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219 条记录 (耗时 0.043 秒)

    ANTENNA DUPLEXER
    56.
    发明申请
    ANTENNA DUPLEXER 有权
    天线双机

    公开(公告)号：US20080284540A1

    公开(公告)日：2008-11-20

    申请号：US12106888

    申请日：2008-04-21

    申请人： Tokihiro NISHIHARA ,  Masafumi Iwaki ,  Shinji Taniguchi ,  Masanori Ueda ,  Go Endo ,  Koichi Hatano

    发明人： Tokihiro NISHIHARA ,  Masafumi Iwaki ,  Shinji Taniguchi ,  Masanori Ueda ,  Go Endo ,  Koichi Hatano

    IPC分类号： H03H9/70

    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。

    Acoustic wave device, filter and duplexer
    58.
    发明申请
    Acoustic wave device, filter and duplexer 有权
    声波装置，滤波器和双工器

    公开(公告)号：US20080055021A1

    公开(公告)日：2008-03-06

    申请号：US11896470

    申请日：2007-08-31

    申请人： Masanori Ueda ,  Masafumi Iwaki ,  Tokihiro Nishihara ,  Shinji Taniguchi ,  Go Endo ,  Yasuo Ebata

    发明人： Masanori Ueda ,  Masafumi Iwaki ,  Tokihiro Nishihara ,  Shinji Taniguchi ,  Go Endo ,  Yasuo Ebata

    IPC分类号： H03H9/00

    CPC分类号： H03H9/706 ,  H03H9/562 ,  H03H9/564 ,  H03H9/566 ,  H03H9/568

    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，其具有夹在一对电极之间的c轴取向或偏振轴方向的压电体;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。

    Filter, duplexer and electronic device
    59.
    发明授权
    Filter, duplexer and electronic device 有权
    滤波器，双工器和电子设备

    公开(公告)号：US08912971B2

    公开(公告)日：2014-12-16

    申请号：US13131833

    申请日：2008-11-28

    申请人： Masafumi Iwaki ,  Tokihiro Nishihara ,  Masanori Ueda

    发明人： Masafumi Iwaki ,  Tokihiro Nishihara ,  Masanori Ueda

    IPC分类号： H01Q1/50 ,  H03H9/60 ,  H03H9/05 ,  H03H9/56 ,  H03H9/64

    CPC分类号： H03H9/605 ,  H03H9/0571 ,  H03H9/0576 ,  H03H9/564 ,  H03H9/568 ,  H03H9/6483

    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。