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公开(公告)号：US12063026B2
公开(公告)日：2024-08-13
申请号：US18151704
申请日：2023-01-09
发明人： Joshua James Caron , Rei Goto
CPC分类号： H03H9/02228 , H03H9/02031 , H03H9/02102 , H03H9/0561 , H03H9/132 , H03H9/205 , H03H9/58
摘要： A laterally excited bulk acoustic wave device is disclosed. The laterally excited bulk acoustic wave device can include a first solid acoustic mirror, a second solid acoustic mirror, a piezoelectric layer that is positioned between the first solid acoustic mirror and the second solid acoustic mirror, an interdigital transducer electrode on the piezoelectric layer, and a support substrate arranged to dissipate heat associated with the bulk acoustic wave. The interdigital transducer electrode is arranged to laterally excite a bulk acoustic wave. The first solid acoustic mirror and the second solid acoustic mirror are arranged to confine acoustic energy of the bulk acoustic wave. The first solid acoustic mirror is positioned on the support substrate.
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公开(公告)号：US11626842B2
公开(公告)日：2023-04-11
申请号：US17121904
申请日：2020-12-15
IPC分类号： H03F1/56 , H03F3/24 , H04B1/3827
摘要： A tunable vector recombination amplifier comprises an input, an output, first and second amplifier circuit paths each including a respective phase shifter to receive a respective input signal from the input and to apply a respective phase shift to produce a respective phase-shifted signal, a respective interstage impedance matching network, and a respective amplifier connected between the respective phase shifter and interstage impedance matching network to receive and amplify the respective phase-shifted signal to produce a respective amplified signal, first and second controllable DC voltage sources each coupled to a respective amplifier and configured to provide a respective supply voltage to the respective amplifier, values of the supply voltages being independently controllable, and an output amplifier stage to receive, amplify, and vectorially combine the amplified signals to produce a combined signal having a specified phase determined by the phase shifts and supply-voltage values and a specified amplitude at the output.
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3.发明申请公开(公告)号：US20220077840A1
公开(公告)日：2022-03-10
申请号：US17462258
申请日：2021-08-31
发明人： Joshua James Caron
摘要： An electronic device includes a multi-layer piezoelectric substrate including a carrier substrate, a layer of piezoelectric material disposed on a front side of the carrier substrate, and a back-side layer of material disposed on a rear side of the carrier substrate, the back-side layer of material having a coefficient of thermal expansion different than a coefficient of thermal expansion of the carrier substrate, and one or more acoustic wave devices disposed on a front side of the multi-layer piezoelectric substrate, the one or more acoustic wave devices exhibiting a lesser difference in temperature coefficient of frequency at respective resonant and antiresonant frequencies than in a substantially similar device lacking the back-side layer of material.
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公开(公告)号：US11165406B2
公开(公告)日：2021-11-02
申请号：US16287891
申请日：2019-02-27
发明人： Chih-Ming Lin , Jie Zou , Toru Jibu , Chun Sing Lam , Joshua James Caron
IPC分类号： H03H9/02 , H03H9/56 , H03H9/17 , H03H9/70 , H03H9/13 , H03H9/205 , H03H9/60 , H03H9/58 , H01Q1/50 , H03F3/21 , H04B1/40 , H03H9/46
摘要： Aspects of this disclosure relate to an acoustic wave device that includes a bulk acoustic wave resonator and a Lamb wave element implemented on a common substrate. In some instances, the bulk acoustic wave resonator can be a film bulk acoustic wave resonator. Related radio frequency modules and wireless communication devices are disclosed.
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公开(公告)号：US20210313965A1
公开(公告)日：2021-10-07
申请号：US17229048
申请日：2021-04-13
发明人： Joshua James Caron
摘要： Aspects of this disclosure relate to a multiplexer, such as a duplexer, a quadplexer, a hexaplexer, or the like. The multiplexer includes acoustic wave filters coupled to a common node. A first acoustic wave filter of the acoustic wave filters includes acoustic wave resonators of a first type and a series acoustic wave resonator of a second type coupled between the acoustic wave resonators of the first type and the common node.
