Duplexer with transmission and reception filters each including resonators formed on different chips
    42.
    发明授权
    Duplexer with transmission and reception filters each including resonators formed on different chips 有权
    双工器具有发送和接收滤波器,每个滤波器包括形成在不同芯片上的谐振器

    公开(公告)号:US09240768B2

    公开(公告)日:2016-01-19

    申请号:US13610393

    申请日:2012-09-11

    摘要: A duplexer includes a transmission filter and a reception filter having different passbands, wherein: first resonators that are series resonators or parallel resonators included in the transmission and reception filters so as to form a skirt characteristic at a guard band side are a temperature compensated type piezoelectric thin film resonator or a surface acoustic wave resonator using Love waves, and second resonators that form a skirt characteristic at an opposite side to the guard band are one of a temperature non-compensated type piezoelectric thin film resonator, a surface acoustic wave resonator using a lithium tantalate substrate or a substrate made by bonding a lithium tantalate substrate on a sapphire substrate, and a surface acoustic wave resonator using Love waves.

    摘要翻译: 双工器包括具有不同通带的发送滤波器和接收滤波器,其中包括在发送和接收滤波器中的串联谐振器或并联谐振器的第一谐振器在保护带侧形成裙部特性是温度补偿型压电 使用爱波的薄膜谐振器或表面声波谐振器以及与保护带相反侧形成裙部特性的第二谐振器是温度非补偿型压电薄膜谐振器之一,使用 钽酸锂基板或通过将蓝宝石基板上的钽酸锂基板接合而制成的基板和使用爱波的表面声波谐振器。

    Elastic wave device and method for manufacturing the same
    43.
    发明授权
    Elastic wave device and method for manufacturing the same 有权
    弹性波装置及其制造方法

    公开(公告)号:US08854158B2

    公开(公告)日:2014-10-07

    申请号:US13127215

    申请日:2008-11-28

    摘要: A method of manufacturing an elastic wave device is provided with a lamination step of forming, on a substrate (1), a plurality of elastic wave devices, each of which includes a lower electrode (2), a piezoelectric film (3), and an upper electrode (4); a measuring step for measuring the operation frequency distribution of the elastic wave devices on the substrate (1); and an adjusting step for forming an adjusting region, in which the thickness of the elastic wave device is different from the thicknesses of other portions in a resonance portion of each elastic wave device, corresponding with the distribution of the operation frequencies. The adjusting region is formed so that the size of the area of the adjusting region of the resonator portion of each elastic wave device is different in accordance with the operation frequency distribution that is measured. Thus, the frequency characteristics of the elastic wave devices are easily adjusted by a small number of steps.

    摘要翻译: 一种制造弹性波装置的方法具有层压步骤,在基板(1)上形成多个弹性波装置,每个弹性波装置包括下电极(2),压电薄膜(3)和 上电极(4); 用于测量衬底(1)上的弹性波器件的操作频率分布的测量步骤; 以及用于形成调整区域的调整步骤,其中弹性波器件的厚度与每个弹性波器件的谐振部分中的其它部分的厚度不同,与对应于操作频率的分布相对应。 调整区域被形成为使得每个弹性波装置的谐振器部分的调整区域的面积的大小根据所测量的操作频率分布而不同。 因此,弹性波器件的频率特性可以通过少量的步骤容易地调节。

    Filter, duplexer and communication apparatus
    46.
    发明授权
    Filter, duplexer and communication apparatus 有权
    滤波器,双工器和通信设备

    公开(公告)号:US08093962B2

    公开(公告)日:2012-01-10

    申请号:US12494990

    申请日:2009-06-30

    IPC分类号: H03H9/70 H03H9/54

    摘要: A filter has a plurality of piezoelectric thin film resonators formed by sandwiching a piezoelectric film with a lower electrode disposed on a substrate and an upper electrode. Each of the piezoelectric thin film resonators has an electrode region formed with the upper electrode and the lower electrode overlapping each other, whose outline includes a curve. Among the plural piezoelectric thin film resonators, the piezoelectric thin film resonators in the opposing electrode regions of the adjacent piezoelectric thin film resonators are shaped to have outlines complementary to each other. With the filter, influences caused by transverse mode undesired wave of the piezoelectric thin film resonators can be suppressed. Therefore, miniaturization can be achieved without sacrificing the mechanical strength of electrodes having hollow structures.

