Dual-circular polarized antenna system

    公开(公告)号:US11171401B2

    公开(公告)日:2021-11-09

    申请号:US16706063

    申请日:2019-12-06

    Applicant: Viasat, Inc.

    Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.

    Hemispherical azimuth and elevation positioning platform

    公开(公告)号:US09917362B2

    公开(公告)日:2018-03-13

    申请号:US14803310

    申请日:2015-07-20

    Applicant: ViaSat, Inc.

    CPC classification number: H01Q3/08 F16M11/10 F16M11/18 F16M11/2014 H01Q1/42

    Abstract: An antenna positioner, and methods of positioning using the antenna positioner, that may track a satellite are described. An antenna positioner may include a base and a mount rotatably coupled to the base to turn the mount about an azimuth axis. The mount may support an antenna element so that the antenna element can rotate about the elevation axis with respect to the mount. A center drive shaft for the elevation drive may pass through the hollow portion of the mount along the azimuth axis to drive a bevel gear set, a first gear of the set being coupled to the drive shaft and a second gear of the set being coupled to the antenna element, to rotate the antenna element about the elevation axis. Drive compensation is provided to counteract elevation rotation resulting from cross-coupling of the azimuth and elevation axes by the bevel gear set during azimuth rotation.

    Dual-circular polarized antenna system

    公开(公告)号:US11101537B2

    公开(公告)日:2021-08-24

    申请号:US16706051

    申请日:2019-12-06

    Applicant: Viasat, Inc.

    Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.

    DUAL-CIRCULAR POLARIZED ANTENNA SYSTEM
    7.
    发明申请

    公开(公告)号:US20200185807A1

    公开(公告)日:2020-06-11

    申请号:US16706051

    申请日:2019-12-06

    Applicant: Viasat, Inc.

    Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.

    HEMISPHERICAL AZIMUTH AND ELEVATION POSITIONING PLATFORM
    8.
    发明申请
    HEMISPHERICAL AZIMUTH AND ELEVATION POSITIONING PLATFORM 有权
    HEMISPHERICAL AZIMUTH和ELEVATION定位平台

    公开(公告)号:US20170025752A1

    公开(公告)日:2017-01-26

    申请号:US14803310

    申请日:2015-07-20

    Applicant: ViaSat, Inc.

    CPC classification number: H01Q3/08 F16M11/10 F16M11/18 F16M11/2014 H01Q1/42

    Abstract: An antenna positioner, and methods of positioning using the antenna positioner, that may track a satellite are described. An antenna positioner may include a base and a mount rotatably coupled to the base to turn the mount about an azimuth axis. The mount may support an antenna element so that the antenna element can rotate about the elevation axis with respect to the mount. A center drive shaft for the elevation drive may pass through the hollow portion of the mount along the azimuth axis to drive a bevel gear set, a first gear of the set being coupled to the drive shaft and a second gear of the set being coupled to the antenna element, to rotate the antenna element about the elevation axis. Drive compensation is provided to counteract elevation rotation resulting from cross-coupling of the azimuth and elevation axes by the bevel gear set during azimuth rotation.

    Abstract translation: 描述了可以跟踪卫星的天线定位器和使用天线定位器的定位方法。 天线定位器可以包括基座和可旋转地联接到基座的安装件,以使安装件绕方位轴线转动。 安装件可以支撑天线元件,使得天线元件可以相对于安装座绕高度轴线旋转。 用于升降驱动器的中心驱动轴可以沿着方位轴线穿过底座的中空部分以驱动锥齿轮组,该组的第一齿轮联接到驱动轴,并且该组的第二齿轮联接到 天线元件,以围绕仰角旋转天线元件。 提供驱动补偿以抵消在方位旋转期间由锥齿轮组交叉耦合方位角和仰角所引起的仰角旋转。

    DUAL-CIRCULAR POLARIZED ANTENNA SYSTEM
    9.
    发明申请

    公开(公告)号:US20200185808A1

    公开(公告)日:2020-06-11

    申请号:US16706063

    申请日:2019-12-06

    Applicant: Viasat, Inc.

    Abstract: In an example embodiment, an azimuth combiner comprises: a septum layer comprising a plurality of septum dividers; first and second housing layers attached to first and second sides of the septum layer; a linear array of ports on a first end of the combiner; wherein the first and second housing layers each comprise waveguide H-plane T-junctions; wherein the waveguide T-junctions can be configured to perform power dividing/combining; and wherein the septum layer evenly bisects each port of the linear array of ports. A stack of such azimuth combiners can form a two dimensional planar array of ports to which can be added a horn aperture layer, and a grid layer, to form a dual-polarized, dual-BFN, dual-band antenna array.

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