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230 条记录 (耗时 0.077 秒)

    ACOUSTIC WAVE FILTER WITH MULTIPLE ACOUSTIC WAVE DEVICES ON A SUBTRATE
    11.
    发明申请
    ACOUSTIC WAVE FILTER WITH MULTIPLE ACOUSTIC WAVE DEVICES ON A SUBTRATE 有权

    公开(公告)号：US20220271734A1

    公开(公告)日：2022-08-25

    申请号：US17651300

    申请日：2022-02-16

    申请人： Skyworks Solutions, Inc.

    发明人： Benjamin Paul Abbott ,  Gong Bin Tang ,  Rei Goto ,  Keiichi Maki

    IPC分类号： H03H9/145 ,  H03H3/10 ,  H03H9/02 ,  H03H9/25 ,  H03H9/64

    摘要： An acoustic wave filter includes a piezoelectric layer. A first acoustic wave device includes a portion of the piezoelectric layer and a first multi-layer interdigital transducer electrode disposed over the first portion of the piezoelectric layer. Additional acoustic wave devices are coupled to the first acoustic wave device, the additional acoustic wave devices including a second portion of the piezoelectric layer and a plurality of multi-layer interdigital transducer electrodes disposed over the second portion of the piezoelectric layer. At least one of the plurality of multi-layer interdigital transducer electrodes includes a layer that is thinner than a corresponding layer of the same material of the first multi-layer interdigital transducer electrode of the first acoustic wave device.

    TECHNIQUE FOR DESIGNING ACOUSTIC MICROWAVE FILTERS USING LCR-BASED RESONATOR MODELS
    16.
    发明申请
    TECHNIQUE FOR DESIGNING ACOUSTIC MICROWAVE FILTERS USING LCR-BASED RESONATOR MODELS 审中-公开

    公开(公告)号：US20190392090A1

    公开(公告)日：2019-12-26

    申请号：US16400717

    申请日：2019-05-01

    申请人： Resonant, Inc.

    发明人： Kurt F. Raihn ,  Patrick J. Turner ,  Neal O. Fenzi

    IPC分类号： G06F17/50 ,  H03H3/10 ,  H03H3/04 ,  H03H3/007

    摘要： A method for designing a narrowband acoustic wave microwave filter including: generating a modeled filter circuit design having circuit elements including an acoustic resonant element defined by an electrical circuit model that includes a parallel static branch, a parallel motional branch, and one or both of a parallel Bragg Band branch that models an upper Bragg Band discontinuity and a parallel bulk mode function that models an acoustic bulk mode loss; and generating a final circuit design. Generating the final circuit design includes optimizing the modeled filter circuit design to generate an optimized filter circuit design; comparing a frequency response of the optimized filter circuit design to requirements; selecting the optimized filter circuit design for construction into the actual acoustic microwave filter based on the comparison; and transforming the optimized filter circuit design to a design description file for input to a construction process.

    TEMPERATURE COMPENSATED ACOUSTIC WAVE DEVICES
    20.
    发明申请
    TEMPERATURE COMPENSATED ACOUSTIC WAVE DEVICES 审中-公开

    公开(公告)号：US20190068159A1

    公开(公告)日：2019-02-28

    申请号：US16110980

    申请日：2018-08-23

    申请人： Resonant Inc.

    发明人： Sean McHugh ,  Patrick Turner ,  Ventsislav Yantchev ,  Filip Iliev

    IPC分类号： H03H9/64 ,  H03H9/02 ,  H03H9/145 ,  H03H9/25 ,  H03H3/10

    摘要： Surface acoustic wave (SAW) resonator, SAW filters, and methods of fabricating SAW filters. A first plurality of parallel conductors extending from a first bus bar are formed on a surface of a 128-degree Y-cut lithium niobate substrate. A second plurality of parallel conductors extending from a second bus bar are formed on the surface of the substrate, the second plurality of parallel conductors interleaved with the first plurality of parallel conductors. An SiO2 layer overlays the first and second pluralities of parallel conductors. The first and second pluralities of parallel conductors are substantially copper and have a thickness DCU defined by 0.12 P≤DCU≤0.24P, where P is a center-to-center spacing of adjacent parallel conductors. The SiO2 layer has a thickness DOX defined by 3.1DCU≤DOX≤4.5DCU.