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1. 发明授权

US4257022A Magnetostrictive rod filters 失效
标题翻译：磁致伸缩棒过滤器
公开(公告)号：US4257022A
公开(公告)日：1981-03-17
申请号：US2102
申请日：1979-01-09
申请人： Rene G. Deschamps
发明人： Rene G. Deschamps
IPC分类号： H03H9/62 , H03H9/135
CPC分类号： H03H9/62
摘要： Magnetostrictive rod filter whose attenuation versus frequency curve has a resonance as the conventional magnetostrictive rod filters but also a pole at a frequency near the resonance frequency. The filter comprises a freely vibrating magnetostrictive rod, two windings symmetrically located with respect to the rod center and surrounding the rod, ferrimagnetic material sheaths surrounding the windings except on the parts thereof facing the rod and means for applying a d.c. magnetic field to the rod. The pole of the attenuation curve is due to a demagnetizing field created by portions of the rod externally projecting beyond the windings and by apertures in those parts of the sheaths facing these rod projecting portions.
摘要翻译：磁致伸缩棒式滤波器，其衰减对频率曲线与常规磁致伸缩棒滤波器具有共振，而且在谐振频率附近的频率处为极点。过滤器包括自由振动的磁致伸缩杆，相对于杆中心对称定位并围绕杆的两个绕组，围绕绕组的除了其上的部分之外的绕组的铁磁材料护套和用于施加直流电压的装置。磁场到杆。衰减曲线的极点是由于杆的部分外部突出超过绕组而产生的去磁场以及面对这些棒突出部分的护套部分中的孔。

2. 发明授权

US3573671A Lattice-type filters employing mechanical resonators having a multiplicity of poles and zeros 失效
标题翻译：使用具有POLY和ZEROS多项式的机械谐振器的滤波器型滤波器
公开(公告)号：US3573671A
公开(公告)日：1971-04-06
申请号：US3573671D
申请日：1968-11-18
申请人： COLLINS RADIO CO
发明人： JOHNSON ROBERT A , TESKE ROGER J
IPC分类号： A47B96/06 , H03H9/135 , H03H9/52 , H03H9/56 , H03H9/32 , H03H9/26
CPC分类号： A47B96/061
摘要： A lattice-type filter with the series arm and crossarm impedances comprised of a multiresonant mechanical structure having a plurality of arrangeable poles and zeros. The multiresonant structure can comprise a plurality of discs with their axes lying along a common line. Coupling wires secured to the disc perimeters hold them in place and transmit energy. The input means is a coil wound on a magnetostrictive rod secured to an end disc.

3. 发明授权

US2888650A Two end wire mechanical filter 失效
标题翻译：两端线机械过滤器
公开(公告)号：US2888650A
公开(公告)日：1959-05-26
申请号：US55299955
申请日：1955-12-14
申请人： COLLINS RADIO CO
发明人： DOELZ MELVIN L
IPC分类号： H03H9/135 , H03H9/50
CPC分类号： H03H9/50 , H03H9/135

4. 发明授权

US12034434B2 High quality factor integrated acoustic resonant metamaterials with large frequency tuning range for reconfigurable radio-frequency front-ends 有权
公开(公告)号：US12034434B2
公开(公告)日：2024-07-09
申请号：US17627196
申请日：2020-08-24
申请人： Northeastern University
发明人： Cristian Cassella
IPC分类号： H03H9/62 , H03B5/32 , H03B5/36 , H03H3/013 , H03H9/02 , H03H9/135 , H03H9/22 , H03H9/56 , H03L7/099
CPC分类号： H03H9/62 , H03B5/32 , H03B5/36 , H03H3/013 , H03H9/02062 , H03H9/135 , H03H9/22 , H03H9/568 , H03L7/099
摘要： Piezoelectric acoustic metamaterial resonators include a piezoelectric substrate having a top surface and a bottom surface and a plurality of magnetostrictive members disposed on the top surface of the piezoelectric substrate and extending along a length of the piezoelectric substrate and spaced across a width of the piezoelectric substrate.

