US 11,700,025 B2
Wireless single-phase AC-to-AC conversion circuit based on 2.4G microwave
Xiaoning Li, Chengdu (CN); Wei Zhou, Chengdu (CN); Zidong Zhang, Chengdu (CN); Xin Fang, Chengdu (CN); Shijun Shen, Chengdu (CN); Dawei Gong, Chengdu (CN); and Dejie Li, Chengdu (CN)
Assigned to UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA, Chengdu (CN)
Filed by UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA, Chengdu (CN)
Filed on Dec. 21, 2021, as Appl. No. 17/645,318.
Claims priority of application No. 202110603406.9 (CN), filed on May 31, 2021.
Prior Publication US 2022/0385323 A1, Dec. 1, 2022
Int. Cl. H04B 1/16 (2006.01); H04B 1/00 (2006.01); H04B 1/04 (2006.01); H04B 1/44 (2006.01)
CPC H04B 1/1615 (2013.01) [H04B 1/0078 (2013.01); H04B 1/04 (2013.01); H04B 1/44 (2013.01); H04B 2001/0408 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A wireless single-phase AC-to-AC conversion circuit based on a 2.4G microwave, comprising a receiving antenna unit, a radio frequency (RF) switch unit, a positive voltage rectification unit, a negative voltage rectification unit and an alternating current (AC) synthesis unit;
an output port of the receiving antenna unit is connected to a common input port of the RF switch unit; a first microwave output end of the RF switch unit and a second microwave output end of the RF switch unit are correspondingly connected to a microwave input end of the positive voltage rectification unit and a microwave input end of the negative voltage rectification unit, respectively; a direct current (DC) output end of the positive voltage rectification unit and a DC output end of the negative voltage rectification unit are correspondingly connected to a positive voltage input port of the AC synthesis unit and a negative voltage input port of the AC synthesis unit, respectively; an AC output port of the AC synthesis unit is connected to an AC load;
the receiving antenna unit is configured for receiving microwave energy of a 2.4G microwave wireless transmission transmitter and transmitting the microwave energy to the RF switch unit;
the RF switch unit is configured for transmitting the microwave energy to the positive voltage rectification unit or the negative voltage rectification unit through a control signal;
the positive voltage rectification unit and the negative voltage rectification unit are configured for rectifying the microwave energy into positive DC and negative DC;
the AC synthesis unit is configured for combining the positive DC output by the positive voltage rectifying unit and the negative DC output by the negative voltage rectifying unit to generate square-wave AC, supplying power for the AC load.