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    • 6. 发明授权
    • Combiner comprising acoustic transducers
    • 组合器包括声换能器
    • US08872598B2
    • 2014-10-28
    • US13099696
    • 2011-05-03
    • Frédéric DomingueAlexandre Reinhardt
    • Frédéric DomingueAlexandre Reinhardt
    • H03H7/48H01L41/04H01L41/083H03H9/02H03H9/58H03H9/70H03H9/74
    • H03H9/0222H01L41/04H01L41/083H03H9/02228H03H9/585H03H9/589H03H9/70H03H9/74
    • 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.
    • 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。
    • 9. 发明申请
    • LATERALLY COUPLED BAW FILTER EMPLOYING PHONONIC CRYSTALS
    • 使用PHONONY CRYSTALS的侧向耦合过滤器
    • US20130214879A1
    • 2013-08-22
    • US13879406
    • 2011-10-10
    • Marie GorisseAlexandre Reinhardt
    • Marie GorisseAlexandre Reinhardt
    • H03H9/56
    • H03H9/564H03H9/02086H03H9/56
    • 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.
    • 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。
    • 10. 发明授权
    • Laterally coupled BAW filter employing phononic crystals
    • 使用声子晶体的横向耦合的BAW滤波器
    • US09325293B2
    • 2016-04-26
    • US13879406
    • 2011-10-10
    • Marie GorisseAlexandre Reinhardt
    • Marie GorisseAlexandre Reinhardt
    • H03H9/56H03H9/02
    • H03H9/564H03H9/02086H03H9/56
    • 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.
    • 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。