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    • 1. 发明公开
    • Acoustic resonator
    • Akustischer谐振器
    • EP1895660A2
    • 2008-03-05
    • EP07015783.9
    • 2007-08-10
    • Infineon Technologies AG
    • Elbrecht, LuederHandtmann, MartinKaitila, JyrkiMeckes, Andreas
    • H03H9/58
    • H03H9/585H03H9/0095H03H9/589H03H9/605
    • An acoustic resonator is described, the acoustic resonator comprising a stack of a first (440) and a second piezoelectric body (450), wherein said first and second piezoelectric bodies have a same spatial piezoelectric orientation, a center electrode (430) being arranged between said first and said second piezoelectric body forming a first terminal of said acoustic resonator, and first (410) and second electrodes (420), wherein said first electrode is arranged such that said first piezoelectric body is arranged between said first electrode and said center electrode, wherein said second electrode is arranged such that said second piezoelectric body is arranged between said second electrode and said center electrode, and wherein said first and said second electrode are electrically connected to each other forming a second terminal of said acoustic resonator.
    • 描述了声谐振器,声谐振器包括第一(440)和第二压电体(450)的堆叠,其中所述第一和第二压电体具有相同的空间压电取向,中心电极(430)布置在 所述第一和第二压电体形成所述声谐振器的第一端,以及第一和第二电极,其中所述第一电极被布置成使得所述第一压电体布置在所述第一电极和所述中心电极之间 其中所述第二电极被布置为使得所述第二压电体布置在所述第二电极和所述中心电极之间,并且其中所述第一和所述第二电极彼此电连接,形成所述声谐振器的第二端子。
    • 2. 发明公开
    • Acoustic resonator
    • 声学谐振器
    • EP1895660A3
    • 2008-12-24
    • EP07015783.9
    • 2007-08-10
    • Infineon Technologies AG
    • Elbrecht, LuederHandtmann, MartinKaitila, JyrkiMeckes, Andreas
    • H03H9/58
    • H03H9/585H03H9/0095H03H9/589H03H9/605
    • An acoustic resonator is described, the acoustic resonator comprising a stack of a first (440) and a second piezoelectric body (450), wherein said first and second piezoelectric bodies have a same spatial piezoelectric orientation, a center electrode (430) being arranged between said first and said second piezoelectric body forming a first terminal of said acoustic resonator, and first (410) and second electrodes (420), wherein said first electrode is arranged such that said first piezoelectric body is arranged between said first electrode and said center electrode, wherein said second electrode is arranged such that said second piezoelectric body is arranged between said second electrode and said center electrode, and wherein said first and said second electrode are electrically connected to each other forming a second terminal of said acoustic resonator.
    • 描述了声谐振器,声谐振器包括第一(440)和第二压电体(450)的叠层,其中所述第一和第二压电体具有相同的空间压电取向,中心电极(430)布置在 所述第一压电体和所述第二压电体形成所述声共振器的第一端子,以及第一电极(410)和第二电极(420),其中所述第一电极布置为使得所述第一压电体布置在所述第一电极与所述中心电极 其中所述第二电极被布置为使得所述第二压电体被布置在所述第二电极和所述中心电极之间,并且其中所述第一和所述第二电极彼此电连接,从而形成所述声共振器的第二端子。
    • 3. 发明公开
    • Baw duplexer without phase shifter
    • BAW-Duplexer ohne Phasenschieber
    • EP1772961A2
    • 2007-04-11
    • EP06020847.7
    • 2006-10-04
    • Infineon Technologies AG
    • Aigner, RobertHandtmann, Martin
    • H03H2/00H03H9/70
    • H03H9/706
    • A duplexer for connection with an antenna comprises an antenna port, a transmitting filter (300) comprising bulk acoustic wave (BAW) resonators having a first antenna side impedance (301) coupled with the antenna port, a receiving filter (320) comprising BAW resonators having a second antenna side impedance (321) coupled with the antenna port, and a shunt inductance (340) coupled between the antenna port and ground. The shunt inductance (340) and the first and second antenna side impedances (301,321) of the transmitting filter (300) and the receiving filter (320) are selected in such a way that the shunt inductance (340) turns the first and second input impedances (301,321) in a negative direction in a Smith diagram.
    • 用于与天线连接的双工器包括天线端口,包括具有与天线端口耦合的第一天线侧阻抗(301)的体声波(BAW)谐振器的发射滤波器(300),包括BAW谐振器 具有与天线端口耦合的第二天线侧阻抗(321)和耦合在天线端口和地之间的并联电感(340)。 分流电感(340)和发射滤波器(300)和接收滤波器(320)的第一和第二天线侧阻抗(301,321)以这样的方式选择,使得并联电感(340)使第一和第二输入 阻力(301,321)在史密斯图中呈负方向。
    • 4. 发明公开
    • Coupled resonator filter with a filter section
    • Gekoppelter Resonatorfilter mit einem Filterabschnitt
    • EP1998445A2
    • 2008-12-03
    • EP08009098.8
    • 2008-05-16
    • Infineon Technologies AG
    • Thalhammer, RobertHandtmann, Martin
    • H03H9/58H03H9/60
    • H03H9/0095H03H9/584H03H9/589H03H9/605Y10T29/42
    • A bulk acoustic wave (BAW) filter device includes a first port, a second port, a first coupled resonator filter stage, a second coupled resonator filter stage and a filter section. The first coupled resonator filter stage includes a first BAW resonator connected to the first port and a second BAW resonator acoustically coupled to the first BAW resonator. The second coupled resonator filter stage includes a third BAW resonator connected to the second port and a fourth BAW resonator acoustically coupled to the third BAW resonator. The filter section includes a fifth BAW resonator, the fifth BAW resonator connected between the second BAW resonator and the fourth BAW resonator.
    • 体声波(BAW)滤波器装置包括第一端口,第二端口,第一耦合谐振器滤波器级,第二耦合谐振器滤波器级和滤波器部分。 第一耦合谐振器滤波器级包括连接到第一端口的第一BAW谐振器和声耦合到第一BAW谐振器的第二BAW谐振器。 第二耦合谐振器滤波器级包括连接到第二端口的第三BAW谐振器和声耦合到第三BAW谐振器的第四BAW谐振器。 滤波器部分包括第五个BAW谐振器,第五个BAW谐振器连接在第二个BAW谐振器和第四个BAW谐振器之间。