Filter using piezoelectric resonator
    13.
    发明授权
    Filter using piezoelectric resonator 失效
    使用压电谐振器滤波

    公开(公告)号:US07479847B2

    公开(公告)日:2009-01-20

    申请号:US11582425

    申请日:2006-10-18

    IPC分类号: H03H9/00 H03H9/54

    摘要: A series piezoelectric resonator 11 is connected in series between an input terminal 15a and an output terminal 15b. A first electrode of a parallel piezoelectric resonator 12a is connected to a connection point between the input terminal 15a and the series piezoelectric resonator 11, and a second electrode of the parallel piezoelectric resonator 12a is connected to a first terminal of an inductor 13a. A first electrode of a parallel piezoelectric resonator 12b is connected to a connection point between the series piezoelectric resonator 11 and the output terminal 15b, and a second electrode of the parallel piezoelectric resonator 12b is connected to a first terminal of an inductor 13b. Second terminals of the inductors 13a and 13b are grounded. An additional piezoelectric resonator 14 is connected between the second electrode of the parallel piezoelectric resonator 12a and the second electrode of the parallel piezoelectric resonator 12b.

    摘要翻译: 串联压电谐振器11串联连接在输入端子15a和输出端子15b之间。 平行压电谐振器12a的第一电极连接到输入端子15a和串联压电谐振器11之间的连接点,并联压电谐振器12a的第二电极连接到电感器13a的第一端子。 平行压电谐振器12b的第一电极连接到串联压电谐振器11和输出端子15b之间的连接点,并联压电谐振器12b的第二电极连接到电感器13b的第一端子。 电感器13a和13b的第二端接地。 另外的压电谐振器14连接在并联压电谐振器12a的第二电极和并联压电谐振器12b的第二电极之间。

    Balanced high-frequency device and balanced high-frequency circuit using the same
    14.
    发明申请
    Balanced high-frequency device and balanced high-frequency circuit using the same 有权
    平衡高频设备和平衡高频电路使用相同

    公开(公告)号:US20050212383A1

    公开(公告)日:2005-09-29

    申请号:US11059918

    申请日:2005-02-17

    摘要: A balanced high-frequency device includes a balanced element; at least one balanced terminal connected to the balanced element; a phase circuit having at least first, second, and third impedance elements, and electrically connected between the balanced element and the balanced terminal. The first impedance element and the second impedance element are connected between the balanced terminals in series, the connection point between the first impedance element and the second impedance element is grounded through the third impedance element, a series resonant circuit is formed by the first impedance element and the third impedance element. A series resonant circuit is formed by the second impedance element and the third impedance element, and an impedance to a differential signal component in the passing band of the balanced elements of the first and second impedance elements is set so as to increase to the ground plane.

    摘要翻译: 平衡式高频装置包括平衡元件; 连接到所述平衡元件的至少一个平衡端子; 具有至少第一,第二和第三阻抗元件的相电路,并且电连接在所述平衡元件和所述平衡端子之间。 第一阻抗元件和第二阻抗元件串联在平衡端子之间,第一阻抗元件和第二阻抗元件之间的连接点通过第三阻抗元件接地,串联谐振电路由第一阻抗元件 和第三阻抗元件。 串联谐振电路由第二阻抗元件和第三阻抗元件形成,并且对第一和第二阻抗元件的平衡元件的通带中的差分信号分量的阻抗设定为增加到接地面 。

    Filter using piezoelectric resonator
    16.
    发明授权
    Filter using piezoelectric resonator 失效
    使用压电谐振器滤波

    公开(公告)号:US07138888B2

    公开(公告)日:2006-11-21

    申请号:US10984839

    申请日:2004-11-10

    IPC分类号: H03H9/00

    CPC分类号: H03H9/605 H03H9/6433

    摘要: A series piezoelectric resonator is connected in series between an input terminal and an output terminal. A first electrode of a first parallel piezoelectric resonator is connected to a connection point between the input terminal and the series piezoelectric resonator, and a second electrode of the first parallel piezoelectric resonator is connected to a first terminal of a first inductor. A first electrode of a second parallel piezoelectric resonator is connected to a connection point between the series piezoelectric resonator and the output terminal, and a second electrode of the second parallel piezoelectric resonator is connected to a first terminal of a second inductor. Second terminals of the first and second inductors are grounded. An additional piezoelectric resonator is connected between the second electrode of the first parallel piezoelectric resonator and the second electrode of the second parallel piezoelectric resonator.

