WIRELESS CHARGING APPARATUS

WIPO Patent Application WO/2023/116547

A1

A wireless charging apparatus. The apparatus uses a multi-feed, multi-mode, and resonance coherent working mechanism, performs wireless charging on an energy receiving end apparatus by means of a focusing field, and effectively improves wireless charging efficiency and achieves the miniaturization of an energy receiving end antenna. The wireless charging apparatus comprises a cavity (1) and a phased array antenna; the cavity (1) comprises an even number of side surfaces (2); the even number of side surfaces (2) are parallel in pairs; each side surface (2) has the capability of reflecting electromagnetic waves; the phased array antenna comprises an antenna array; the antenna array comprises a plurality of antennas (3); the plurality of antennas (3) are arranged on the even number of side surfaces (2) and used for emitting the electromagnetic waves so as to charge an energy receiving device (4) placed in the cavity (1); a distance between the two parallel side surfaces (2) is equal to an integral multiple of the half-wavelength of the electromagnetic waves emitted by a first antenna, so as to generate a standing wave field in the cavity (1); and the first antenna is an antenna (3) arranged on the two parallel side surfaces (2).

ZHAO MING (CN)
MA XIN (CN)
ZHAO DESHUANG (CN)
JIANG WEIPENG (CN)
HUANG TAO (CN)

PCT/CN2022/139292

June 29, 2023

December 15, 2022

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HUAWEI TECH CO LTD (CN)
UNIV ELECTRONIC SCI & TECH CHINA (CN)

H02J50/23

CN108879894A	2018-11-23
CN107659002A	2018-02-02
CN111293756A	2020-06-16
US20210135372A1	2021-05-06

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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