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235 条记录 (耗时 0.142 秒)

    Line-doubler delay circuit
    1.
    发明授权
    Line-doubler delay circuit 失效
    线倍增延迟电路

    公开(公告)号：US07224244B2

    公开(公告)日：2007-05-29

    申请号：US10947793

    申请日：2004-09-23

    申请人： Michael J. Drapac ,  Nicolas J. Schaub

    发明人： Michael J. Drapac ,  Nicolas J. Schaub

    IPC分类号： H01P5/12 ,  H01P5/18 ,  H03H9/36

    CPC分类号： H04B1/525 ,  H01P9/00 ,  H04B1/1036

    摘要： The length of a transmission line delay circuit is halved by inserting a directional coupler in the signal path ahead of the transmission line and either open circuiting or short circuiting the other end of the transmission line. The signal traveling through the directional coupler and through the transmission line is reflected back at the end of the transmission line, and the reflected signal is carried to the coupled output of the directional coupler. Since the signal travels through the transmission line twice, the delay time is doubled. Therefore, for a given delay requirement, the length of transmission line required is only half of the length required for prior art transmission delay lines.

    摘要翻译： 传输线延迟电路的长度通过在定向耦合器插入传输线之前的信号路径中而使传输线的另一端开路或短路而减半。 通过定向耦合器和传输线路传播的​​信号在传输线路的末端被反射回来，反射信号被传送到定向耦合器的耦合输出端。 由于信号通过传输线两次，延迟时间增加一倍。 因此，对于给定的延迟要求，所需的传输线的长度仅为现有技术的传输延迟线所需长度的一半。

    Ultrasonic delay line mounted in a frame-like body having a wiring pattern thereon
    3.
    发明授权
    Ultrasonic delay line mounted in a frame-like body having a wiring pattern thereon 失效
    超声波延迟线安装在具有线路图案的框架式机身中

    公开(公告)号：US5130679A

    公开(公告)日：1992-07-14

    申请号：US653751

    申请日：1991-02-11

    申请人： Haruto Hashimoto ,  Etsuji Kimura ,  Yutaka Igarashi

    发明人： Haruto Hashimoto ,  Etsuji Kimura ,  Yutaka Igarashi

    IPC分类号： H03H9/36

    CPC分类号： H03H9/36

    摘要： An ultrasonic delay line comprises a delay medium provided with transducers on at least a side surface thereof, an insulating substrate having a frame-like body in which a wiring pattern is print-formed and an opening having substantially the same shape as the outer configuration of the delay medium, the delay medium being fitted in the opening so that an electrode of the transducer is electrically connectable with the wiring pattern, and a packaging member covering at least a part of major surfaces of the insulating substrate and the delay medium so as to secure the two.

    摘要翻译： 超声波延迟线包括在其至少一个侧表面上设置有换能器的延迟介质，具有框架体的绝缘基板，其中布线图案被印刷形成，并且具有与外部构造基本相同形状的开口 所述延迟介质，所述延迟介质装配在所述开口中，使得所述换能器的电极可与所述布线图案电连接;以及封装构件，其覆盖所述绝缘基板和所述延迟介质的至少一部分主表面，从而 确保两者。

    Wide band bulk acoustic wave delay line
    4.
    发明授权
    Wide band bulk acoustic wave delay line 失效
    宽带体声波延迟线

    公开(公告)号：US4016512A

    公开(公告)日：1977-04-05

    申请号：US619096

    申请日：1975-10-02

    申请人： Michael T. Wauk, II

    发明人： Michael T. Wauk, II

    IPC分类号： H03H9/36 ,  H03H9/30 ,  H01L41/10 ,  H01L41/18

    CPC分类号： H03H9/36

    摘要： A bulk acoustic wave delay line including a body of acoustic wave supporting material and having at least one planar surface capable of reversably converting longitudinal wave mode acoustic energy to shear wave mode acoustic energy, the delay line also including at least one transducer for converting electromagnetic wave energy to acoustic wave energy and vice versa for propagating said acoustic wave energy along a path, a major portion of which supports shear wave mode energy and which path is at least partially defined by the mode converting planar surface, the planar surface being treated to increase the attenuation of propagating acoustic wave energy thereat by a predetermined amount, the attenuation provided at said planar surface being relatively frequency independent as compared to the attenuation per unit time of the propagating acoustic wave energy in the delay line body whereby triple transit signal suppression is significantly increased while still maintaining a relatively wide band frequency response.

    摘要翻译： 一种体声波延迟线，包括声波支撑材料体并且具有能够将纵波模式声能可逆地转换成剪切波模式声能的至少一个平面，所述延迟线还包括至少一个用于转换电磁波的换能器 能量到声波能量，反之亦然，用于沿着路径传播所述声波能量，其大部分支持剪切波模式能量，并且哪个路径至少部分地由模式转换平面表面限定，待处理的平面表面增加 传播声波能量衰减预定量时，与延迟线体中传播的声波能量的每单位时间的衰减相比，在所述平面处提供的衰减相对频率无关，从而三重转接信号抑制显着 增加，同时仍然保持相对较低 ide频段响应。

    Microwave bulk acoustic delay device having two transducers on the same surface and method of making same
    5.
    发明授权
    Microwave bulk acoustic delay device having two transducers on the same surface and method of making same 失效
    具有相同表面上的两个换能器的微波体声声延迟装置及其制造方法

