Microwave Wireless Power Transmission Inside a Closed Cavity Based on Novel Frequency Controlling

JING Xiao-wei; JING Jian-wei; YAN Li-ping; LIU Chang-jun

doi:10.12263/DZXB.20230932

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Microwave Wireless Power Transmission Inside a Closed Cavity Based on Novel Frequency Controlling

PAPERS | 更新时间：2025-12-24

- Microwave Wireless Power Transmission Inside a Closed Cavity Based on Novel Frequency Controlling
- ACTA ELECTRONICA SINICA Vol. 52, Issue 7, Pages: 2257-2261(2024)
- 作者机构：
  
  四川大学电子信息学院，四川成都 610064
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(U22A2015;62071316)
- DOI：10.12263/DZXB.20230932
  CLC： TN91;TM724.1
- Received：07 October 2023，
  
  Revised：2024-03-06，
  
  Published：25 July 2024
- 稿件说明：
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敬小炜, 景建伟, 闫丽萍, 等. 基于频率控制的封闭腔体微波无线输能技术[J]. 电子学报, 2024, 52(07): 2257-2261.

JING Xiao-wei, JING Jian-wei, YAN Li-ping, et al. Microwave Wireless Power Transmission Inside a Closed Cavity Based on Novel Frequency Controlling[J]. Acta Electronica Sinica, 2024, 52(07): 2257-2261.
敬小炜, 景建伟, 闫丽萍, 等. 基于频率控制的封闭腔体微波无线输能技术[J]. 电子学报, 2024, 52(07): 2257-2261. DOI：10.12263/DZXB.20230932

JING Xiao-wei, JING Jian-wei, YAN Li-ping, et al. Microwave Wireless Power Transmission Inside a Closed Cavity Based on Novel Frequency Controlling[J]. Acta Electronica Sinica, 2024, 52(07): 2257-2261. DOI：10.12263/DZXB.20230932

摘要

随着航空航天技术的快速发展，封闭腔体内的无线能量传输（Wireless Power Transmission，WPT）技术开始受到广泛关注.基于频率控制的WPT技术，可实现对电大封闭腔体（10

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1.52400005

2.28600001

）内的多方位传感器进行可控和高效的无线充电.电大腔体内的电场分布对频率的变化敏感，利用频率变化实现对封闭腔体场分布控制.实验结果表明，在S波段的1 m

腔体最高WPT传输效率为96.6%.设计的宽带整流电路实测整流效率最高为80%，整流效率高于50%的带宽为1.65 GHz.在2.401~2.495 GHz频段实现控制双接收机的不同工作状态，展现其在航空航天器等封闭空间中为传感器无线供电的应用前景.

Abstract

With the rapid development of aerospace technology

wireless power transmission (WPT) in the closed cavity has attracted extensive attention.WPT based on frequency control is proposed

which can realize controllable

and high-efficiency wireless charging of multi-directional sensors in electrically large closed cavities (10

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1.52400005

2.28600001

).The electric field distribution in an electrically large cavity is very sensitive to the change of frequency

and the field distribution in the closed cavity can be controlled by changing frequency.The experimental results show that the highest WPT efficiency at S-band is 96.6%. The measured rectification efficiency of the designed broadband rectifier circuit is up to 80%

and the bandwidth with rectification efficiency higher than 50% is 1.65 GHz.The different working states of dual receivers can be controlled in the frequency band from 2.401~2.495 GHz

which shows its application prospect in

wireless power supply for sensors in closed spaces such as aerospace vehicles.

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references

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