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公开(公告)号：US10958108B2
公开(公告)日：2021-03-23
申请号：US15585330
申请日：2017-05-03
申请人： Searete LLC
摘要： Described embodiments include a system and method. A system includes a tracking circuit configured to determine a location of a target device within a Fresnel region of an electronically reconfigurable beam-forming antenna. The antenna is configured to implement at least two selectable focused electromagnetic beams within its Fresnel region. The system includes a beam selector circuit configured to select from the at least two selectable focused electromagnetic beams a focused electromagnetic beam having a focal spot that covers at least a portion of the determined location of the target device. The system includes a beam definition circuit configured to determine an electromagnetic field distribution over an aperture of the electronically reconfigurable beam-forming antenna implementing the selected focused electromagnetic beam. The system includes an output circuit configured to transmit a signal indicative of the determined electromagnetic field distribution.
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公开(公告)号：US10938249B2
公开(公告)日：2021-03-02
申请号：US16157680
申请日：2018-10-11
申请人： Searete, LLC
发明人： Daniel Arnitz , Lawrence F. Arnstein , Jeffrey A. Bowers , Joseph A. Hagerty , Russell J. Hannigan , Guy S. Lipworth , David R. Nash , Matthew S. Reynolds , Clarence T. Tegreene , Yaroslav A. Urzhumov
摘要： Systems and methods are provided for various tunable multi-timescale wireless rectification systems. Tunable multi-timescale wireless rectification systems may include multiple feedback control loops, systems, or sub-systems that modify characteristics of components of a wireless rectification system on various timescales. A wireless rectification system may include antennas, impedance-matching components, rectifying devices, DC-to-DC converters, and/or load controllers. Two or more feedback controls may function on different timescales to modify one or more characteristics or functionalities of components of the wireless rectification system in response to monitored AC and/or DC power values at various locations within the wireless rectification system. Feedback controls operating on various timescales may include antenna feedback controls, impedance feedback controls, rectifying feedback controls, and/or DC feedback controls.
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公开(公告)号：US10833381B2
公开(公告)日：2020-11-10
申请号：US15807338
申请日：2017-11-08
申请人： Searete LLC
发明人： Yaroslav A. Urzhumov , Matthew S. Reynolds , Guy S. Lipworth , Russell J. Hannigan , Daniel Arnitz , Joseph Hagerty
摘要： The present technology pertains to a system and method of operation of a metamaterial phase shifter having various use applications. In one aspect of the present disclosure, a phase shifter includes a network of tunable impedance elements and a controller. The controller is coupled to the network of tunable impedance elements and configured to receive a phase shift input value and determine a corresponding tuning voltage to be supplied to each tunable impedance element of the network of tunable impedance elements based on the phase shift input value, the network of tunable impedance element being configured to shift a phase of an input signal based on tuning voltages supplied to the network of tunable impedance elements by the controller.
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公开(公告)号：US20200099260A1
公开(公告)日：2020-03-26
申请号：US16142764
申请日：2018-09-26
申请人： Searete LLC
摘要： According to various embodiments, systems and methods for wirelessly transmitting energy to a moving wireless power receiver in a network of interlinked prescribed paths. A position of a wireless power receiver in a network of interlinked prescribed paths is tracked as the wireless power receiver traverses one or more prescribed paths in the network of interlinked prescribed paths. Energy is wirelessly transmitted from one or more wireless power transmitters to the wireless power receiver based on the position of the wireless power receiver in the network of interlinked prescribed paths. Specifically, the energy is wirelessly transmitted to the wireless power receiver based on the position of the wireless power receiver in the network of interlinked prescribed paths as the wireless power receiver traverses the one or more prescribed paths in the network of interlinked prescribed paths.
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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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6.发明授权公开(公告)号：US10530194B2
公开(公告)日：2020-01-07
申请号：US15839007
申请日：2017-12-12
申请人： Searete LLC
发明人： Daniel Arnitz , Joseph Hagerty , Russell J. Hannigan , Guy S. Lipworth , Matthew S. Reynolds , Yaroslav A. Urzhumov
摘要： According to various embodiments, a non-linear RF receiver including non-linear components is configured to receive RF energy. The non-linear RF receiver is coupled to an array of RF antennas having configuration parameters that vary across the array. The varied configuration parameters can be selected to reduce an amount of RF energy that is scatter, reflected, or re-radiated by the array in response to incident RF energy at the array of RF antennas. In various embodiments, the non-linear components of the non-linear RF receiver can have non-linear component configuration parameters that vary across the non-linear receiver. The varied non-linear component parameters can be selected to reduce an amount of RF energy that is re-radiated in response to incident RF energy.
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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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公开(公告)号：US20190104421A1
公开(公告)日：2019-04-04
申请号：US15722973
申请日：2017-10-02
申请人： Searete LLC
发明人： Yaroslav A. Urzhumov , Matthew S. Reynolds , Guy S. Lipworth , Russell J. Hannigan , Daniel Arnitz , Joseph Hagerty
摘要： In one embodiment, a source device includes one or more tunable elements associated with an antenna. The source device is operable to modulate an impedance of one or more tunable elements based on a sequence of tuning vectors, measure a reference signal amplitude for each tuning vector, and determine field amplitudes for an array of reference points that circumscribe at least a portion of the source device based on the reference signal amplitude for each tuning vector. The source device is further operable to determine a target tuning vector that defines a target radiation pattern based on the field amplitudes, and transmit a target signal to a target device based on the target radiation pattern.
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公开(公告)号：US10200069B1
公开(公告)日：2019-02-05
申请号：US15900564
申请日：2018-02-20
申请人： Searete LLC
发明人： Yaroslav A. Urzhumov
IPC分类号： H04B1/04 , H04B1/18 , H04B7/0456 , H01Q21/00 , H01Q21/24
摘要： In one embodiment, an antenna system performance metric for a tunable antenna system comprising tunable impedance elements is identified. The tunable impedance elements are simulated as uniquely numbered lumped ports characterizing a port network with a corresponding admittance or impedance matrix. The admittance or impedance matrix can be approximated using the periodicity of the tunable antenna system and the S-matrix of the port network can be estimated using the approximated admittance or impedance matrix. An optimal configuration of the tunable antenna system with respect to the antenna system performance metric is identified from responses of the tunable antenna system to variable impedances using the S-matrix. The optimal configuration of the tunable antenna system includes impedances of the tunable impedance elements modeled as the lumped ports in the port network.
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10.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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