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公开(公告)号：US11476714B2
公开(公告)日：2022-10-18
申请号：US16404416
申请日：2019-05-06
申请人： Searete, LLC
发明人： Lawrence F. Arnstein , Daniel Arnitz , Jeffrey A. Bowers , Joseph A. Hagerty , Guy S. Lipworth , David R. Nash , Matthew S. Reynolds , Clarence T. Tegreene
IPC分类号： H02J50/20 , H02J50/90 , H01Q15/14 , B60L53/36 , B60L53/14 , H02J7/02 , B64C39/02 , B64D47/00
摘要： Systems and methods are described herein for providing wireless power to a mobile device, such as an aerial mobile device like an unmanned aerial vehicle (UAV). A navigational constraint model may prescribe a navigation path along which a wireless power transmission system can provide wireless power to the mobile device. Deviations from the prescribed path may require the mobile device to self-power. The prescription of a navigation path allows for the use of reduced-complexity wireless power transmitters that are fully capable of servicing the prescribed path. Multiple embodiments of prescribed paths with various limitations and features are set forth herein, along with multiple embodiments of wireless power transmission systems of reduced complexity and functionality to fully service the various embodiments of prescribed paths.
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公开(公告)号：US11355841B2
公开(公告)日：2022-06-07
申请号：US16112552
申请日：2018-08-24
申请人： Searete LLC
发明人： Matthew S. Reynolds , Guy Lipworth , Joseph Hagerty , Daniel Arnitz , Yaroslav Aleksandrovich Urzhumov
IPC分类号： H01Q3/32 , H01Q21/06 , H01Q21/00 , H02J50/23 , H01P3/12 , B64F1/36 , B64C39/02 , H02J7/02 , B60L53/12
摘要： An embodiment of an antenna configured to form a high-power beam, such as a battery-charging beam, includes a transmission structure, signal couplers, amplifiers, and antenna elements. The transmission structure (e.g., a waveguide) is configured to carry a reference signal (e.g., a traveling reference wave), and each of the signal couplers is configured to generate a respective intermediate signal in response to the reference signal at a respective location along the transmission structure. Each of the amplifiers is configured to amplify, selectively, an intermediate signal from a respective one of the couplers, and each of the antenna elements (e.g., conductive patches) is configured to radiate a respective elemental signal in response to an amplified intermediate signal from a respective one of the amplifiers. In operation, the elemental signals interfere with one another to form a transmission beam, such as a battery-charging, or other high-power, transmission beam.
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公开(公告)号：US20220038191A1
公开(公告)日：2022-02-03
申请号：US17373456
申请日：2021-07-12
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： 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：US11165287B2
公开(公告)日：2021-11-02
申请号：US17009292
申请日：2020-09-01
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：US11075463B2
公开(公告)日：2021-07-27
申请号：US16381901
申请日：2019-04-11
申请人： Searete LLC
摘要： A metasurface antenna can be configured to focus a paraxial beam, such as a Gaussian beam, on a target within a Fresnel zone region. The focused beam can be used to wirelessly deliver power to the target.
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公开(公告)号：US20210126330A1
公开(公告)日：2021-04-29
申请号：US17093327
申请日：2020-11-09
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：US10916974B2
公开(公告)日：2021-02-09
申请号：US16142750
申请日：2018-09-26
申请人： Searete LLC
摘要： According to various embodiments, a moving wireless power receiver is configured to receive power wirelessly based on a prescribed path of the wireless power receiver. A prescribed path that a moving wireless power receiver traverses is identified. Further, at least one element of the wireless power receiver is controlled based on the prescribed path to change an amount of power received at the wireless power receiver from incident power transmitted by one or more wireless power transmitters. Specifically, the at least one element can be controlled to change the amount of power received at the wireless power receiver as either or both a posture and a position of the wireless power receiver change with respect to the one or more wireless power transmitters as the wireless power receiver traverses the prescribed path.
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8.发明申请公开(公告)号：US20200067186A1
公开(公告)日：2020-02-27
申请号：US16112539
申请日：2018-08-24
申请人： Searete LLC
发明人： Matthew S. Reynolds , Guy Lipworth , Joseph Hagerty , Daniel Arnitz , Yaroslav Aleksandrovich Urzhumov
摘要： An embodiment of an antenna array includes a cavity, signal couplers, and antenna elements. The cavity is configured to reinforce a reference signal (e.g., a standing reference wave) having a wavelength A, and each of the signal couplers is configured to generate a respective intermediate signal in response to the reference signal at a respective location of the cavity. And each of the antenna elements (e.g., conductive patches) is configured to radiate a respective elemental signal in response to an intermediate signal from a respective one of the signal couplers. In operation, the elemental signals interfere with one another to form a transmission beam. Controlling the cavity to introduce phase differences between the antenna elements can allow a wider pitch between adjacent antenna elements without the need for large, costly phase shifters, where the pitch can approach its theoretical limit of approximately λ/2.
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公开(公告)号：US10249950B1
公开(公告)日：2019-04-02
申请号：US15706697
申请日：2017-09-16
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： In some embodiments, an antenna system includes antenna elements for transmitting and/or receiving electromagnetic radiation. The antenna elements may be connected to a feed via a plurality of tunable impedance elements. At least some of the tunable impedance elements may have nonlinear responses to impedance tuning that can be numerically approximated by nonlinear impedance-tuning parameter curves with a cumulative number of selectable nonlinear coefficients. Control inputs to nonlinearly vary impedance values of the tunable impedance elements allow for the selection of distinct impedance patterns that correspond to distinct field patterns attainable by the antenna system. The number of field patterns attainable is a function of the number of control inputs and a cumulative number of selectable nonlinear coefficients. Thus, a selection of tunable impedance elements and control inputs may be made to attain a target number of field patterns to serve a desired coverage area.
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公开(公告)号：US20170352436A1
公开(公告)日：2017-12-07
申请号：US12807843
申请日：2010-09-14
摘要： Exemplary embodiments provide automated nuclear fission reactors and methods for their operation. Exemplary embodiments and aspects include, without limitation, re-use of nuclear fission fuel, alternate fuels and fuel geometries, modular fuel cores, fast fluid cooling, variable burn-up, programmable nuclear thermostats, fast flux irradiation, temperature-driven surface area/volume ratio neutron absorption, low coolant temperature cores, refueling, and the like.
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