stack is formed of InGaAs/InP.

7. 发明申请

US20170331453A1 ARRANGEMENT COMPRISING A DMS FILTER AND A STEEP RIGHT EDGE 审中-公开
公开(公告)号：US20170331453A1
公开(公告)日：2017-11-16
申请号：US15531262
申请日：2015-10-15
申请人： SNAPTRACK, INC.
发明人： Andreas BERGMANN
IPC分类号： H03H9/145 , H03H9/72
CPC分类号： H03H9/14597 , H03H9/0038 , H03H9/14514 , H03H9/14588 , H03H9/6436 , H03H9/72
摘要： In an arrangement having a DMS filter, it is provided to symmetrically divide at least one of the transducers (W) of the DMS filter (DMS) into two sub-transducers (T,T′) electrically connected in parallel and to shift them apart from each other by an amount of at least a half wavelength. This results in the signals of the two sub-transducers canceling each other out at a frequency in a stopband and thereby generating an attenuation pole in the upper blocking region.

8. 发明授权

US06992547B2 Surface acoustic wave arrangement for broadband signal transmission 有权
标题翻译：用于宽带信号传输的表面声波布置
公开(公告)号：US06992547B2
公开(公告)日：2006-01-31
申请号：US10812163
申请日：2004-03-29
申请人： Andreas Bergmann
发明人： Andreas Bergmann
IPC分类号： H03N9/64
CPC分类号： H03H9/14532 , H03H9/02685 , H03H9/02716 , H03H9/02795 , H03H9/14505 , H03H9/14514 , H03H9/14526 , H03H9/14547 , H03H9/14552 , H03H9/14558 , H03H9/14564 , H03H9/14567 , H03H9/1457 , H03H9/14594
摘要： A surface acoustic wave arrangement has at least two interdigital transducers being provided on a piezoelectric substrate along an acoustic path, with at least one of the interdigital transducers being a fan transducer which is divided in a transverse direction into edge tracks and a center track. The acoustic wave excited in the edge tracks can be radiated either bidirectionally or unidirectionally in a predominant direction. On the other hand, the center track is formed so that the unidirectional radiation of the wave takes place in a direction opposite the predominant direction. In this manner, the signal transmission is suppressed in the frequency range corresponding to the finger period in the center track within the passband range of the transfer function. The obtained notch in the transfer function is used, for example, in receivers of terrestrial and satellite-based signals for suppressing the terrestrial signals in the satellite path of the receiver.
摘要翻译：表面声波布置具有至少两个叉指换能器，沿着声学路径设置在压电基片上，其中至少一个叉指式换能器是沿横向分成边缘轨道和中心轨道的风扇换能器。在边缘轨道中激发的声波可以在主要方向上双向或单向辐射。另一方面，形成中心轨道使得波的单向辐射沿与主要方向相反的方向发生。以这种方式，在与传送函数的通带范围内的中心轨道中的手指周期相对应的频率范围内抑制信号传输。传递函数中获得的陷波例如用于地面和卫星信号的接收机中，用于抑制接收机卫星路径中的地面信号。

9. 发明申请

US20010052737A1 Surface acoustic wave device 失效
标题翻译：表面声波装置
公开(公告)号：US20010052737A1
公开(公告)日：2001-12-20
申请号：US09871983
申请日：2001-06-04
发明人： Satoshi Ichikawa , Seiichi Mitobe
IPC分类号： H01L041/04
CPC分类号： H03H9/6433 , H03H9/14505 , H03H9/14514 , H03H9/1455 , H03H9/14552 , H03H9/14597
摘要： Transducers are connected in parallel on a piezoelectric substrate. Each of the transducers is constituted of RSPUDTS. The RSPUDTs include SPUDTs that are opposed to each other such that their propagation directions are opposite to each other. The SPUDTs have a unidirectional electrode structure having a propagation characteristic.
摘要翻译：传感器在压电基板上并联连接。每个换能器由RSPUDTS构成。 RSPUDT包括彼此相对的SPUDT，使得它们的传播方向彼此相反。 SPUDT具有传播特性的单向电极结构。

10. 发明授权

US06842090B2 Surface acoustic wave device utilizing opposite propagation direction regions and resonant mode coupling 失效
标题翻译：表面声波装置利用相反的传播方向区域和谐振模式耦合
公开(公告)号：US06842090B2
公开(公告)日：2005-01-11
申请号：US09871983
申请日：2001-06-04
申请人： Satoshi Ichikawa , Seiichi Mitobe
发明人： Satoshi Ichikawa , Seiichi Mitobe
IPC分类号： H03H9/145 , H03H9/64
CPC分类号： H03H9/6433 , H03H9/14505 , H03H9/14514 , H03H9/1455 , H03H9/14552 , H03H9/14597
摘要： Transducers are connected in parallel on a piezoelectric substrate. Each of the transducers is constituted of RSPUDTs. The RSPUDTs include SPUDTs that are opposed to each other such that their propagation directions are opposite to each other. The SPUDTs have a unidirectional electrode structure having a propagation characteristic.
摘要翻译：传感器在压电基板上并联连接。每个换能器由RSPUDT组成。 RSPUDT包括彼此相对的SPUDT，使得它们的传播方向彼此相反。 SPUDT具有传播特性的单向电极结构。

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