Duplexer and ladder type filter
    3.
    发明授权
    Duplexer and ladder type filter 有权
    双工器和梯形过滤器

    公开(公告)号:US07573354B2

    公开(公告)日:2009-08-11

    申请号:US11500486

    申请日:2006-08-08

    CPC分类号: H03H9/706 H03H9/605 H03H9/725

    摘要: A duplexer includes an antenna terminal, a first filter connected to the antenna terminal, and a second filter connected to the antenna terminal. At least one of the first filter and the second filter is a ladder type filter in which a parallel resonator and multiple series resonators are included, one or more first inductors are respectively connected in parallel with one or more series resonators out of the multiple series resonators, and one of the one or more first inductors is connected in parallel with one of the multiple series resonators that is arranged closest to the antenna terminal.

    摘要翻译: 双工器包括天线端子,连接到天线端子的第一滤波器和连接到天线端子的第二滤波器。 第一滤波器和第二滤波器中的至少一个是梯形滤波器,其中包括并联谐振器和多个串联谐振器,一个或多个第一电感器分别与多个串联谐振器中的一个或多个串联谐振器并联连接 并且所述一个或多个第一电感器中的一个与最靠近天线端子布置的多个串联谐振器中的一个并联连接。

    Duplexer
    4.
    发明授权
    Duplexer 有权
    双工器

    公开(公告)号:US07479846B2

    公开(公告)日:2009-01-20

    申请号:US11262765

    申请日:2005-11-01

    IPC分类号: H03H9/64 H03H9/72

    摘要: A duplexer that includes: a transmission filter and a reception filter that are connected to a common terminal; and a reactance circuit that is connected to at least one of the transmission filter and the reception filter. The reactance circuit includes an insulating substrate, lumped-constant inductors, and at least one capacitor. The lumped-constant inductors and the capacitor are formed directly on the surface of the insulating substrate.

    摘要翻译: 一种双工器,包括:连接到公共端子的发送滤波器和接收滤波器; 以及与发送滤波器和接收滤波器中的至少一个连接的电抗电路。 电抗电路包括绝缘衬底,集总常数电感器和至少一个电容器。 集中常数电感器和电容器直接形成在绝缘基板的表面上。

    FILTER, DEMULTIPLEXER, AND MODULE INCLUDING DEMULTIPLEXER, COMMUNICATION APPARATUS
    6.
    发明申请
    FILTER, DEMULTIPLEXER, AND MODULE INCLUDING DEMULTIPLEXER, COMMUNICATION APPARATUS 有权
    滤波器,解复用器和模块,包括解复用器,通信设备

    公开(公告)号:US20100150075A1

    公开(公告)日:2010-06-17

    申请号:US12709182

    申请日:2010-02-19

    IPC分类号: H04W4/00 H03H7/12

    CPC分类号: H03H9/0576 H03H9/725

    摘要: A demultiplexer has a common terminal, a transmission terminal, and a reception terminal, and furthermore includes a transmission filter connected between the common terminal and the transmission terminal, a reception filter connected between the common terminal and the reception terminal, and a phase shift circuit connected in series to the reception filter connected between the common terminal and the reception terminal. A node on the line from the phase shift circuit to the common terminal or the transmission terminal, and a node on the line from the phase shift circuit to the reception terminal are coupled via a reactance. Accordingly, it is possible to fundamentally reduce or eliminate the situation in which transmission signals from the transmission filter arrive at the reception circuit, and improve isolation.

    摘要翻译: 解复用器具有公共端子,发送端子和接收端子,并且还包括连接在公共端子和发送端子之间的发送滤波器,连接在公共端子和接收端子之间的接收滤波器以及相移电路 与连接在公共端子和接收端子之间的接收滤波器串联连接。 从相移电路到共用端子或发送端子的线路上的节点,以及从相移电路到接收端子的线路上的节点经由电抗耦合。 因此,可以从根本上减少或消除来自发送滤波器的发送信号到达接收电路并且改善隔离的情况。

    Acoustic wave device and filter using the same
    8.
    发明授权
    Acoustic wave device and filter using the same 有权
    声波装置和滤波器使用相同

    公开(公告)号:US07688161B2

    公开(公告)日:2010-03-30

    申请号:US11976441

    申请日:2007-10-24

    IPC分类号: H03H9/64 H03H9/52 H03H9/25

    CPC分类号: H03H9/6483

    摘要: An acoustic wave device includes a piezoelectric substrate, a resonator having comb electrodes that are provided above the piezoelectric substrate and excite an acoustic wave, and a capacitor that is provided above the piezoelectric substrate and is connected in series or parallel with the resonator, the capacitor including electrodes that horizontally face each other above the piezoelectric substrate. The electrodes of the capacitor are further from the piezoelectric substrate than the comb electrodes of the resonator.

    摘要翻译: 声波装置包括压电基板,具有设置在压电基板上方的梳状电极并激发声波的谐振器,以及设置在压电基板上方并与谐振器串联或并联连接的电容器,电容器 包括在压电基板上水平面对的电极。 与谐振器的梳状电极相比,电容器的电极比压电基片更远。

    Surface acoustic wave device with a thicker partial bus bar area and optimal bus bar to electrode tip gap
    10.
    发明授权
    Surface acoustic wave device with a thicker partial bus bar area and optimal bus bar to electrode tip gap 有权
    表面声波器件具有较厚的局部母线面积和最佳母线至电极尖端间隙

    公开(公告)号:US07170371B2

    公开(公告)日:2007-01-30

    申请号:US10823648

    申请日:2004-04-14

    IPC分类号: H03H9/64 H03H9/25

    摘要: Efficient transverse energy confinement, and provision of a surface acoustic wave filter having preferable characteristics of both insertion loss and shape factor are obtained. In the surface acoustic wave filter, electrode fingers of one comb electrode are laid in a state of being inserted to the electrode fingers of the other comb electrode, and a thick film thicker than each plurality of electrode fingers is produced in a partial area of the bus bar, and a tip gap is provided between the top of each plurality of electrode fingers and the end face of the opposed bus bar, with a distance therebetween set not greater than 0.2λ (where, λ is one period of the comb electrode).

    摘要翻译: 获得有效的横向能量限制,并且提供具有插入损耗和形状系数都优选的特性的表面声波滤波器。 在表面声波滤波器中,一个梳状电极的电极指状物被插入到另一梳状电极的电极指的状态,并且在该多个电极指的部分区域中产生厚于多个电极指的厚膜 汇流条,并且在每个多个电极指的顶部和相对的母线的端面之间设置有尖端间隙,其间的距离设置为不大于0.2λ(其中,λ是梳状电极的一个周期) 。