Abstract: A space-based solar power station, a power generating satellite module and/or a method for collecting solar radiation and transmitting power generated using electrical current produced therefrom is provided. Power transmitters can be coordinated as a phased array and the power generated by the phased array is transmitted to one or more power receivers to achieve remote wireless power generation and delivery. In many embodiments, a reference signal is distributed within the space-based solar power station to coordinate the phased array. In several embodiments, determinations of the relative locations of the antennas in the array are utilized to evaluate the phase shift and/or amplitude modulation to apply the reference signal at each power transmitter.

Abstract: A method of generating a DC power from incident RF waves, includes, in part, measuring the amount of power being received by a device generating the DC power, and controlling the phases of the RF waves being transmitted by a multitude of RF transmitters in accordance with the measured power. A programmable test load is optionally used at the device to measure the received power. The device optionally includes, an antenna, an RF-to-DC converter to generate the DC power, an impedance matching/transformation circuit, and an RF load/matching circuit.

Abstract: A roaming and articulating wireless power delivery device includes, in part, an optical assembly adapted to deliver an optical beam, an energy storage unit, a controller, and an electrically driven moving platform. The moving platform may include an inertia measurement, a GPS, bump sensors and proximity sensors. The device may further include a camera, a gradient filter, and a wireless communication link via which the device establishes a two-way communication with a recovery unit being wirelessly powered.

Abstract: An RF power delivery system includes, in part, an N×M array of transmitting elements disposed along N rows and M columns where M an N are integer numbers, and a phase adjustment unit adapted to receive information representative of a change in position of a device targeted to receive the RF power wirelessly from the device and generate a codeword in response, and apply the codeword to adjust phases of the array of transmitting elements.

Abstract: A wireless power generating unit, includes, in part, a multitude of transmitting elements transmitting a multitude of RF signals to a wireless device, a backscatter RF receiver configured to receive the backscattered RF signal from the wireless device in response to the transmission of the RF signals, and a processor adapted to change the phases of the multitude of RF signals values in accordance with the strength of the received backscattered signal. The phases are changed to maximize the strength of the backscattered signal which may be modulated by varying a resistive load at the wireless device. The modulated backscattered signal may be encoded to carry information. The modulation frequency may be representative of the identity of the wireless device. The information may define the amount of RF power received by the wireless device.

Abstract: A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechargeable battery, an output interface, and a voltage reconditioning circuit adapted to supply power from the rechargeable battery to the output interface for delivery to an external device. The wireless power recovery unit may include one or more of a multitude of photodiodes adapted to convert a coherent optical signal to electrical power, an acoustic transducer adapted to convert acoustic waves to an electrical power, an inductive coupling circuit adapted to convert time varying magnetic flux to electrical power, and an RF power recovery unit adapted to convert an RF signal to electrical power.

Abstract: Wireless power transfer systems and methods for focusing wireless power transfer arrays are disclosed. One embodiment includes a wireless power generating unit (GU) including a processing system configured to focus the RF power sources by: sending control signals to the control circuitry to perform a plurality of sweeps using each of a plurality of different basis masks; receiving a message from a RU containing a report based upon received power measurements made by the RU; and sending control signals to focus the RF power sources based on the received message from the RU. Furthermore, each sweep includes performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of RF power sources identified in a basis mask, where the first group of RF power sources comprises a plurality of RF power sources.

Abstract: Wireless power transfer systems and methods for focusing wireless power transfer arrays are disclosed. One embodiment includes a wireless power generating unit (GU) including a processing system configured to focus the RF power sources by: sending control signals to the control circuitry to perform a plurality of sweeps using each of a plurality of different basis masks; receiving a message from a RU containing a report based upon received power measurements made by the RU; and sending control signals to focus the RF power sources based on the received message from the RU. Furthermore, each sweep includes performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of RF power sources identified in a basis mask, where the first group of RF power sources comprises a plurality of RF power sources.

Abstract: A wireless power delivery system includes, in part, a roaming and articulating wireless power transfer device. The roaming and articulating wireless power device includes, in part, a wireless power generation unit, an energy storage unit, a controller, and an electrically driven moving platform. The device further includes, in part, at least one RF transmitter or an array of RF transmitters adapted to radiate RF signals at the same frequency. The controller is adapted to control the phase of each RF transmitter independently. The array of RF transmitters may be foldable and expandable. The moving platform may include an inertia measurement, a GPS, bump sensors and proximity sensors. The device may further include a camera, and a wireless communication link via which the device establishes a two-way communication with a recovery unit being wirelessly powered.

Abstract: Many embodiments of the invention include stacked power amplifier configurations that include control circuitry for sensing the operational characteristics of the power amplifiers and adjusting the current drawn by one or more of the power amplifiers to prevent any of the power amplifiers from experiencing over voltage stresses and/or to increase the operational efficiency of the power amplifiers.

Abstract: A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechargeable battery, an output interface, and a voltage reconditioning circuit adapted to supply power from the rechargeable battery to the output interface for delivery to an external device. The wireless power recovery unit may include one or more of a multitude of photodiodes adapted to convert a coherent optical signal to electrical power, an acoustic transducer adapted to convert acoustic waves to an electrical power, an inductive coupling circuit adapted to convert time varying magnetic flux to electrical power, and an RF power recovery unit adapted to convert an RF signal to electrical power.

