公开(公告)号：US11381115B2

公开(公告)日：2022-07-05

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 ,  H02J50/80 ,  H02J50/40 ,  H02J50/00 ,  H01Q1/24 ,  H01Q9/04

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.

公开(公告)号：US11996615B2

公开(公告)日：2024-05-28

申请号：US17448563

申请日：2021-09-23

Applicant: University of Electronic Science and Technology of China

Inventor： Zaiping Nie ,  Yanhui Liu ,  Xianzheng Zong ,  Jun Hu

IPC: H01Q15/16 ,  H01Q3/18 ,  H01Q3/26 ,  H01Q15/14 ,  H01Q19/17 ,  H01Q21/28 ,  H01Q25/00 ,  H04B1/00 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08

CPC classification number: H01Q15/166 ,  H01Q3/18 ,  H01Q3/2605 ,  H01Q15/14 ,  H01Q19/17 ,  H01Q21/28 ,  H01Q25/007 ,  H04B1/0057 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/046 ,  H04B7/0671 ,  H04B7/084

Abstract: This document discloses a reflector antenna system with movable MIMO multiple feeds and adaptive field focusing method for wireless communication in multipath fading environment; the system comprises antenna reflector, multiple feeds, the equal number of the signal receiving channels and signal transmitting channels to the feeds, all the channels are capable to measure and adjust the amplitude and time delay of signals, and the method for amplitude and time delay adjustment of the powered signals. In signal receiving mode the antenna system makes the signal components arrived through unknown multipath superimpose synchronously; in signal transmitting mode, the system let the wave components radiated from different transmitting channels superimpose synchronously, realizing adaptive field focusing at the antenna of the communication target. This antenna system is suitable for point to point wireless communication in wireless propagation environment with multipath fading effect, showing remarkable improvement of SNR of the signals transmitted and received.