利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

38 条记录 (耗时 0.021 秒)

    Serially-fed phased array antennas with dielectric phase shifters
    1.
    发明授权
    Serially-fed phased array antennas with dielectric phase shifters 有权
    具有介质移相器的串联相控阵天线

    公开(公告)号：US06377217B1

    公开(公告)日：2002-04-23

    申请号：US09660719

    申请日：2000-09-13

    申请人： Yongfei Zhu ,  Louise C. Sengupta ,  Andrey Kozyrev ,  Xubai Zhang

    发明人： Yongfei Zhu ,  Louise C. Sengupta ,  Andrey Kozyrev ,  Xubai Zhang

    IPC分类号： H01Q138

    CPC分类号： H01Q3/36 ,  H01P1/181 ,  H01Q21/0075 ,  H01Q21/065

    摘要： A phased array antenna includes a plurality of radiating elements, a feed line assembly, a ground plane positioned between the plurality of radiating elements and the feed line assembly, with the ground plane having a plurality of openings positioned between the plurality of radiating elements and the feed line assembly, and a plurality of voltage tunable dielectric phase shifters coupled to the feed line assembly.

    摘要翻译： 相控阵天线包括多个辐射元件，馈线组件，位于多个辐射元件和馈线组件之间的接地平面，其中接地平面具有位于多个辐射元件之间的多个开口和 馈电线组件以及耦合到馈电线组件的多个电压可调电介质移相器。

    Voltage tunable reflective coplanar phase shifters
    3.
    发明授权
    Voltage tunable reflective coplanar phase shifters 有权
    电压可调谐反射共面相移器

    公开(公告)号：US07154357B2

    公开(公告)日：2006-12-26

    申请号：US11008536

    申请日：2004-12-09

    申请人： Andrey Kozyrev ,  Louise C. Sengupta ,  Yongfei Zhu

    发明人： Andrey Kozyrev ,  Louise C. Sengupta ,  Yongfei Zhu

    IPC分类号： H01P1/18

    CPC分类号： H01P1/181

    摘要： A phase shifter includes a substrate, a tunable dielectric film having a dielectric constant between 70 to 600, a tuning range of 20 to 60%, and a loss tangent between 0.008 to 0.03 at K and Ka bands positioned on a surface of the substrate, a coplanar waveguide positioned on a surface of the tunable dielectric film opposite the substrate, an input for coupling a radio frequency signal to the coplanar waveguide, an output for receiving the radio frequency signal from the coplanar waveguide, and a connection for applying a control voltage to the tunable dielectric film. A reflective termination coplanar waveguide phase shifter including a substrate, a tunable dielectric film having a dielectric constant between 70 to 600, a tuning range of 20 to 60%, and a loss tangent between 0.008 to 0.03 at K and Ka bands positioned on a surface of the substrate, first and second open ended coplanar waveguides positioned on a surface of the tunable dielectric film opposite the substrate, microstrip line for coupling a radio frequency signal to and from the first and second coplanar waveguides, and a connection for applying a control voltage to the tunable dielectric film.

    摘要翻译： 移相器包括基板，介电常数在70至600之间的调谐电介质膜，20至60％的调谐范围以及位于基板表面上的K和Ka波段的0.008至0.03之间的损耗角正切， 位于与衬底相对的可调电介质膜的表面上的共面波导，用于将射频信号耦合到共面波导的输入端，用于从共面波导接收射频信号的输出端以及用于施加控制电压的连接 到可调电介质膜。 一种反射式终端共面波导相移器，包括基底，介电常数在70至600之间的可调电介质膜，调谐范围为20至60％，损耗角正切为0.008至0.03，位于表面的K和Ka波段 位于可调电介质膜的与衬底相对的表面上的第一和第二开口共面波导，用于将射频信号耦合到第一和第二共面波导的微带线以及用于施加控制电压的连接 到可调电介质膜。

    Electrically tunable filters with dielectric varactors
    4.
    发明授权
    Electrically tunable filters with dielectric varactors 有权
    带电介质变压器的电可调滤波器

    公开(公告)号：US07145415B2

    公开(公告)日：2006-12-05

    申请号：US10979001

    申请日：2004-11-01

    申请人： Louise C. Sengupta ,  Steven C. Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna H. Chiu ,  Xubai Zhang

    发明人： Louise C. Sengupta ,  Steven C. Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna H. Chiu ,  Xubai Zhang

    IPC分类号： H03H7/01

    CPC分类号： H01P1/20

    摘要： This invention provides a voltage tunable filter comprising an input connection point, an output connection point, and at least one circuit branch electrically coupled to the input connection point and the output connection point and including a voltage tunable dielectric varactor electrically connected to an inductor. The voltage tunable filter can be one of a low-pass, high-pass, band-pass, or band-stop filter. The varactor can include built-in DC blocking capacitors.

