Acoustic wave bandpass filter comprising integrated acoustic guiding
    1.
    发明授权
    Acoustic wave bandpass filter comprising integrated acoustic guiding 有权
    声波带通滤波器,包括集成声导

    公开(公告)号:US09450563B2

    公开(公告)日:2016-09-20

    申请号:US13879598

    申请日:2011-10-11

    摘要: An acoustic wave bandpass filter comprises at least an input first acoustic wave resonator with an output surface, and an output second acoustic wave resonator with an input surface, said resonators being coupled to each other along a set direction, the input and output surfaces being substantially opposite, and at least one first phononic crystal structure between said input and output resonators and/or a second phonic crystal structure at the periphery of said resonators so as to guide the acoustic waves, generated by said input resonator, toward said output resonator along said set direction, the resonators ensuring an impedance conversion and/or a mode conversion.

    摘要翻译: 声波带通滤波器至少包括具有输出表面的输入第一声波谐振器和具有输入表面的输出第二声波谐振器,所述谐振器沿着设定方向彼此耦合,所述输入和输出表面基本上 所述输入和输出谐振器之间的至少一个第一声子晶体结构和/或所述谐振器周围的第二声子晶体结构,以便将由所述输入谐振器产生的声波沿着所述输入谐振器 设定方向,谐振器确保阻抗转换和/或模式转换。

    Heterogenous acoustic structure formed from a homogeneous material
    2.
    发明授权
    Heterogenous acoustic structure formed from a homogeneous material 有权
    由均质材料形成的异质声学结构

    公开(公告)号:US09209779B2

    公开(公告)日:2015-12-08

    申请号:US13879562

    申请日:2011-10-06

    IPC分类号: H03H9/02 H03H3/02 H03H3/08

    摘要: An acoustic structure comprising comprises a layer of material having a first Young's modulus called the intrinsic modulus and a first density called the intrinsic density, characterized in that the layer comprises at least one first zone having said first Young's modulus and said first density and at least one second zone buried in the volume of said layer of material and having a second Young's modulus and/or a second density obtained by implanting and/or by diffusing atoms into the volume of said layer.

    摘要翻译: 声学结构包括包含称为固有模量的第一杨氏模量和称为固有密度的第一密度的材料层,其特征在于,所述层包括具有所述第一杨氏模量和所述第一密度的至少一个第一区域,并且至少 一个第二区域被埋在所述材料层的体积中,并且具有通过将原子注入和/或扩散到所述层的体积中而获得的第二杨氏模量和/或第二密度。

    LATERALLY COUPLED BAW FILTER EMPLOYING PHONONIC CRYSTALS
    3.
    发明申请
    LATERALLY COUPLED BAW FILTER EMPLOYING PHONONIC CRYSTALS 有权
    使用PHONONY CRYSTALS的侧向耦合过滤器

    公开(公告)号:US20130214879A1

    公开(公告)日:2013-08-22

    申请号:US13879406

    申请日:2011-10-10

    IPC分类号: H03H9/56

    摘要: An acoustic wave bandpass filter comprises at least two bulk acoustic wave resonators, laterally coupled to each other acoustically, each resonator including a film of piezoelectric material and at least a first electrode and/or a second electrode, said bulk waves propagating in a direction perpendicular to the plane of the film of piezoelectric material, characterized in that: it further comprises at least a first phononic crystal structure between said resonators such that the transmission coefficient of the lateral acoustic waves can be decreased in a direction parallel to the plane of the piezoelectric film; and the first phononic crystal structure is formed in a matrix of dielectric material or with patterns made from dielectric material.

    摘要翻译: 声波带通滤波器包括至少两个在声学上彼此横向耦合的体声波谐振器,每个谐振器包括压电材料薄膜和至少第一电极和/或第二电极,所述体波在垂直方向上传播 到压电材料薄膜的平面,其特征在于:它还包括在所述谐振器之间的至少第一声子晶体结构,使得横向声波的透射系数可以在平行于压电体的平面的方向上减小 电影; 并且第一声子晶体结构形成在电介质材料的基体中或由介电材料制成的图案。

    Process for producing an acoustic device having a controlled-bandgap phononic crystal structure
    4.
    发明授权
    Process for producing an acoustic device having a controlled-bandgap phononic crystal structure 有权
    具有受控带隙声子晶体结构的声学装置的制造方法

