Patent
Ceramic antenna module and methods of manufacture thereof
TLDR
In this paper, the authors proposed a design of circuit modules and methods of construction thereof that contain composite meta-material dielectric bodies that have high effective values of real permittivity but which minimize reflective losses, through the use of host dielectrics (organic or ceramic), materials having relative permittivities substantially less than ceramic inclusions embedded therein.Abstract:
Circuit modules and methods of construction thereof that contain composite meta-material dielectric bodies that have high effective values of real permittivity but which minimize reflective losses, through the use of host dielectric (organic or ceramic), materials having relative permittivities substantially less than ceramic dielectric inclusions embedded therein. The composite meta-material bodies permit reductions in physical lengths of electrically conducting elements such as antenna element(s) without adversely impacting radiation efficiency. The meta-material structure may additionally provide frequency band filtering functions that would normally be provided by other components typically found in an RF front-end.read more
Citations
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PatentDOI
Active terahertz metamaterial devices
TL;DR: An active metamaterial device capable of efficient real-time control and manipulation of terahertz radiation is demonstrated, which enables modulation of THz transmission by 50 per cent, an order of magnitude improvement over existing devices.
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
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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.
Patent
Nanostructure and nanocomposite based compositions and photovoltaic devices
Erik C. Scher,Mihai Buretea,Calvin Y. H. Chow,Stephen Empedocles,Andreas Meisel,J. Wallace Parce +5 more
TL;DR: In this article, Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer, where the nanostructures are not necessarily part of a nanocomposition.
Patent
Methods and apparatus for material deposition
TL;DR: In this article, a method and apparatus for forming thin films of chemical compounds utilized in integrated circuits is described, which includes steps of forming a precursor liquid comprising a chemical compound in a solvent, providing a substrate within a vacuum deposition chamber, producing a mist of the precursor liquid, and flowing the mist into the deposition chamber while maintaining the chamber at ambient temperature to deposit a layer of the precursors on the substrate.
Journal ArticleDOI
Planar artificial magnetic conductors and patch antennas
TL;DR: In this paper, a planar perfect magnetic conductor (PMC) was used as a reflector for a large aperture coupled patch antenna array, especially in order to reduce the parallel-plate modes that are usually present in traditional aperture-coupled patch arrays.
Patent
Ceramic ferroelectric composite material - BSTO-MgO
TL;DR: In this article, a novel ceramic ferroelectric material having a low dielectric constant, extremely low loss and high tunability was proposed, which is a composite consisting of Barium Strontium Titanate (BSTO) and a ceramic material.