    摘要翻译： 本发明提供了一种电压可调谐滤波器，包括输入连接点，输出连接点和电耦合到输入连接点和输出连接点的至少一个电路支路，并且包括电连接到电感器的电压可调介质变容二极管。 电压可调滤波器可以是低通，高通，带通或带阻滤波器之一。 变容二极管可以包括内置的直流阻塞电容器。

    Dielectric varactors with offset two-layer electrodes
    8.
    发明授权
    Dielectric varactors with offset two-layer electrodes 有权
    具有偏移的两层电极的介电变容二极管

    公开(公告)号：US06377440B1

    公开(公告)日：2002-04-23

    申请号：US09660309

    申请日：2000-09-12

    申请人： Yongfei Zhu ,  Louise C. Sengupta ,  Xubai Zhang

    发明人： Yongfei Zhu ,  Louise C. Sengupta ,  Xubai Zhang

    IPC分类号： H01G406

    CPC分类号： H01L27/0808 ,  Y10T29/417

    摘要： A varactor comprising a substrate, a first conductor positioned on a surface of the substrate, a second conductor positioned on the surface of the substrate forming a gap between the first and second conductors, a tunable dielectric material positioned on the surface of the substrate and within the gap, the tunable dielectric material having a top surface, with at least a portion of said top surface being positioned above the gap opposite the surface of the substrate, and a first portion of the second conductor extending along at least a portion of the top surface of the tunable dielectric material. The second conductor can overlap or not overlap a portion of the first conductor.

    摘要翻译： 一种变容二极管，包括衬底，位于衬底的表面上的第一导体，位于衬底的表面上的第二导体，形成第一和第二导体之间的间隙，位于衬底的表面上的可调电介质材料， 所述间隙，所述可调电介质材料具有顶表面，所述顶表面的至少一部分位于与所述基底的表面相对的间隙之上，并且所述第二导体的第一部分沿着所述顶部的至少一部分延伸 可调电介质材料的表面。 第二导体可以与第一导体的一部分重叠或不重叠。

    Voltage tunable varactors and tunable devices including such varactors
    9.
    发明授权
    Voltage tunable varactors and tunable devices including such varactors 有权
    电压可调变容二极管和包括这种变容二极管的可调谐装置

    公开(公告)号：US06686814B2

    公开(公告)日：2004-02-03

    申请号：US10223745

    申请日：2002-08-19

    申请人： Luna H. Chiu ,  Yongfei Zhu ,  Xubai Zhang ,  Steven C. Stowell ,  Andrey Kozyrev ,  Somnath Sengupta ,  Louise Sengupta

    发明人： Luna H. Chiu ,  Yongfei Zhu ,  Xubai Zhang ,  Steven C. Stowell ,  Andrey Kozyrev ,  Somnath Sengupta ,  Louise Sengupta

    IPC分类号： H01P118

    CPC分类号： H01P1/2016 ,  H01P1/181

    摘要： A voltage tunable dielectric varactor includes a substrate having a low dielectric constant and having generally planar surface, a tunable ferroelectric layer positioned on the generally planar surface of the substrate, and first and second electrodes positioned on a surface of the tunable ferroelectric layer opposite the generally planar surface of the substrate. The first and second electrodes are separated to form a gap therebetween. The varactor includes an input for receiving a radio frequency signal and an output for delivering the radio frequency signal. A bias voltage applied to the electrodes changes the capacitance of the varactor between the input and output thereof. Phase shifters and filters that include the varactor are also described.

    摘要翻译： 电压可调介质变容二极管包括具有低介电常数且具有大体上平坦表面的基板，位于基板的大体平坦表面上的可调铁电层，以及位于可调谐铁电层的表面上的第一和第二电极， 基板的平面。 分离第一和第二电极以在它们之间形成间隙。 变容二极管包括用于接收射频信号的输入和用于传送射频信号的输出。 施加到电极的偏置电压改变变容二极管的输入和输出之间的电容。 还描述了包括变容二极管的移相器和滤波器。