    公开(公告)号：US3996535A

    公开(公告)日：1976-12-07

    申请号：US594236

    申请日：1975-07-09

    申请人： Zygmond Turski

    发明人： Zygmond Turski

    IPC分类号： H03H9/36 ,  H03H9/30 ,  H01L41/08 ,  H01L41/18 ,  H01L41/22

    CPC分类号： H03H9/36 ,  Y10T29/42

    摘要： A wafer of lithium niobate metallized on both major surfaces is bonded to a magnesium aluminate spinel bulk acoustic delay line. The lithium niobate layer is divided into two separate electrically and mechanically isolated transducers using ion beam milling. The bulk acoustic delay line has a surface arranged to reflect a propagating acoustic wave generated by one of the divided transducers to the other of the transducers, the one transducer serving as an input and the other as an output. The acoustic delay line is suitable for broad band operation at microwave frequencies with at least 50 db isolation between the two ports.

    摘要翻译： 在两个主表面上金属化的铌酸锂晶片被结合到铝酸镁尖晶石体声延迟线。 使用离子束铣削将铌酸锂层分成两个单独的电和机械隔离的换能器。 体声声延迟线具有布置成将由分离换能器中的一个产生的传播声波反射到另一个换能器的表面，一个换能器用作输入，另一个用作输出。 声学延迟线适用于微波频段的宽带操作，两个端口之间至少有50db隔离。

    Elastic waveguide utilizing an enclosed core member
    6.
    发明授权
    Elastic waveguide utilizing an enclosed core member 失效
    弹性波导使用封闭的芯构件

    公开(公告)号：US3922622A

    公开(公告)日：1975-11-25

    申请号：US49664574

    申请日：1974-08-12

    申请人： BELL TELEPHONE LABOR INC

    发明人： BOYD GARY DELANE ,  COLDREN LARRY ALLEN

    IPC分类号： H03H9/42 ,  G10K11/24 ,  H03H9/30 ,  H03H9/36

    CPC分类号： G10K11/24 ,  H03H9/36

    摘要： Guided elastic waves are propagated in a waveguide, including a central core region and an outer cladding region. The bulk shear elastic wave velocity in the cladding region is larger than in the core region. The thickness of the cladding region is sufficient so that the particle displacement profile falls nearly to zero before reaching the outer surface of the cladding region. The waveguide is mounted in any suitable medium for protecting it against external mechanical shock and for providing any necessary mechanical support therefor. Different guide configurations and both torsional mode and radial mode transducers are shown.

    摘要翻译： 引导弹性波在包括中心芯区域和外包层区域的波导中传播。 包层区域的体积剪切弹性波速度大于核心区域。 包层区域的厚度足以使粒子位移分布在到达包层区域的外表面之前几乎下降到零。 波导安装在任何合适的介质中，用于保护波导免受外部机械冲击并提供任何必要的机械支撑。 示出了不同的引导配置以及扭转模式和径向模式换能器。

    Ultrasonic delay line
    8.
    发明授权
    Ultrasonic delay line 失效
    超声波延迟线

    公开(公告)号：US3798577A

    公开(公告)日：1974-03-19

    申请号：US3798577D

    申请日：1972-05-15

    申请人： MATSUSHITA ELECTRIC IND CO LTD

    发明人： KASAHARA Y ,  IGUCHI T ,  MIKODA M ,  UENO I

    IPC分类号： H03H9/36 ,  H03H9/30

    CPC分类号： H03H9/36

    摘要： An ultrasonic delay line having an ultrasonic beam path with a plurality, preferably seven, reflection points, and comprising a body of lead silicate glass and a transmitting transducer and a receiving transducer. The body has top and bottom major surfaces substantially parallel to each other, first and second side surfaces which are substantially rectangular in shape and substantially at right angles to the top and bottom major surfaces, a third side surface substantially at a right angle to both the top major surface and the first side surface, a fourth side surface which is substantially at an angle of 135* to the first side surface and supporting either the transmitting transducer or the receiving transducer thereon, and a fifth side surface substantially at an angle of 135* to the second side surface and supporting the other of the transmitting and the receiving transducers thereon. In the preferred form, the medium has a shape such that the length of the first and second side surfaces is about three times the length of the third side surface. The medium may have, at a portion adjacent the ultrasonic beam path, at least one hole and at least one diffusion layer zone which has a lower mechanical Q than that of the ultrasonic beam path, and said hole may have an inner wall provided with an ultrasonic adsorber.

    摘要翻译： 一种超声波延迟线，其具有具有多个优选七个反射点的超声波束路径，并且包括硅酸铅玻璃体和发射换能器以及接收换能器。 主体具有基本上彼此平行的顶部和底部主表面，第一和第二侧表面基本上矩形形状并且基本上与顶部和底部主表面成直角;第三侧表面基本上与两个 上表面和第一侧表面，第四侧表面基本上与第一侧表面成135度的角度，并且支撑发送换能器或其上的接收换能器，以及基本上以135度的角度支撑第五侧表面 DEG到第二侧表面，并且在其上支撑发射和接收换能器中的另一个。 在优选形式中，介质具有使得第一和第二侧表面的长度为第三侧表面的长度的三倍的形状。 介质可以在与超声波束路径相邻的部分处具有至少一个孔和至少一个具有比超声波束路径更低的机械Q的扩散层区域，并且所述孔可以具有设置有 超声波吸附器。