    公开(公告)号:US08819904B2

    公开(公告)日:2014-09-02

    申请号:US13371192

    申请日:2012-02-10

    IPC分类号: H01L41/22

    摘要: A process for producing an acoustic device having a phononic crystal structure comprising inclusions produced in a first medium distributed in a matrix of a second medium, to block propagation of acoustic waves within a bandgap frequency band, includes: defining geometric parameters of said inclusions, which have walls contacting said matrix, making at least one non-zero first wall angle, to the normal of the plane of said structure, said geometric parameters including said first wall angle; determining a function relating to variation in frequency position of said bandgap with said wall angle or relating to variation in width of said bandgap with said wall angle; determining said at least first angle, for a selected frequency position and/or selected width of the bandgap, from the function or functions determined beforehand; and producing said inclusions having at least said first wall angle in said matrix formed by said second medium.

    摘要翻译: 一种用于制造具有声子晶体结构的声学装置的方法,包括:在分布在第二介质的矩阵中的第一介质中产生的夹杂物,以阻挡声带在带隙频带内的传播,包括:限定所述夹杂物的几何参数, 具有与所述基体接触的至少一个非零第一壁角,与所述结构的平面的法线接触,所述几何参数包括所述第一壁角; 确定与所述带隙的频率位置的变化相关的功能,或者与所述带隙的宽度的变化相关的所述壁角; 根据预先确定的功能或功能确定所选择的频率位置和/或带隙的选定宽度的至少第一角度; 并且在由所述第二介质形成的所述基体中产生至少具有所述第一壁角的所述夹杂物。

    HETEROGENOUS ACOUSTIC STRUCTURE FORMED FROM A HOMOGENEOUS MATERIAL
    5.
    发明申请
    HETEROGENOUS ACOUSTIC STRUCTURE FORMED FROM A HOMOGENEOUS MATERIAL 有权
    由均质材料形成的异质声学结构

    公开(公告)号:US20140151151A1

    公开(公告)日:2014-06-05

    申请号:US13879562

    申请日:2011-10-06

    IPC分类号: H03H9/02 H03H3/08

    摘要: An acoustic structure comprising comprises a layer of material having a first Young's modulus called the intrinsic modulus and a first density called the intrinsic density, characterized in that the layer comprises at least one first zone having said first Young's modulus and said first density and at least one second zone buried in the volume of said layer of material and having a second Young's modulus and/or a second density obtained by implanting and/or by diffusing atoms into the volume of said layer.

    摘要翻译: 声学结构包括包含称为固有模量的第一杨氏模量和称为固有密度的第一密度的材料层,其特征在于,所述层包括具有所述第一杨氏模量和所述第一密度的至少一个第一区域,并且至少 一个第二区域被埋在所述材料层的体积中,并且具有通过将原子注入和/或扩散到所述层的体积中而获得的第二杨氏模量和/或第二密度。

    Acoustic Wave Bandpass Filter Comprising Integrated Acoustic Guiding
    6.
    发明申请
    Acoustic Wave Bandpass Filter Comprising Integrated Acoustic Guiding 有权
    声波带通滤波器包括综合声导引

    公开(公告)号:US20130214878A1

    公开(公告)日:2013-08-22

    申请号:US13879598

    申请日:2011-10-11

    IPC分类号: H03H9/54 H03H9/64

    摘要: An acoustic wave bandpass filter comprises at least an input first acoustic wave resonator with an output surface, and an output second acoustic wave resonator with an input surface, said resonators being coupled to each other along a set direction, the input and output surfaces being substantially opposite, and at least one first phononic crystal structure between said input and output resonators and/or a second phonic crystal structure at the periphery of said resonators so as to guide the acoustic waves, generated by said input resonator, toward said output resonator along said set direction, the resonators ensuring an impedance conversion and/or a mode conversion.

