Invention Grant
- Patent Title: Wireless-power transmitting device for creating a uniform near-field charging area
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Application No.: US17228621Application Date: 2021-04-12
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Publication No.: US11799324B2Publication Date: 2023-10-24
- Inventor: Sohini Sengupta , Yunhong Liu , Tuomo Katajamaki
- Applicant: Energous Corporation
- Applicant Address: US CA San Jose
- Assignee: Energous Corporation
- Current Assignee: Energous Corporation
- Current Assignee Address: US CA San Jose
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02J50/20 ; H02J7/02 ; H02J50/40 ; H01Q9/42 ; H01Q9/04 ; H01Q9/16

Abstract:
An example near-field charging system includes a housing that includes a charging surface and at least one other surface, a radiating antenna, and a non-radiating element positioned above the radiating antenna within the housing such that the non-radiating element is closer to the charging surface than the radiating antenna. The radiating antenna produces a first electromagnetic-field distribution that is received by a receiver, the first electromagnetic-field provides usable power when the receiver is placed at any position on a first portion of the charging surface. The non-radiating element changes a distribution characteristic of the first electromagnetic-field distribution to produce a second electromagnetic-field distribution, the second electromagnetic-field distribution providing usable power to the receiver when the receiver is placed at any position across a second portion of the charging surface of the housing, and the second portion is at least 10% percent greater than the first portion.
Public/Granted literature
- US20210320529A1 WIRELESS-POWER TRANSMITTING DEVICE FOR CREATING A UNIFORM NEAR-FIELD CHARGING AREA Public/Granted day:2021-10-14
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