    摘要翻译: 滤波器具有多个压电薄膜谐振器,其通过将设置在基板上的下电极和上电极夹在压电薄膜上而形成。 每个压电薄膜谐振器具有由上电极和下电极形成的电极区域彼此重叠,其轮廓包括曲线。 在多个压电薄膜谐振器中,相邻的压电薄膜谐振器的相对电极区域中的压电薄膜谐振器被成形为具有彼此互补的轮廓。 利用滤波器​​,可以抑制由压电薄膜谐振器的横向不需要的波形引起的影响。 因此,可以在不牺牲具有中空结构的电极的机械强度的情况下实现小型化。

    FILTER, DUPLEXER AND ELECTRONIC DEVICE
    47.
    发明申请
    FILTER, DUPLEXER AND ELECTRONIC DEVICE 有权
    过滤器,双面器和电子设备

    公开(公告)号:US20110227807A1

    公开(公告)日:2011-09-22

    申请号:US13131833

    申请日:2008-11-28

    IPC分类号: H03H9/54 H03H9/70 H01Q1/50

    摘要: A ladder type filter includes series resonators S1˜S4 connected in series between an input terminal In and an output terminal Out, parallel resonators P1˜P3 connected in parallel between the input terminal In and the output terminal Out, a resonator RP connected in series with the series resonators S1˜S4 between the input terminal and the output terminal, the resonator RP having a resonance frequency lower than resonance frequencies of the series resonators S1˜S4, and an inductor Lp connected in parallel with the resonator. According to the present ladder filter, signals having frequencies away from the pass band can be suppressed by an attenuation pole formed by the inductor. It is further possible to suppress the insertion loss in the pass band by the resonator.

    摘要翻译: 梯形滤波器包括串联连接在输入端子In和输出端子Out之间的串联谐振器S1〜S4,并联在输入端子In和输出端子Out之间的并联谐振器P1〜P3,与 输入端子和输出端子之间的串联谐振器S1〜S4,谐振器RP的谐振频率低于串联谐振器S1〜S4的谐振频率,以及与谐振器并联连接的电感器Lp。 根据本梯形滤波器,可以通过由电感器形成的衰减极来抑制具有远离通带的频率的信号。 还可以通过谐振器抑制通带中的插入损耗。

    Acoustic wave device, filter and duplexer
    48.
    发明授权
    Acoustic wave device, filter and duplexer 有权
    声波装置,滤波器和双工器

    公开(公告)号:US08018298B2

    公开(公告)日:2011-09-13

    申请号:US11896470

    申请日:2007-08-31

    IPC分类号: H03H9/70 H03H9/54

    摘要: An acoustic wave device includes a first resonator having a piezoelectric substance sandwiched between a pair of electrodes in a direction of an c-axis orientation or a polarization axis, and a second resonator that is connected in series and has another piezoelectric substance sandwiched another pair of electrodes so that one of the another pair of electrodes located in the direction of the c-axis orientation or the polarization axis is at a potential equal to that of one of the pair of electrodes of the first resonator in the direction of the c-axis orientation or the polarization axis.

    摘要翻译: 声波装置包括:第一谐振器,其具有在c轴取向或偏振轴方向上夹在一对电极之间的压电体;以及第二谐振器,其串联连接并具有另一个压电体夹在另一对 电极,使得位于c轴取向或偏振轴方向上的另一对电极中的一个电极处于与c轴方向上的第一谐振器的一对电极中的一个电位相等的电位 取向或偏振轴。

    Antenna duplexer
    49.
    发明授权
    Antenna duplexer 有权
    天线双工器

    公开(公告)号:US07872548B2

    公开(公告)日:2011-01-18

    申请号:US12106888

    申请日:2008-04-21

    IPC分类号: H03H9/72 H03H9/64

    CPC分类号: H03H9/725 H03H9/0576

    摘要: An antenna duplexer is provided, which can be built with a smaller size and lower height than ever without compromising out-of-band attenuation characteristic and isolation characteristic between a transmit terminal and a receive terminal. The antenna duplexer includes a transmit filter provided between an antenna terminal and the transmit terminal, and a receive filter provided between the antenna terminal and the receive terminal. The filters are enclosed by a package, in which a ground pattern for the receive filter is separated from other ground patterns.

    摘要翻译: 提供了一种天线双工器,其可以以比以往更小的尺寸和更低的高度构建,而不会损害发射终端和接收终端之间的带外衰减特性和隔离特性。 天线双工器包括设置在天线端子和发射端子之间的发射滤波器以及设置在天线端子和接收端子之间的接收滤波器。 滤波器由封装封装,其中用于接收滤波器的接地图案与其他接地图案分离。