Array antenna
    12.
    发明授权

    公开(公告)号:US10020594B2

    公开(公告)日:2018-07-10

    申请号:US15331353

    申请日:2016-10-21

    IPC分类号: H01Q21/00

    摘要: Disclosed herein is an array antenna in which a plurality of radiating elements is arranged. The array antenna includes: a first layer comprising a first substrate forming an upper portion of the array antenna and a plurality of radiating elements disposed on the first substrate; a second layer comprising a second substrate forming a lower portion of the array antenna and a feedline disposed on the second substrate to supply output power to the plurality of radiating elements; and a third layer formed between the first layer and the second layer and comprising a ground plane and an aperture slot formed through the ground plane.

    COMPACT WAVEGUIDE POWER COMBINER/DIVIDER FOR DUAL-POLARIZED ANTENNA ELEMENTS

    公开(公告)号:US20180123258A1

    公开(公告)日:2018-05-03

    申请号:US15845780

    申请日:2017-12-18

    申请人: ViaSat, Inc.

    IPC分类号: H01Q13/18 H01Q21/24 H01Q21/00

    摘要: A waveguide architecture for a dual-polarized antenna including multiple antenna elements. Aspects are directed to dual-polarized antenna architectures where each antenna element includes a polarizer having an individual waveguide with dual-polarization signal propagation and divided waveguides associated with each basis polarization. The waveguide architecture may include unit cells having corporate waveguide networks associated with each basis polarization connecting each divided waveguide of the polarizers of each antenna element in the unit cell with a respective common waveguide. The waveguide networks may have waveguide elements located within the unit-cell boundary with a small or minimized inter-element distance. Thus, unit cells may be positioned adjacent to each other in a waveguide device assembly for a dual-polarized antenna array without increased inter-element distance between antenna elements of adjacent unit cells. Antenna waveguide ports may be connected to unit cell common waveguides using elevation and azimuth waveguide networks of the corporate type.

    BEAM FORMING NETWORK AND BASE STATION ANTENNA

    公开(公告)号:US20170141481A1

    公开(公告)日:2017-05-18

    申请号:US15416941

    申请日:2017-01-26

    摘要: Embodiments of the present invention provide a beam forming network, including: a first 180-degree bridge for equal-power division, a 180-degree bridge for unequal-power division, a 90-degree phase shifter, and a second 180-degree bridge for equal-power division. A coupling port of a sum input port of the first 180-degree bridge for equal-power division is connected to a difference input port of the 180-degree bridge for unequal-power division, a straight-through port of the sum input port of the first 180-degree bridge for equal-power division is connected to an input port of the 90-degree phase shifter, an output port of the 90-degree phase shifter is connected to a difference input port of the second 180-degree bridge for equal-power division, and a straight-through port of a sum input port of the 180-degree bridge for unequal-power division is connected to a sum input port of the second 180-degree bridge for equal-power division.

    ARRAY ANTENNA
    18.
    发明申请

    公开(公告)号:US20170117638A1

    公开(公告)日:2017-04-27

    申请号:US15331353

    申请日:2016-10-21

    IPC分类号: H01Q21/00

    摘要: Disclosed herein is an array antenna in which a plurality of radiating elements is arranged. The array antenna includes: a first layer comprising a first substrate forming an upper portion of the array antenna and a plurality of radiating elements disposed on the first substrate; a second layer comprising a second substrate forming a lower portion of the array antenna and a feedline disposed on the second substrate to supply output power to the plurality of radiating elements; and a third layer formed between the first layer and the second layer and comprising a ground plane and an aperture slot formed through the ground plane.

    PARTIALLY DIELECTRIC LOADED ANTENNA ELEMENTS FOR DUAL-POLARIZED ANTENNA
    19.
    发明申请
    PARTIALLY DIELECTRIC LOADED ANTENNA ELEMENTS FOR DUAL-POLARIZED ANTENNA 有权
    用于双极天线的部分电介质负载天线元件

    公开(公告)号:US20170069972A1

    公开(公告)日:2017-03-09

    申请号:US14849437

    申请日:2015-09-09

    申请人: ViaSat, Inc.

    IPC分类号: H01Q13/02

    摘要: A partially dielectric loaded divided horn waveguide device for a dual-polarized antenna is described. The partially dielectric loaded divided horn waveguide device may include a polarizer, a waveguide horn, multiple individual waveguides dividing a horn port of the waveguide horn, and multiple dielectric elements partially filling the individual waveguides. The dielectric elements may include a dielectric member extending along a corresponding individual waveguide and one or more matching features for matching signal propagation between the partially dielectric loaded individual waveguides and free space. Various components of the partially dielectric loaded divided horn waveguide device may be tuned for enhanced signal propagation between the waveguide horn and the individual waveguides, and between the individual waveguides and free space.

    摘要翻译: 描述了一种用于双极化天线的部分介电负载分离喇叭波导装置。 部分介电加载的分开的喇叭波导装置可以包括偏振器,波导喇叭,分隔波导喇叭的喇叭口的多个单独波导和部分填充各个波导的多个电介质元件。 电介质元件可以包括沿对应的单独波导延伸的电介质元件和一个或多个匹配特征,用于匹配部分介电负载的单个波导与自由空间之间的信号传播。 可以调整部分介电负载分离喇叭波导装置的各种部件,以增强波导喇叭和各个波导之间的信号传播,以及各个波导与自由空间之间的信号传播。

    Apparatus and method of a dual polarized broadband agile cylindrical antenna array with reconfigurable radial waveguides
    20.
    发明授权
    Apparatus and method of a dual polarized broadband agile cylindrical antenna array with reconfigurable radial waveguides 有权
    具有可重构径向波导的双极化宽带敏捷圆柱形天线阵列的装置和方法

    公开(公告)号:US09502765B2

    公开(公告)日:2016-11-22

    申请号:US14319981

    申请日:2014-06-30

    摘要: Embodiments are provided for an agile antenna that beamsteers radio frequency (RF) signals by selectively activating/de-activating tunable elements on radial-waveguides using direct current (DC) switches. The antenna comprises two parallel radial waveguide structures, each comprising a first radial plate, a second radial plate in parallel with the first radial plate, and conductive elements positioned vertically and distributed radially between the two plates. The radial waveguide structure further includes a plurality of quarter RF chokes which are connected to the conductive elements via respective micro-strips and tunable elements. The two parallel radial plates are separated by a height determined according to a desired transmission frequency range for RF signals, a length of the micro-strips, a diameter of the conductive elements, and a clearance space around each one of the conductive elements.

    摘要翻译: 提供实施例用于通过使用直流(DC)开关选择性地激活/去激励径向波导上的可调谐元件来横向射频(RF)信号的敏捷天线。 天线包括两个平行的径向波导结构,每个平行的径向波导结构包括第一径向板,与第一径向板平行的第二径向板,以及垂直定位并分布在两个板之间的导电元件。 径向波导结构还包括多个四分之一的RF扼流圈,其通过相应的微带和可调谐元件连接到导电元件。 两个平行的径向板被分离为根据RF信号的期望的传输频率范围确定的高度,微条的长度,导电元件的直径以及每个导电元件周围的间隙空间。