Patent
Antenna system having at least two apertures facilitating reduction of interfering signals
TLDR
In this article, the antenna system includes at least two surface scattering antenna segments, each segment includes a respective electromagnetic waveguide structure, and a respective plurality of electromagnetic wave scattering elements.Abstract:
Described embodiments include an antenna system and method. The antenna system includes at least two surface scattering antenna segments. Each segment includes a respective electromagnetic waveguide structure, and a respective plurality of electromagnetic wave scattering elements. The wave scattering elements are distributed along the waveguide structure, have an inter-element spacing substantially less than a free-space wavelength of a highest operating frequency of the antenna segment, have a respective activatable electromagnetic response to a propagating guided wave, and are operable in combination to produce a controllable radiation pattern. A gain definition circuit defines a series of at least two radiation patterns selected to facilitate a convergence on an antenna radiation pattern that maximizes a radiation performance metric. An antenna controller sequentially establishes each radiation pattern. A receiver receives the desired field of view signal and the undesired field of view signal.read more
Citations
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Patent
Method and apparatus for coupling an antenna to a device
Paul Shala Henry,Donald J. Barnickel,Farhad Barzegar,Robert Bennett,Irwin Gerszberg,Thomas M. Willis +5 more
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Patent
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Patent
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TL;DR: In this article, a distributed antenna system is provided that frequency shifts the output of one or more microcells to a 60 GHz or higher frequency range for transmission to a set of distributed antennas.
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Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
TL;DR: In this article, the authors describe a device that facilitates transmitting electromagnetic waves along a surface of a wire that facilitates delivery of electric energy to devices, and sensing a condition that is adverse to the electromagnetic waves propagating along the surface of the wire.
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Method and apparatus that provides fault tolerance in a communication network
Paul Shala Henry,Robert Bennett,Irwin Gerszberg,Farhad Barzegar,Donald J. Barnickel,Thomas M. Willis +5 more
TL;DR: In this article, a system for detecting a fault in a first wire of a power grid that affects a transmission or reception of electromagnetic waves that transport data and that propagate along a surface of the first wire is described.
References
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Journal ArticleDOI
Two-dimensional beam steering using an electrically tunable impedance surface
TL;DR: In this article, a periodic surface texture is used to alter the electromagnetic properties of a metal ground plane by covering the surface with varactor diodes, and a tunable impedance surface is built, in which an applied bias voltage controls the resonance frequency and the reflection phase.
Journal ArticleDOI
Scalar and Tensor Holographic Artificial Impedance Surfaces
TL;DR: In this paper, an artificial impedance surface that is implemented as an array of sub-wavelength metallic patches on a grounded dielectric substrate is designed to scatter a known input wave into a desired output wave.
Patent
Remote charging system for a vehicle
TL;DR: In this article, a remote charging system for use with an electrical storage device mounted in an electric or electric/hybrid vehicle is presented. But the system includes a power transmission unit capable of transmitting electrical energy to the electrical storage devices via a wireless energy beam.
Patent
Biological effects of magnetic power transfer
TL;DR: In this article, the authors present a system and method for wireless power transfer based on values set to comply with limits from multiple different agencies, including the National Institute of Standards and Technology (NIST).