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公开(公告)号：US20210226607A1
公开(公告)日：2021-07-22
申请号：US17222111
申请日：2021-04-05
发明人： Joshua James Caron
摘要： An acoustic wave device includes an acoustic wave filter configured to filter a radio frequency signal and a loop circuit coupled to the acoustic wave filter. The loop circuit is configured to generate an anti-phase signal to a target signal at a particular frequency. The loop circuit includes a Lamb wave resonator having a piezoelectric layer and an interdigital transducer electrode disposed on the piezoelectric layer. The piezoelectric layer includes free edges. An edge of the piezoelectric layer is configured to one of suppress or scatter reflections of acoustic waves generated by the interdigital transducer electrode from the edge of the piezoelectric layer.
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7.发明申请公开(公告)号：US20210105004A1
公开(公告)日：2021-04-08
申请号：US17124862
申请日：2020-12-17
发明人： Tomoya Komatsu , Yiliu Wang , Akira Ochiai , Joshua James Caron
摘要： Aspects of this disclosure relate to an acoustic wave filter with an acoustic wave resonator arranged to concentrate a transverse spurious mode at a frequency. Such an acoustic wave resonator can have a narrow aperture to concentrate the transverse spurious mode. The transverse spurious mode can increase steepness of a skirt of the acoustic wave filter. Related methods, acoustic wave devices, multiplexers, radio frequency front ends, radio frequency modules, and wireless communication devices are disclosed.
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公开(公告)号：US20240305265A1
公开(公告)日：2024-09-12
申请号：US18597835
申请日：2024-03-06
发明人： Takuya Ushiyama , Stephen Joseph Kovacic , Joshua James Caron , Benjamin Paul Abbott , Hidehito Shimizu , Koichi Hatano
CPC分类号： H03H9/14541 , H03H9/02834 , H03H9/14502
摘要： A surface acoustic wave device has a trench formed adjacent to at least one interdigital transducer electrode into the piezoelectric substrate. The trench can be adapted to enhance confinement of acoustic wave energy provided by the interdigital transducer electrode.
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公开(公告)号：US11967947B2
公开(公告)日：2024-04-23
申请号：US17229048
申请日：2021-04-13
发明人： Joshua James Caron
摘要： Aspects of this disclosure relate to a multiplexer, such as a duplexer, a quadplexer, a hexaplexer, or the like. The multiplexer includes acoustic wave filters coupled to a common node. A first acoustic wave filter of the acoustic wave filters includes acoustic wave resonators of a first type and a series acoustic wave resonator of a second type coupled between the acoustic wave resonators of the first type and the common node.
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公开(公告)号：US11881837B2
公开(公告)日：2024-01-23
申请号：US17099517
申请日：2020-11-16
CPC分类号： H03H9/02685 , H03F3/245 , H03H9/02574 , H03H9/02834 , H03H9/02842 , H03H9/145 , H03H9/25 , H03H9/6406 , H03H9/6483 , H04B1/40 , H03F2200/451
摘要： Aspects of this disclosure relate to a surface acoustic wave device with a vertical stack over a piezoelectric layer. The vertical stack can include a first acoustic reflector disposed on the piezoelectric layer, a second acoustic reflector disposed on the piezoelectric layer, and an interdigital transducer electrode disposed on the piezoelectric layer and positioned between the first acoustic reflector and the second acoustic reflector. The interdigital transducer electrode has a first side that is closer to the first acoustic reflector and a second side that is closer to the second acoustic reflector. A vertical arrangement of the vertical stack can be configured such that an acoustic wave propagation velocity of a first region between the first side and a first reflector is faster than an acoustic wave propagation velocity of a second region between the first side and the second side.
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