Waveguide and slotted antenna array with moveable rows of spaced posts
    1.
    发明授权
    Waveguide and slotted antenna array with moveable rows of spaced posts 失效
    波导和开槽天线阵列,具有可移动的间隔柱

    公开(公告)号:US07142165B2

    公开(公告)日:2006-11-28

    申请号:US10502858

    申请日:2003-01-23

    CPC classification number: H01P3/121 H01P1/2005 H01Q3/04 H01Q3/443 H01Q21/005

    Abstract: A waveguide structure including two parallels electrically conducting ground planes (1,2), each of which includes at least one row of spaced apart electrically conducting posts (3). The rows of posts are arranged substantially parallel to one another and the space bounded by the plates and posts defines a guided wave region (4) along which electromagnetic radiation may propagate. The posts are connected to only one of the planes so that there is no physical connection between the two ground planes (1,2). Actuating means may be connected to one or both of the ground planes to cause relative movement there between to thereby alter the electrical response of the waveguide. The direction of the relative movement may such that the distance between the rows of posts (3) is changed and/or the distance between the ground planes (1,2) is changed. Various device may utilize the described waveguide construction, including reconfigurable waveguide filters and antenna structures e.g. slotted waveguide arrays.

    Abstract translation: 一种波导结构,包括两个平行的导电接地平面(1,2),每个平面包括至少一排间隔开的导电柱(3)。 柱的排布置成基本上彼此平行,并且由板和柱限定的空间限定了电磁辐射沿着该区域传播的导波区域(4)。 这些柱只连接到一个平面,使得两个接地层之间没有物理连接(1,2)。 致动装置可以连接到一个或两个接地平面,以引起相互之间的相对运动,从而改变波导的电响应。 相对运动的方向可以使得柱(3)的行之间的距离改变和/或接地平面(1,2)之间的距离改变。 各种装置可以利用所描述的波导结构,包括可重新配置的波导滤波器和天线结构。 开槽波导阵列。

    ELECTROMAGNETIC WAVE POLARIZER SCREEN
    2.
    发明申请
    ELECTROMAGNETIC WAVE POLARIZER SCREEN 审中-公开
    电磁波极化屏

    公开(公告)号:US20130249755A1

    公开(公告)日:2013-09-26

    申请号:US13992628

    申请日:2011-12-02

    CPC classification number: H01Q15/244

    Abstract: A polarizer screen for a satellite communications terminal, comprising a plurality of layers separated by dielectric material, each layer having a grid of parallel metal strips and a periodic distribution of interleaved metal dipoles, wherein a first set of dipoles is arranged to be perpendicular to the metal strips and a second set of dipoles is arranged to be parallel to the metal strips such that any linearly polarized electromagnetic waves that pass through the screen are converted into orthogonal circular polarization in different frequency bands.

    Abstract translation: 一种用于卫星通信终端的偏振器屏幕,包括由电介质材料隔开的多个层,每个层具有平行的金属条格栅和交错的金属偶极子的周期性分布,其中第一组偶极子被布置成垂直于 金属条和第二组偶极子被布置为平行于金属条,使得通过屏幕的任何线性极化电磁波被转换成不同频带的正交圆偏振。

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