    摘要翻译: 声波带通滤波器至少包括具有输出表面的输入第一声波谐振器和具有输入表面的输出第二声波谐振器,所述谐振器沿着设定方向彼此耦合,所述输入和输出表面基本上 所述输入和输出谐振器之间的至少一个第一声子晶体结构和/或所述谐振器周围的第二声子晶体结构,以便将由所述输入谐振器产生的声波沿着所述输入谐振器 设定方向,谐振器确保阻抗转换和/或模式转换。

    COMBINER COMPRISING ACOUSTIC TRANSDUCERS
    7.
    发明申请
    COMBINER COMPRISING ACOUSTIC TRANSDUCERS 有权
    包含声学传感器的组合器

    公开(公告)号:US20110273243A1

    公开(公告)日:2011-11-10

    申请号:US13099696

    申请日:2011-05-03

    IPC分类号: H03H7/38

    摘要: An electrical signal combiner includes at least one first element and a second element respectively connected to a first input port and to a second input port, and a third element connected to an output port, the electrical signals being propagated between the input and output ports. The combiner includes a medium; and the first, second and third elements are acoustic wave transducers, the electrical signals being carried by acoustic waves propagated between the input and output ports within the medium. Advantageously, the first transducer and the third transducer are separated by an acoustic distance of (2k+1)λ/4 with k an integer greater than or equal to 0 with λ the acoustic propagation wavelength; the second transducer and the third transducer are separated by an acoustic distance of (2k′+1)λ/4 with k′ an integer greater than or equal to 0; and the first and second transducers are separated by an acoustic distance of (2k″+2)λ/4 with k″ an integer greater than or equal to 0—in such a manner as to, on the one hand, generate constructive interference at the output port and, on the other hand, to isolate the first and second input ports by destructive interference of acoustic waves at the ports.

    摘要翻译: 电信号组合器包括分别连接到第一输入端口和第二输入端口的至少一个第一元件和第二元件,以及连接到输出端口的第三元件,电信号在输入端口和输出端口之间传播。 组合器包括介质; 并且第一,第二和第三元件是声波换能器,电信号由在介质内的输入和输出端口之间传播的声波承载。 有利地,第一换能器和第三换能器以(2k + 1)λ/ 4的声距离与k为大于或等于0的整数分开,λ为声传播波长; 第二换能器和第三换能器以(2k'+ 1)λ/ 4的声距离分开,k'为大于或等于0的整数; 并且第一和第二换能器以(2k“+2)λ/ 4的声距离分开,其中k”为大于或等于0的整数,一方面在一个方面产生建设性干扰 输出端口,另一方面,通过端口处的声波的相消干扰来隔离第一和第二输入端口。

    Guided Acoustic Wave Resonant Device and Method for Producing the Device
    8.
    发明申请
    Guided Acoustic Wave Resonant Device and Method for Producing the Device 有权
    引导声波谐振器及其制造方法

    公开(公告)号:US20100327995A1

    公开(公告)日:2010-12-30

    申请号:US12827875

    申请日:2010-06-30

    IPC分类号: H03H9/64

    摘要: A guided acoustic wave resonant device is provided. The device comprises at least two filters (F1, . . . , Fi, . . . , FN), each filter comprising at least two acoustic wave resonators (R11- R12, . . . , Ri1-Ri2, . . . , RN1-RN2), each filter having a useful frequency band (BF1, . . . , BFi, . . . , BFN) centred on a central frequency (f1, . . . , fi, . . . , fN), each resonator comprising at least one suite of inter-digitated upper electrodes exhibiting a periodic structure of period (Λij) and a layer of piezoelectric material, each resonator having a coupling coefficient (k21, k22, . . . , k2n) and a resonant frequency (fr1, . . . , fr2, . . . , fN), wherein at least one of the resonators comprises a differentiation layer (CDfi) making it possible in combination with the period of the inter-digitated electrodes to modify the coupling coefficient of the said resonator, the useful band and the central frequency being determined by the resonant frequencies and the coupling coefficients of the resonators which are adapted so as to have a determined useful bandwidth.

