A device for electromagnetic energy absorption and conversion was investigated as an electromagnetic energy harvester, which is based on a four-ring multi-resistance unit. The device can convert microwave energy to thermal energy and then to electrical energy through the Bi2Te3 thermoelectric material adhered to the load resistance. The energy harvesting efficiency, power loss distribution, and current density distribution of the harvester were analyzed. In addition, the energy harvesting efficiency of the unit under different incident angles and polarization angles was studied, and the effect of incident power on the temperature and energy conversion efficiency of the unit was analyzed. The simulation results showed that the energy harvesting efficiency of the harvester reaches 99.5% at 5.8 GHz. Each unit in the harvester can generate an output voltage of 171.8 mV under 7 W incident wave power, and the maximum output power is 9.71 mW. To verify the effectiveness of this method, a 5 × 5 unit array model was fabricated and measured, and the measurement results were consistent with the simulation results.
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9 October 2023
Research Article|
October 10 2023
Research on electromagnetic energy absorption and conversion device with four-ring multi-resistance structure
Han Xiong
;
Han Xiong
a)
(Conceptualization, Methodology, Project administration, Writing – review & editing)
1
State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University
, Chongqing 40044, China
a)Author to whom correspondence should be addressed: Hxiong@cqu.edu.cn
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Xiaodong Ma
;
Xiaodong Ma
(Investigation, Software, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
School of Microelectronics and Communication Engineering, Chongqing University
, Chongqing 400044, China
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Haisheng Liu;
Haisheng Liu
(Formal analysis, Validation)
1
State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University
, Chongqing 40044, China
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Dongping Xiao
;
Dongping Xiao
(Funding acquisition, Methodology, Project administration, Resources, Supervision)
1
State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University
, Chongqing 40044, China
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Huaiqing Zhang
Huaiqing Zhang
(Data curation, Formal analysis, Funding acquisition, Investigation, Methodology)
1
State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University
, Chongqing 40044, China
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a)Author to whom correspondence should be addressed: Hxiong@cqu.edu.cn
Appl. Phys. Lett. 123, 153902 (2023)
Article history
Received:
August 04 2023
Accepted:
September 14 2023
Connected Content
A companion article has been published:
Wireless microwave energy harvester uses electromagnetic metamaterials to power electrical devices
Citation
Han Xiong, Xiaodong Ma, Haisheng Liu, Dongping Xiao, Huaiqing Zhang; Research on electromagnetic energy absorption and conversion device with four-ring multi-resistance structure. Appl. Phys. Lett. 9 October 2023; 123 (15): 153902. https://doi.org/10.1063/5.0170827
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