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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.
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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
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.
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公开(公告)号：US10439299B2
公开(公告)日：2019-10-08
申请号：US15489575
申请日：2017-04-17
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
摘要： Antenna systems and related methods are disclosed. An antenna system includes an antenna controller configured to operably couple to control inputs of an antenna including an array of electromagnetic (EM) scattering elements. A method includes controlling an array of EM scattering elements to operate according to holographic modulation patterns, and modulating at least one effective EM property of the antenna over space, time, or a combination thereof to, in the average and/or the aggregate, cause side lobes of an antenna gain of the antenna to be reduced.
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公开(公告)号：US10431901B2
公开(公告)日：2019-10-01
申请号：US15387987
申请日：2016-12-22
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
摘要： A surface scattering antenna with a tightly-coupled or tightly-connected array of radiators provides an adjustable antenna with broadband instantaneous bandwidth.
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公开(公告)号：US10178560B2
公开(公告)日：2019-01-08
申请号：US15183291
申请日：2016-06-15
申请人： Searete LLC
发明人： Eric J. Black , Brian Mark Deutsch , Russell J. Hannigan , Alexander Remley Katko , Melroy Machado , Jay Howard McCandless , Yaroslav A. Urzhumov
IPC分类号： H04W16/28 , H04B7/06 , H04B7/0413 , H04W48/16 , H04W16/06
摘要： Holographic beamforming antennas may be utilized for adaptive routing within communications networks, such as wireless backhaul networks. Holographic beamforming antennas may be further utilized for discovering and/or addressing nodes in a communication network with steerable, high-directivity beams. Holographic beamforming antennas may be further utilized for extending the range of communications nodes and providing bandwidth assistance to adjacent nodes via dynamic adjacent cell assist. In some approaches, MIMO is used in concert with holographic beamforming for additional channel capacity.
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公开(公告)号：US10602373B2
公开(公告)日：2020-03-24
申请号：US15350451
申请日：2016-11-14
申请人： Searete LLC
发明人： Eric J. Black , Brian Mark Deutsch , Russell J. Hannigan , Alexander Remley Katko , Melroy Machado , Jay Howard McCandless , Yaroslav A. Urzhumov
IPC分类号： H04W16/28 , H04B7/06 , H04B7/0413 , H04W48/16 , H04W16/06
摘要： Holographic beamforming antennas may be utilized for adaptive routing within communications networks, such as wireless backhaul networks. Holographic beamforming antennas may be further utilized for discovering and/or addressing nodes in a communication network with steerable, high-directivity beams. Holographic beamforming antennas may be further utilized for extending the range of communications nodes and providing bandwidth assistance to adjacent nodes via dynamic adjacent cell assist. In some approaches, MIMO is used in concert with holographic beamforming for additional channel capacity.
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公开(公告)号：US10361481B2
公开(公告)日：2019-07-23
申请号：US15338918
申请日：2016-10-31
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
摘要： Inter-element couplings between radiative elements of an antenna can be reduced by increasing resonant frequencies for first selected radiative elements and decreasing resonant frequencies for second selected radiative elements. In some approaches, the radiative elements are coupled to a waveguide and the antenna configuration is a hologram that relates a reference wave of the waveguide to a radiated wave of the antenna. In some approaches, the antenna configuration is modified by identifying stationary points of the hologram and then staggering resonant frequencies for radiative elements within neighborhoods of the stationary points.
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8.发明申请公开(公告)号：US20180097286A1
公开(公告)日：2018-04-05
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
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.
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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
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.
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公开(公告)号：US20190074587A1
公开(公告)日：2019-03-07
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
CPC分类号： H01Q3/46 , H01Q3/44 , H01Q15/0086
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.
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