Patent
Wireless power transfer system, power transmitter, and rectenna base station
TLDR
In this paper, a wireless power transfer system includes a plurality of power transmitters, each of which transmits a microwave; and a rectenna base station which receives the microwave to generate power.Abstract:
A wireless power transfer system includes: a plurality of power transmitters, each of which transmits a microwave; and a rectenna base station which receives the microwave to generate power. The rectenna base station includes: a rectenna; and control section which specifies an identification code for identifying each power transmitter and generates a command signal to change a phase of the power transmitter specified by identification code so as to increase a power value received at the rectenna. Each of the power transmitters comprises: a plurality of transmission antenna elements, each of which transmits the microwave to the rectenna base station; and a phase controller which makes phase change of the microwave based on the command signal from the phase monitor and control section of the rectenna base station if the identification code matches a stored identification code.read more
Citations
More filters
Patent
Wireless Power Transmission
Mingyu Lu,Richard E. Billo +1 more
TL;DR: In this article, a system for wireless power transmission may include a pilot analysis circuitry, processor and power transmitter, and the power transmitter may cause radiation of a focused wireless power beam to the powered device in accordance with the complex conjugate of the pilot signal and via one or more antenna elements.
Patent
Wireless power transmission with selective range
TL;DR: In this article, the authors describe a methodology for wireless power transmission based on pocket-forming, which may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power.
Patent
System and method for controlling communication between wireless power transmitter managers
Douglas Bell,Michael Leabman +1 more
TL;DR: In this paper, a method for controlling communication between wireless power transmitter managers is disclosed, where a WiFi connection may be established between WPT managers to share information between system devices, and a WPT manager may need to fulfill two conditions to control power transfer over a customer device; customer device's signal strength threshold has to be significantly greater than 50%, such as 55% or more of the signal strength measured by all other wireless power transmitters and has to remain significantly higher than 50% for a minimum amount of time.
Patent
Receivers for Wireless Power Transmission
TL;DR: In this article, the authors provide various electric receiver arrangements which may be used to provide wireless power transmission using suitable power transmission techniques such as pocket-forming, where receivers may include at least one antenna connected to at least two rectifiers and one power converter.
References
More filters
Patent
Charging of devices by microwave power beaming
TL;DR: In this paper, a system for providing wireless, charging power and/or primary power to electronic/electrical devices is described whereby microwave energy is employed, where the energy is focused by a power transmitter comprising one or more adaptively-phased microwave array emitters onto a device to be charged.
Proceedings ArticleDOI
Development of a retrodirective wireless microwave power transmission system
L.H. Hsieh,B. Strassner,S.J. Kokel,Christopher T. Rodenbeck,Ming-yi Li,Kai Chang,F.E. Little,G.D. Arndt,P.H. Ngo +8 more
TL;DR: This paper describes the design of a small-scale system for demonstrating retrodirective wireless power transmission that drives two 5.8 GHz circular-polarized transmit antenna subarrays that illuminate a remote CP rectenna array.
Journal ArticleDOI
Research on solar power satellites and microwave power transmission in Japan
TL;DR: In this article, the fundamental question of why we need to develop SPS from the viewpoint of critical global issues for mankind is answered, and a summary of recent research committee activities on SPS and a road map of future SPS research plans in Japan is presented.
Proceedings ArticleDOI
A phased-array architecture for retrodirective microwave power transmission from the space solar power satellite
TL;DR: This paper presents a phased array architecture for retrodirective microwave wireless power transmission from the space solar power satellite (SPS) using a 2.9-GHz pilot beam and a 5.8-GHz transmit beam, with retrodirectives phasing implemented directly at RF.
Patent
Beam alignment system and method for an antenna
TL;DR: In this paper, a beam alignment method for correcting antenna beam misalignment between a transmit antenna and a receive antenna on a mobile platform such as an aircraft is proposed. But the beam alignment procedure is not implemented without interfering with normal use of the transmit and receive antennas and further ensures that interference with satellites adjacent to the target satellite will not occur during return link transmissions from the aircraft to the ground station.