    摘要翻译: 串联压电谐振器串联连接在输入端和输出端之间。 第一并联压电谐振器的第一电极连接到输入端子和串联压电谐振器之间的连接点,并且第一并联压电谐振器的第二电极连接到第一电感器的第一端子。 第二并联压电谐振器的第一电极连接到串联压电谐振器和输出端之间的连接点,第二并联压电谐振器的第二电极连接到第二电感器的第一端。 第一和第二电感器的第二端子接地。 附加的压电谐振器连接在第一并联压电谐振器的第二电极和第二并联压电谐振器的第二电极之间。

    Filter using piezoelectric resonator
    17.
    发明申请
    Filter using piezoelectric resonator 失效
    使用压电谐振器滤波

    公开(公告)号:US20050110596A1

    公开(公告)日:2005-05-26

    申请号:US10984839

    申请日:2004-11-10

    CPC分类号: H03H9/605 H03H9/6433

    摘要: A series piezoelectric resonator 11 is connected in series between an input terminal 15a and an output terminal 15b. A first electrode of a parallel piezoelectric resonator 12a is connected to a connection point between the input terminal 15a and the series piezoelectric resonator 11, and a second electrode of the parallel piezoelectric resonator 12a is connected to a first terminal of an inductor 13a. A first electrode of a parallel piezoelectric resonator 12b is connected to a connection point between the series piezoelectric resonator 11 and the output terminal 15b, and a second electrode of the parallel piezoelectric resonator 12b is connected to a first terminal of an inductor 13b. Second terminals of the inductors 13a, 13b are grounded. An additional piezoelectric resonator 14 is connected between the second electrode of the parallel piezoelectric resonator 12a and the second electrode of the parallel piezoelectric resonator 12b.

    摘要翻译: 串联压电谐振器11串联连接在输入端子15a和输出端子15b之间。 平行压电谐振器12a的第一电极连接到输入端子15a和串联压电谐振器11之间的连接点,并联压电谐振器的第二电极连接到电感器13的第一端子 一个。 平行压电谐振器12b的第一电极连接到串联压电谐振器11和输出端子15b之间的连接点,并联压电谐振器12b的第二电极连接到电感器13的第一端子 b。 电感器13a,13b的第二端接地。 并联压电谐振器12a的第二电极和并联压电谐振器12b的第二电极之间连接有一个附加的压电谐振器14。

    Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus
    19.
    发明授权
    Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus 有权
    平衡高频滤波器,天线双工器,平衡高频电路和通信设备

    公开(公告)号:US07224240B2

    公开(公告)日:2007-05-29

    申请号:US11078793

    申请日:2005-03-11

    IPC分类号: H03H9/68 H03H7/42

    摘要: With an antenna duplexer having balanced terminals, there has been a problem that the amount of leakage of common-mode signal components in the balanced terminals is large. A balanced high-frequency filter designed to solve this problem comprises a balanced high-frequency element and a phase-shifting circuit which includes a transmission line and placed between output terminals, and which is series resonance circuit having a length set to λT/2 (λT: the wavelength at a frequency in a transmission frequency band) and capable of resonating with common-mode signal components at a predetermined frequency.

    摘要翻译: 对于具有平衡端子的天线双工器,存在平衡端子中的共模信号分量的泄漏量大的问题。 设计用于解决这个问题的平衡式高频滤波器包括一个平衡的高频元件和一个包括传输线并置于输出端之间的移相电路,并且是串联谐振电路,其长度设定为λ< Tλ/ 2(λT是发送频带中的频率处的波长),并且能够以预定频率与共模信号分量谐振。

    Filter using piezoelectric resonator
    20.
    发明申请
    Filter using piezoelectric resonator 失效
    使用压电谐振器滤波

    公开(公告)号:US20070109073A1

    公开(公告)日:2007-05-17

    申请号:US11582425

    申请日:2006-10-18

    IPC分类号: H03H9/70 H03H9/58

    摘要: A series piezoelectric resonator 11 is connected in series between an input terminal 15a and an output terminal 15b. A first electrode of a parallel piezoelectric resonator 12a is connected to a connection point between the input terminal 15a and the series piezoelectric resonator 11, and a second electrode of the parallel piezoelectric resonator 12a is connected to a first terminal of an inductor 13a. A first electrode of a parallel piezoelectric resonator 12b is connected to a connection point between the series piezoelectric resonator 11 and the output terminal 15b, and a second electrode of the parallel piezoelectric resonator 12b is connected to a first terminal of an inductor 13b. Second terminals of the inductors 13a and 13b are grounded. An additional piezoelectric resonator 14 is connected between the second electrode of the parallel piezoelectric resonator 12a and the second electrode of the parallel piezoelectric resonator 12b.

    摘要翻译: 串联压电谐振器11串联连接在输入端子15a和输出端子15b之间。 平行压电谐振器12a的第一电极连接到输入端子15a和串联压电谐振器11之间的连接点,并联压电谐振器的第二电极连接到电感器13的第一端子 一个。 平行压电谐振器12b的第一电极连接到串联压电谐振器11和输出端子15b之间的连接点,并联压电谐振器12b的第二电极连接到电感器13的第一端子 b。 电感器13a和13b的第二端接地。 并联压电谐振器12a的第二电极和并联压电谐振器12b的第二电极之间连接有一个附加的压电谐振器14。