Dynamic gain wireless energy transmission system and method based on time reversal
A technology of time reversal and wireless energy transmission, which is applied in transmission systems, antenna unit combinations with different polarization directions, antennas, etc., can solve the problems of uncontrollable output amplitude and low efficiency, avoid signal synchronous processing, and improve accuracy And stability, improve the effect of energy transmission efficiency
Active Publication Date: 2021-09-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0005] The purpose of the present invention is to overcome the existing defects of the above-mentioned technologies, and provide a time-reversal high-efficiency dynamic gain wireless energy transmission system and method based on negative feedback amplifiers, which are used to solve the problems of low efficiency and output Technical problems such as uncontrollable amplitude
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[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0045] Such as figure 1 As shown, a time-reversal-based dynamic gain wireless energy transmission system in this embodiment includes a main control module, a time-reversal antenna array, and a feed network.
[0046] The main control module is used to control the mode jump of the feed network, provide time inversion processing, and provide an initial energy transmission signal to the first-stage feed unit. The main control module includes a communication module, a control module, and an RF signal source; the communication module is used to receive the request signal transmitted by the energy receiving end; the control module controls the mode jump of the feeding network according to the request signal; the RF signal source is used to send the first The stage feed unit provides the initial energy delivery signal.
[0047] The time-reversal antenna array...
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The invention discloses a high-efficiency dynamic gain wireless energy transmission system and method based on time reversal, and belongs to the technical field of wireless energy transmission. According to the wireless energy transmission system and method, the power detection module and the gain control module are utilized, data are provided for amplifier gain control according to the current-level power information and the lower-level feedback power information, whether the power of the actual energy transmission signal meets the power requirement or not can be detected, and the amplifier gain is dynamically adjusted according to the detection result. The precision and the stability of the energy transmission system can be effectively improved.
Description
technical field [0001] The invention belongs to the technical field of wireless energy transmission, and in particular relates to a high-efficiency dynamic gain wireless energy transmission system and method based on time inversion. Background technique [0002] In recent years, the commercial deployment of 5G has been rapidly implemented. In indoor scenarios such as smart factories and smart homes, a large number of sensor devices are used to monitor various parameters in production and life, reducing labor costs and improving production efficiency. It is an essential part of production and life. Usually, these sensors have small battery capacity, large numbers, and difficult power supply. Therefore, how to solve the problem of power supply for massive sensors is an important pain point for smart factories and smart homes. The use of wireless power supply makes these problems easily solved. The existing Wireless Power Transfer (WPT) technology is mainly performed through ...
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Login to View More IPC IPC(8): H04B1/04H02J50/00H02J50/23H02J50/27H02J50/60H02J50/90H01Q23/00H01Q21/24H01Q1/50
CPCH04B1/04H02J50/005H02J50/23H02J50/27H02J50/90H02J50/60H01Q23/00H01Q21/24H01Q1/50H04B2001/0408H04B2001/0433
Inventor 马鑫胡林赵德双杨刚翟浩
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA