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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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4.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：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：US20190341812A1
公开(公告)日：2019-11-07
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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7.发明申请公开(公告)号：US20190181696A1
公开(公告)日：2019-06-13
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：US20190181523A1
公开(公告)日：2019-06-13
申请号：US15839125
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. Urhumov
摘要： According to various embodiments, a quadrature hybrid coupler included as part of a phase shifter is used to provide variable phase shift to an input signal. The quadrature hybrid coupler includes an input port, an output port, and two terminated ports. The phase shifter includes one or more static lumped elements connected to the QHC to reduce at least one electrical dimension of the QHC to substantially less than a quarter wavelength. The phase shifter also include one or more variable lumped elements connected to the QHC to provide a variable phase shift to the input signal between the input port and the output port of the QHC.
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公开(公告)号：US20190173324A1
公开(公告)日：2019-06-06
申请号：US15832612
申请日：2017-12-05
申请人： Searete LLC
发明人： Daniel Arnitz , Jeffrey A. Bowers , Joseph A. Hagerty , Russell J. Hannigan , Guy S. Lipworth , David R. Nash , Matthew S. Reynolds , Clarence T. Tegreene , Yaroslav A. Urzhumov
IPC分类号： H02J50/70 , H02J50/23 , H04W52/28 , H02J50/27 , H02J50/90 , H01Q1/24 , H02J50/80 , H01Q3/24 , B64C39/02
摘要： System and methods are described herein for providing wireless power to a target device, such as a laptop computer, a mobile phone, a vehicle, robot, or an unmanned aerial vehicle or system (UAV) or (UAS). A tunable multi-element transmitter may transmit electromagnetic radiation (EMR) to the target device using any of a wide variety of frequency bands. A location determination subsystem and/or range determination subsystem may determine a relative location, orientation, and/or rotation of the target device. For a target device within a distance range for which a smallest achievable waist of the Gaussian beam of the EMR at an operational frequency is smaller than the multi-element EMR receiver of the target device, a non-Gaussian beamform may be determined to increase efficiency, decrease overheating, reduce spillover, increase total power output of rectenna receivers on the target device, or achieve another target power delivery goal.
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公开(公告)号：US20180337444A1
公开(公告)日：2018-11-22
申请号：US15600339
申请日：2017-05-19
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： An antenna system includes a tunable medium, rectifier circuitry, combining circuitry, and control circuitry. The tunable medium includes antenna elements corresponding to lumped impedance elements and variable impedance control inputs configured to enable selection of an impedance value for each of the lumped impedance elements. The control circuitry is configured to determine a scattering matrix (S-matrix) relating field amplitudes at lumped ports including internal lumped ports and lumped external ports. The internal lumped ports correspond to the lumped impedance elements, and the lumped external ports correspond to at least one of the rectifier circuitry inputs, the combined output of the combining circuitry, and the at least one transmitting element. A method includes determining at least a portion of component values of a desired S-matrix, and adjusting the variable impedance control inputs to at least approximate at least a portion of the desired S-matrix.
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