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Miniaturized and efficient design for near-field power transfer systems

A power transmission and near-field technology, which is applied to the feed at the end of the slender active unit, the feed at the middle position between the end points of the antenna, and the direction of the antenna, which can solve the problems of low power transmission efficiency and leakage of the patch antenna.

Active Publication Date: 2021-07-16
ENERGOUS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, patch antennas also have low power transfer efficiency in the near-field, particularly because the generated power may leak in all directions rather than being concentrated in a specific area within the near-field distance of the transmitter

Method used

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  • Miniaturized and efficient design for near-field power transfer systems
  • Miniaturized and efficient design for near-field power transfer systems
  • Miniaturized and efficient design for near-field power transfer systems

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Embodiment Construction

[0037] Reference will now be made to the illustrative embodiments shown in the drawings, and specific language will be used herein to describe the same. It will be understood, however, that no limitation of the scope of the claims or the scope of the disclosure is thereby intended. Alternatives and further modifications of the inventive features presented herein, as well as additional applications of the principles of the solutions presented herein, will occur to those skilled in the relevant art and possessed of the present disclosure as technical solutions disclosed herein In the range. The invention is described in detail herein with reference to the embodiments shown in the accompanying drawings, which form a part hereof. Other embodiments may be utilized and / or other changes may be made without departing from the spirit or scope of the present disclosure. The illustrative embodiments described in the detailed description are not meant to limit the technical solutions pr...

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Abstract

Disclosed herein are embodiments of near-field power transfer systems that may include antenna elements constructed or printed close to each other in a curved arrangement. In a curved arrangement, adjacent antenna elements conduct currents flowing in opposite directions. This current flow completely or nearly completely cancels any far-field RF radiation produced by the antenna or by the electromagnetic effects of the current flow. In other words, for a first current flowing in a first path, there may be a second current flowing in a second counteracting path, which counteracts the far-field radiation produced by the first current flowing in the first path. Therefore, there may be no radiation of power to the far field. However, this cancellation may not occur in the near-field active region, where transfer of power may occur between the transmitter and receiver. Additionally, the ground plane blocks power leakage from the back of the transmitter and / or receiver.

Description

technical field [0001] The present application relates generally to wireless charging systems, and more particularly to near-field radio frequency (RF) antennas for transmitting or receiving power. Background technique [0002] Electronic devices such as laptop computers, smart phones, portable gaming devices, tablets, etc. require power to function. As is generally understood, electronic devices are typically charged at least once a day, or more than once a day in the case of high usage or high power consumption electronic devices. Such activity may be tedious and may burden the user. For example, a user may need to carry a charger in case the user's electronic device runs out of power. Additionally, some users have to find an available power source to connect to, which is inconvenient and time consuming. Finally, some users must plug into a wall or other power source to charge the user's electronic device. Such activity may render the electronic device inoperable or im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J5/00H04B5/48
CPCH02J50/23H02J50/70H01Q7/00H01Q9/27H01Q9/285H01Q9/40
Inventor 阿利斯特·胡斯尼迈克尔·A·利布曼
Owner ENERGOUS CORPORATION
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