Topic
Dielectric resonator antenna
About: Dielectric resonator antenna is a research topic. Over the lifetime, 8199 publications have been published within this topic receiving 111090 citations. The topic is also known as: DRA.
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Patent•
22 Jun 2012
TL;DR: In this article, improved configurations for the resonator for wireless power transfer were proposed, which include a magnetic material having at least one hollow section, and an electrical conductor wrapped around the magnetic material.
Abstract: Described herein are improved configurations for resonator for wireless power transfer that includes a magnetic material having at least one hollow section, and at least one electrical conductor wrapped around the magnetic material. The cavity of the magnetic material may be used for lossy elements such as circuit boards or electronics with reduced perturbations on the properties of the resonator compared to if the lossy elements were outside of the magnetic material next to the resonator.
329 citations
TL;DR: In this article, an antenna which consists of a resonant rectangular parallelepiped dielectric on top of a ground plane is described, and the effects of feed probe length variations are discussed.
Abstract: An antenna which consists of a resonant rectangular parallelepiped dielectric on top of a ground plane is described. Calculated radiation patterns and measured impedances are presented, and the effects of feed probe length variations are discussed.
322 citations
Patent•
28 Dec 2009
TL;DR: In this paper, the authors described improved capabilities for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source.
Abstract: In embodiments of the present invention improved capabilities are described for a method and system comprising a source resonator optionally coupled to an energy source and a second resonator located a distance from the source resonator, where the source resonator and the second resonator are coupled to provide near-field wireless energy transfer among the source resonator and the second resonator and where the field of at least one of the source resonator and the second resonator is shaped to avoid a loss-inducing object.
315 citations
Patent•
30 Apr 2008TL;DR: In this article, a dielectric resonator which generates evanescent waves in a predetermined direction in order to transmit power and a loop antenna which is coupled to a surface of the resonator is provided.
Abstract: An apparatus for transmitting power wirelessly is provided. The apparatus comprises: a dielectric resonator which generates evanescent waves in a predetermined direction in order to transmit power; and a loop antenna which is coupled to a surface of the dielectric resonator and supplies power to the dielectric resonator. The dielectric resonator transmits power by means of evanescent waves generated in directions perpendicular to top and bottom surfaces of the dielectric resonator and by radiation in directions parallel to the top and bottom surfaces of the dielectric resonator. Accordingly, efficient power transmission over short and long distance ranges is possible.
312 citations
TL;DR: In this article, a miniature dual-mode microstrip open-loop resonator is proposed, and its properties are investigated using full-wave electromagnetic simulations, and it is shown that the two operating modes within a single dualmode resonator of this type do not couple.
Abstract: A miniature dual-mode microstrip open-loop resonator is proposed. Distinct characteristics of this new type of dual-mode resonator are investigated using full-wave electromagnetic simulations. It is shown that the two operating modes, i.e., the even and odd modes, within a single dual-mode resonator of this type do not couple. It is also found that there is a finite-frequency transmission zero inherently associated with the even mode. Two two-pole filters using this type of dual-mode resonator are demonstrated with opposite asymmetric responses, which result from different locations of the transmission zero. Higher order filters of this type are also investigated. Both simulated and measured results are presented.
307 citations