Patent
Reflectarray antenna system
Thomas Hand,Michael Cooley,David Sall,Gary L. Kempic +3 more
- 15 Oct 2013
124
TL;DR: In this article, the authors describe a reflectarray antenna system, which includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band, and a reflector comprising a reflect array.
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Abstract: One embodiment describes a reflectarray antenna system. The system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector comprising a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
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Citations
Patent
Wireless power transmission with selective range
Michael A. Leabman,Gregory Scott Brewer +1 more
- 09 Jun 2014
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.
226
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TL;DR: In this article, the configurations and methods of wireless power transmission for charging or powering one or more electronic devices inside a vehicle are disclosed and a transmitter capable of single or multiple pocket-forming may be connected to a car lighter, where this transmitter may include a circuitry module and an antenna array integrated within the transmitter, or operatively connected through a cable.
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Michael A. Leabman,Gregory Scott Brewer +1 more
- 28 Oct 2014
TL;DR: In this article, the authors present a wireless power system which may be used to provide wireless power transmission (WPT) while using suitable WPT techniques such as pocket-forming.
208
Patent
System and method for providing health safety in a wireless power transmission system
Douglas Bell,Michael A. Leabman +1 more
- 14 Jul 2014
TL;DR: In this paper, the authors describe a wireless power transmission system that includes a processing apparatus with a processor; a data storage; and one or more wireless power transmitters each including at least two antennas, and the processing apparatus causes transmission of the RF waves by the transmitters in accordance with determining that the at least one userspecified circumstance is not present at the respective electronic device.
199
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Transmitters for wireless power transmission
Michael A. Leabman,Gregory Scott Brewer +1 more
- 10 May 2013
TL;DR: The present disclosure may provide various electric transmitter arrangements which may be used to provide wireless power transmission (WPT) while using suitable WPT techniques such as pocket-forming as mentioned in this paper.
196
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Large aperture rectenna based on planar lens structures
Daniel F. Sievenpiper
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TL;DR: In this paper, a rectenna structure comprising a flexible, dielectric sheet of material, a plurality of metallic lenslets disposed on the sheet, each diode in said plurality of diodes being arranged at a focus of a corresponding one of the lenslets, is described.
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Patent
Dual frequency reflector antenna feed element
John Glabe,Francis D. McGaffigan +1 more
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TL;DR: In this paper, a dual frequency feed element for a parabolic reflector antenna system, comprising a conductive cavity having a central axis, the cavity mounted at the focal point of a paraboloid reflector surface and defined about its outer perimeter by an upstanding cavity wall, having a closed cavity floor and an open top directed toward the reflective surface, was presented.
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Patent
Anisotropic metamaterial gain-enhancing lens for antenna applications
Douglas H. Werner,Erik Lier,Bonnie G. Martin,Jeremiah P. Turpin,Qi Wu +4 more
- 04 May 2012
TL;DR: In this article, a low-index metamaterial lens was used to create highly collimated beams in the far-field from a low directivity antenna feed, which can be used to construct a relatively wide-band low index region.
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