    摘要翻译: 提供了一种引导声波谐振装置。 该装置包括至少两个滤波器(F1,...,Fi,...,FN),每个滤波器包括至少两个声波谐振器(R11-R12,...,Ri1-Ri2,...,RN1 -RN2),每个滤波器具有以中心频率(f1,...,fi,...,fN)为中心的有用频带(BF1,...,BFi,...,BFN),每个谐振器包括 具有周期(Λij)的周期性结构的至少一组数字化的上部电极和压电材料层,每个谐振器具有耦合系数(k21,k22,...,k2n)和谐振频率(fr1, 其中,所述谐振器中的至少一个包括微分层(CDfi),使得可以与所述数字化间电极的周期结合以修改所述谐振器的耦合系数 有用频带和中心频率由谐振频率和谐振器的耦合系数确定,这些谐振频率和谐振器的耦合系数被调整为具有 确定有用的带宽。

    Acoustic wave electromechanical device comprising a transduction region and an extended cavity
    9.
    发明授权
    Acoustic wave electromechanical device comprising a transduction region and an extended cavity 有权
    声波机电装置,包括转导区域和扩展腔

    公开(公告)号:US09059677B2

    公开(公告)日:2015-06-16

    申请号:US13456026

    申请日:2012-04-25

    摘要: An electromechanical device having a resonator using acoustic waves propagating laterally within a piezoelectric plane resonant structure and electrodes on a face of said structure. The resonant structure comprises: a transduction region having a transduction length and generating acoustic waves; a free propagation region for the acoustic waves, adjacent to the transduction region and defined the plane of the transduction region; the resonant structure length being equal to an integer number of half-wavelengths, the resonance frequency of said resonator equaling the average propagation velocity of the wave within the structure divided by said wavelength, to adjust the quality factor of the resonator fixed by the length of the resonant structure and the coupling coefficient fixed by the ratio of the transduction length over the length of the resonant structure; the resonant structure defined by the assembly of the transduction region and the propagation region being laterally bounded by reflection regions.

    摘要翻译: 一种机电装置,其具有使用在压电平面共振结构内横向传播的声波和在所述结构的面上的电极的谐振器。 谐振结构包括:具有转导长度并产生声波的转导区域; 用于声波的自由传播区域,邻近转导区域并限定换能区域的平面; 谐振结构长度等于半波长的整数,所述谐振器的谐振频率等于结构中的波的平均传播速度除以所述波长,以调整谐振器的质量因子固定的长度 谐振结构和耦合系数由谐振结构长度上的换能长度比固定; 由转导区域和传播区域的组装限定的共振结构由反射区域横向界定。

    Combiner comprising acoustic transducers
    10.
    发明授权
    Combiner comprising acoustic transducers 有权
    组合器包括声换能器

    公开(公告)号:US08872598B2

    公开(公告)日:2014-10-28

    申请号:US13099696

    申请日:2011-05-03

    摘要: An electrical signal combiner includes at least one first element and a second element respectively connected to a first input port and to a second input port, and a third element connected to an output port, the electrical signals being propagated between the input and output ports. The combiner includes a medium; and the first, second and third elements are acoustic wave transducers, the electrical signals being carried by acoustic waves propagated between the input and output ports within the medium. Advantageously, the first transducer and the third transducer are separated by an acoustic distance of (2k+1)λ/4 with k an integer greater than or equal to 0 with λ the acoustic propagation wavelength; the second transducer and the third transducer are separated by an acoustic distance of (2k′+1)λ/4 with k′ an integer greater than or equal to 0; and the first and second transducers are separated by an acoustic distance of (2k″+2)λ/4 with k″ an integer greater than or equal to 0—in such a manner as to, on the one hand, generate constructive interference at the output port and, on the other hand, to isolate the first and second input ports by destructive interference of acoustic waves at the ports.

    摘要翻译: 电信号组合器包括分别连接到第一输入端口和第二输入端口的至少一个第一元件和第二元件,以及连接到输出端口的第三元件,电信号在输入端口和输出端口之间传播。 组合器包括介质; 并且第一,第二和第三元件是声波换能器,电信号由在介质内的输入和输出端口之间传播的声波承载。 有利地,第一换能器和第三换能器以(2k + 1)λ/ 4的声距离与k为大于或等于0的整数分开,λ为声传播波长; 第二换能器和第三换能器以(2k'+ 1)λ/ 4的声距离分开,k'为大于或等于0的整数; 并且第一和第二换能器以(2k“+2)λ/ 4的声距离分开,其中k”为大于或等于0的整数,一方面在一个方面产生建设性干扰 输出端口,另一方面,通过端口处的声波的相消干扰来隔离第一和第二输入端口。