Abstract: A radiator is formed by forming a multitude of slot antennas adjacent one another such that the spacing between each pair of adjacent slot antennas is smaller than the wavelength of the signal being transmitted or received by the radiator. The radiator achieves high efficiency by reducing the excitation of substrate modes, and further achieves high output power radiation by combining power of multiple CMOS power amplifiers integrated in the radiator structure. Impedance matching to low-voltage CMOS power amplifiers is achieved through lowering the impedance at the radiator ports. Each output power stage may be implemented as a combination of several smaller output power stages operating in parallel, thereby allowing the combination to utilize an effective output device size commensurate with the impedance of the radiator.

Abstract: A method of determining the phases of a multitude of transmitting elements of an RF power generating unit, includes, in part, activating one of transmitting element during the first time period, turning off the remaining transmitting elements during the first time period, transmitting an RF signal from the activated transmitting element to a device to be charged during the first time period, detecting a first phase value associated with the RF signal at the device during the first time period, transmitting the detected first phase value from the device to the generating unit during the first time period, and adjusting the phase of the activated transmitting element in response to the detected first phase value.

Abstract: An RF power delivery system includes, in part, an N×M array of transmitting elements disposed along N rows and M columns where M an N are integer numbers, and a phase adjustment unit adapted to receive information representative of a change in position of a device targeted to receive the RF power wirelessly from the device and generate a codeword in response, and apply the codeword to adjust phases of the array of transmitting elements

Abstract: Wireless power transfer systems and methods for focusing wireless power transfer arrays are disclosed. One embodiment includes a wireless power generating unit (GU) including a processing system configured to focus the RF power sources by: sending control signals to the control circuitry to perform a plurality of sweeps using each of a plurality of different basis masks; receiving a message from a RU containing a report based upon received power measurements made by the RU; and sending control signals to focus the RF power sources based on the received message from the RU. Furthermore, each sweep includes performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of RF power sources identified in a basis mask, where the first group of RF power sources comprises a plurality of RF power sources.

Abstract: A rectifying circuit includes, in part, first and second NMOS transistors, an impedance matching network, and an RF block circuit. The source and gate terminals of the first NMOS transistor respectively receive the ground potential and a biasing voltage. The second NMOS transistor has a gate terminal coupled to the drain terminal of the first NMOS transistor, a drain terminal coupled to the gate terminal of the first NMOS transistor, and a source terminal receiving the ground potential. The impedance matching network is disposed between the antenna and the drain terminals of the first and second NMOS transistors. The RF block circuit is coupled between the drain terminals of the first and second NMOS transistors and the output terminal of the rectifying circuit. The RF block circuit is adapted to prevent the RF signal from flowing into the output terminal of the rectifying circuit.

Abstract: A method of determining the orientation of a device having disposed therein, in part, an inertia measurement unit, a phased array receiver, and a controller, includes, in part, detecting the difference between phases of an RF signal received by at least a pair of receive elements of the phased array receiver, determining the angle of incidence of the RF signal from the phase difference, using the angle of incidence to determine the projection of a vector on a plane of an array of transmitters transmitting the RF signal, and determining the yaw of the device from the projection of the vector. The vector is a three-dimensional vector representative of the orientation of the plane of the phased array receivers relative to the plane of the array of transmitters transmitting the RF signal.

Abstract: An RF power system, includes, in part, a power generating and a controller. The power generating unit, includes, in part, a first power detector adapted to detect a first amount of RF power radiated by the RF power generating unit and reflected off a living organism. The controller is adapted to reduce the radiated RF power if the first amount of RF power reflected by the living organism is detected as being greater than a predefined amount. The power generating unit may further include a Doppler radar to detect the living organism. The RF power system may further include a power recovery unit that, in turn, includes a second power detector adapted to detect a second amount of RF power radiated by the RF power generating unit and reflected off the living organism.

Abstract: An RF signal generator wirelessly transferring power to a wireless device includes, in part, a multitude of generating elements generating a multitude of RF signals transmitted by a multitude of antennas, a wireless signal receiver, and a control unit controlling the phases and/or amplitudes of the RF signals in accordance with a signal received by the receiver. The signal received by the receiver includes, in part, information representative of the amount of RF power the first wireless device receives. The RF signal generator further includes, in part, a detector detecting an RF signal caused by scattering or reflection of the RF signal transmitted by the antennas. The control unit further controls the phase and/or amplitude of the RF signals in accordance with the signal detected by the detector.

Abstract: A recovery unit adapted to receive a mobile device includes a multitude of planar antennas disposed along at least one of bottom or top surfaces of the recovery unit, a rectifying circuit adapted to convert an RF power received by the planar antennas to a DC power, an energy storage unit adapted to store the DC power, and a wireless communication circuit adapted to communicate with a power generating unit generating the RF power. The recovery unit is further adapted to supply the DC power to the mobile device. The recovery unit may further include a multitude of edge antennas disposed along exterior edges of the recovery unit. The recovery unit may further include at least one inductive coil to supply power to the mobile device when an AC power is applied to the inductive coil. The AC power may be generated from the received RF power.