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    Empirically modulated antenna systems and related methods
    1.
    发明授权
    Empirically modulated antenna systems and related methods 有权

    公开(公告)号：US11075702B2

    公开(公告)日：2021-07-27

    申请号：US16854416

    申请日：2020-04-21

    申请人： Searete LLC

    发明人： Eric J. Black ,  Brian Mark Deutsch ,  Alexander Remley Katko ,  Melroy Machado ,  Jay Howard McCandless ,  Yaroslav A. Urzhumov

    IPC分类号： H04B1/00 ,  H04B17/12 ,  H01Q13/20 ,  H01Q15/00 ,  H01Q21/06 ,  H04B17/14 ,  H04B17/318 ,  H04B17/391 ,  H01Q25/00 ,  H04B1/7113

    摘要： Empirically modulated antenna systems and related methods are disclosed herein. An empirically modulated antenna system includes an antenna and a controller programmed to control the antenna. The antenna includes a plurality of discrete scattering elements arranged in a one- or two-dimensional arrangement. A method includes modulating operational states of at least a portion of a plurality of discrete scattering elements of the antenna in a plurality of different modulation patterns. The plurality of different modulation patterns includes different permutations of the discrete scattering elements operating in different operational states. The method also includes evaluating a performance parameter of the antenna responsive to the plurality of different empirical one- or two-dimensional modulation patterns. The method further includes operating the antenna in one of the plurality of different one- or two-dimensional empirical modulation patterns selected based, at least in part, on the performance parameter.

    Antenna systems and related methods for selecting modulation patterns based at least in part on spatial holographic phase
    2.
    发明授权
    Antenna systems and related methods for selecting modulation patterns based at least in part on spatial holographic phase 有权

    公开(公告)号：US10333219B2

    公开(公告)日：2019-06-25

    申请号：US15282964

    申请日：2016-09-30

    申请人： Searete LLC

    发明人： Eric J. Black ,  Brian Mark Deutsch ,  Alexander Remley Katko ,  Melroy Machado ,  Jay Howard McCandless ,  Yaroslav A. Urzhumov

    IPC分类号： H01Q3/34 ,  H01Q21/06 ,  H04L27/00

    摘要： Antenna systems and related methods are disclosed. An antenna system includes an antenna controller configured to operably couple to an array of electromagnetic (EM) scattering elements. The controller is configured to determine a performance parameter of the antenna system for a plurality of different combinations of different spatial holographic phases and effective mode indices having different modulation patterns corresponding thereto, and select one of the modulation patterns based on the performance parameter corresponding thereto. A method includes storing data indicating a modulation pattern determined based on a spatial holographic phase and an effective mode index for each of a plurality of different main beam angles from the antenna, and controlling the antenna to operate with a main beam pointed in each of the plurality of different main beam angles by controlling the antenna to operate in each modulation pattern corresponding to the plurality of main beam angles.

    Beam pattern synthesis for metamaterial antennas
    7.
    发明授权
    Beam pattern synthesis for metamaterial antennas 有权

    公开(公告)号：US10741913B2

    公开(公告)日：2020-08-11

    申请号：US16102182

    申请日：2018-08-13

    申请人： Searete LLC

    发明人： Eric J. Black ,  Brian Mark Deutsch ,  Alexander Remley Katko ,  Melroy Machado ,  Jay Howard McCandless ,  Yaroslav A. Urzhumov

    IPC分类号： H01Q3/46 ,  H01Q3/44 ,  H01Q15/00

    摘要： A determined object wave can be approximately formed by applying a modulation pattern to metamaterial elements receiving RF energy from a feed network. For example, a desired object wave at a surface of an antenna is selected to be propagated into a far-field pattern. A computing system can compute an approximation of the object wave by calculating a modulation pattern to apply to metamaterial elements receiving RF energy from a feed network. The approximation can be due to a grid size of the metamaterial elements. Once the modulation pattern is determined, it can be applied to the metamaterial elements and the RF energy can be provided in the feed network, causing emission of the approximated object wave from the antenna.