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    • 3. 发明专利
    • Filter structure including piezo-resonator, and its configuration
    • 滤波器结构,包括PIEZO谐振器及其配置
    • JP2007267405A
    • 2007-10-11
    • JP2007128094
    • 2007-05-14
    • Nokia Corpノキア コーポレイション
    • TIKKA PASIELLA JUHA
    • H03H9/54H01L41/09H01L41/18H01L41/22H03H9/00H03H9/17H03H9/58H03H9/60H03H9/64
    • H03H9/0095H03H9/605
    • PROBLEM TO BE SOLVED: To provide a filter structure which uses a plurality of piezo-resonators and has excellent power handling capacity and electric responses. SOLUTION: The filter structure has a chain of piezo-resonators. The chain forms groups of piezo-resonators 1020 and 1110 comprising at least two piezo-resonators connected to a first piezo-resonator in series and is connected in series together with the first piezo-resonator. Each piezo-resonator belonging to the chain of piezo-resonators has resonating frequency substantially equivalent to a first resonating frequency. The groups of piezo-resonators 1020 and 1110 are connected only through the first piezo-resonator 1021b connected in series at one end of the group of the piezo-resonators, and the second piezo-resonator connected in series at the other end of the group of the piezo-resonators. Impedance of the groups of the piezo-resonators connected in series is matched with impedance of the filter structure and the filter structure takes the form of ladder-type filter structures 1090 and 1100. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种使用多个压电谐振器并且具有优异的功率处理能力和电响应的滤波器结构。 滤波器结构具有压电谐振器链。 链形成压电谐振器1020和1110的组,其包括串联连接到第一压电谐振器的至少两个压电谐振器,并与第一压电谐振器一起串联连接。 属于压电谐振器链的每个压电谐振器的谐振频率基本上等于第一谐振频率。 压电谐振器1020和1110的组仅通过串联在压电谐振器组的一端的第一压电谐振器1021b连接,并且第二压电谐振器串联连接在组的另一端 的压电谐振器。 串联连接的压电谐振器组的阻抗与滤波器结构的阻抗相匹配,滤波器结构采用梯形滤波器结构1090和1100的形式。(C)2008,JPO&INPIT
    • 5. 发明专利
    • Filter structure
    • 过滤器结构
    • JP2011072047A
    • 2011-04-07
    • JP2011004509
    • 2011-01-13
    • Nokia Corpノキア コーポレイション
    • ELLA JUHA
    • H03H9/17H03H9/54H03H9/56H04B1/16
    • H03H9/568
    • PROBLEM TO BE SOLVED: To provide a filter structure whose attenuation gradient on an edge in a passband is steep compared to that of a conventional lattice filter. SOLUTION: The structure has: a first port including a first signal line and a second signal line; a second port comprising a first signal line and a second signal line; a first resonator connecting the first signal line of the first port to the first signal line of the second port; a second resonator connecting the second signal line of the first port to the second signal line of the second port; a third resonator connecting the first signal line of the first port to the second signal line of the second port; and a fourth resonator connecting the second signal line of the first port to the first signal line of the second port. The first to fourth resonators are all bulk acoustic wave resonators, the first and second resonators have a first area, the third and fourth resonators have a second area, and the first area is larger than the second area. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种滤波器结构,其在通带中的边缘上的衰减梯度与常规晶格滤波器相比陡峭。 解决方案:该结构具有:包括第一信号线和第二信号线的第一端口; 第二端口,包括第一信号线和第二信号线; 第一谐振器,将第一端口的第一信号线连接到第二端口的第一信号线; 将所述第一端口的第二信号线连接到所述第二端口的第二信号线的第二谐振器; 将第一端口的第一信号线连接到第二端口的第二信号线的第三谐振器; 以及将第一端口的第二信号线连接到第二端口的第一信号线的第四谐振器。 第一至第四谐振器都是体声波谐振器,第一和第二谐振器具有第一区域,第三和第四谐振器具有第二区域,第一区域大于第二区域。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Device containing controllable thin-film bulk acoustic resonator for amplitude and phase modulation
    • 包含可控薄膜泡沫谐振器的装置,用于振幅和相位调制
    • JP2007202171A
    • 2007-08-09
    • JP2007042874
    • 2007-02-22
    • Nokia Corpノキア コーポレーション
    • ELLA JUHA
    • H03C1/08H04R17/00H01L41/09H01L41/18H01L41/22H03C1/46H03C3/10H03C3/42H03H3/02H03H3/04H03H9/17H03H9/54
    • H03H9/175H03C1/46H03C3/42H03H3/04H03H9/173H03H9/174H03H2003/0428
    • PROBLEM TO BE SOLVED: To provide a device containing a controllable BAW resonator for amplitude modulating or phase modulating desired signals. SOLUTION: The bulk acoustic wave resonator comprises a substrate, a resonation means, a first electrode adjacent to the first surface of the resonation means, a second electrode adjacent to the second surface of the resonation means, a membrane positioned between the second electrode and the substrate, a pair of etching windows, and an air gap separating at least a portion of the substrate from at least a portion of the membrane. The air gap is formed by etching a portion of the substrate through the etching windows, the resonation means resonates in response to an electric field generated between the electrodes by a voltage applied between the first and second electrodes, and the air gap insulates vibrations generated by the resonation means from the bulk acoustic wave resonator insulated from the substrate. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种包含用于振幅调制或相位调制所需信号的可控BAW谐振器的装置。 解决方案:体声波谐振器包括衬底,谐振装置,与谐振装置的第一表面相邻的第一电极,与谐振装置的第二表面相邻的第二电极,位于第二电极之间的膜 电极和衬底,一对蚀刻窗口和将至少一部分衬底与膜的至少一部分分开的气隙。 通过蚀刻窗口蚀刻衬底的一部分来形成气隙,谐振装置响应于通过施加在第一和第二电极之间的电压而在电极之间产生的电场而谐振,并且气隙绝缘由 来自与基板绝缘的体声波谐振器的谐振装置。 版权所有(C)2007,JPO&INPIT