5. 发明公开

US20230327633A1 ACOUSTIC WAVE DEVICE 审中-公开
公开(公告)号：US20230327633A1
公开(公告)日：2023-10-12
申请号：US18130930
申请日：2023-04-05
申请人： Murata Manufacturing Co., Ltd.
发明人： Toshimaro YONEDA
IPC分类号： H03H9/17 , H03H9/02 , H03H9/56 , H03H9/135
CPC分类号： H03H9/02015 , H03H9/135 , H03H9/17 , H03H9/568
摘要： An acoustic wave device includes first and second piezoelectric layers including lithium niobate or lithium tantalate, a pair of first and second electrodes on a first principal surface of the first piezoelectric layer, and a pair of third and fourth electrodes on a first principal surface of the second piezoelectric layer, wherein the first piezoelectric layer and the first and second electrodes define a first acoustic wave resonator, the second piezoelectric layer and the third and fourth electrodes define a second acoustic wave resonator, and an angle between a crystal orientation of the first piezoelectric layer and a direction perpendicular or substantially perpendicular to a lengthwise direction of the pair of the first and second electrodes is different from an angle between a crystal orientation of the second piezoelectric layer and a direction perpendicular or substantially perpendicular to a lengthwise direction of the pair of the third and fourth electrodes.

6. 发明授权

US3816775A Electromechanical converter of flexural vibrations 失效
标题翻译：柔性振动的机电转换器
公开(公告)号：US3816775A
公开(公告)日：1974-06-11
申请号：US86450269
申请日：1969-10-07
申请人： KHAIMOV M , KHEIFETS E
发明人： KHAIMOV M , KHEIFETS E
IPC分类号： H03H9/135 , H04R17/00
CPC分类号： H03H9/135
摘要： An electromechanical converter of flexural vibrations used, for example, in electromechanical filters in the field of radio engineering, comprising a disk-shaped resonating element and a transducer element for converting electrical vibrations into mechanical and mechanical vibrations into electrical, wherein said converter features increased stability to the effect of mechanical loads and is easily tuned to the desired frequency. The transducer element takes the form of a ring of piezoelectric material disposed on the periphery of the disc engaging asymmetrically with respect to a central plane of the disc which is transverse to the axis thereof. A manipulation of the extent of asymmetry and the axial dimension of the ring provides an optimal arrangement and a control on the parameters of the converter.
摘要翻译：用于例如在无线电工程领域的机电滤波器中使用的弯曲振动的机电转换器包括盘形谐振元件和用于将电振动转换为机械和机械振动为电的换能器元件，其中所述转换器具有增加的稳定性对于机械负载的影响，并且容易地调节到期望的频率。换能器元件采取一种压电材料环的形式，该压电材料环设置在圆盘的周边上，相对于与其轴线横切的盘的中心平面不对称地接合。对环的不对称程度和轴向尺寸的操作提供了对转换器的参数的最佳布置和控制。

7. 发明授权

US3194991A Magnetostrictive transducer including wire supported resonator 失效
标题翻译：磁致伸缩传感器，包括有线支撑的谐振器
公开(公告)号：US3194991A
公开(公告)日：1965-07-13
申请号：US25832163
申请日：1963-02-13
申请人： TELEFUNKEN PATENT
发明人： MANFRED BORNER , HANS SCHUSSLER
IPC分类号： H03H9/135 , H03H9/22
CPC分类号： H03H9/135 , H03H9/22

8. 发明授权

US2709243A Drive system for mechanical filter 失效
标题翻译：机械过滤器驱动系统
公开(公告)号：US2709243A
公开(公告)日：1955-05-24
申请号：US28834952
申请日：1952-05-16
申请人： COLLINS RADIO CO
发明人： BABCOCK DEAN F
IPC分类号： H03H9/135 , H03H9/50
CPC分类号： H03H9/135 , H03H9/50

9. 发明授权

US2343059A Piezoelectric crystal apparatus 失效
公开(公告)号：US2343059A
公开(公告)日：1944-02-29
申请号：US35725140
申请日：1940-09-18
申请人： BELL TELEPHONE LABOR INC
发明人： HIGHT STUART C
IPC分类号： H03H9/09 , H03H9/13 , H03H9/135 , H03H9/19
CPC分类号： H03H9/19 , H03H9/132

10. 发明授权

US2081405A Wave filter 失效
公开(公告)号：US2081405A
公开(公告)日：1937-05-25
申请号：US3351135
申请日：1935-07-27
申请人： BELL TELEPHONE LABOR INC
发明人： MASON WARREN P
IPC分类号： C07C209/48 , G04F5/06 , H03H9/00 , H03H9/05 , H03H9/135 , H03H9/21 , H03H9/52 , H03H9/54 , H03H9/56 , H03H9/60 , H03H9/62
CPC分类号： G04F5/063 , C07C209/48 , H03H9/0095 , H03H9/56 , H03H9/566 , H03H9/60 , Y10S84/09

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