公开(公告)号：US20210296937A1

公开(公告)日：2021-09-23

申请号：US17209310

申请日：2021-03-23

Applicant: University of Electronic Science and Technology of China

Inventor： Xianzheng ZONG ,  Zaiping NIE ,  Wen XIONG ,  Jun HU ,  Shiwen YANG ,  Xuyu YE ,  Xiaofeng QUE ,  Yongpin CHEN

IPC: H02J50/23 ,  H01Q9/04 ,  H02J50/80 ,  H01Q1/24 ,  H02J50/00 ,  H02J50/40

Abstract: The disclosure provides a wireless charging device including a metal frequency-selective box and an internal charging system disposed inside the metal frequency-selective box for wireless charging. The internal charging system includes a multi-antenna subsystem including N antenna units; N is an integer greater than 2, and the antenna units are dipole antennas, microstrip patch antennas, microstrip slot antennas, helical antennas, or dielectric resonator antennas. The N antenna units are evenly disposed, in a two-dimensional ring, on inner sides of four side faces of the metal frequency-selective box, or disposed on a three-dimensional curved surface of the entire inner side of the metal frequency-selective box. The device to be energized is disposed in the metal frequency-selective box and is surrounded by the N antenna units.