High-efficiency rectifying circuit for 5.8 GHz wireless RF energy harvesting applications

被引：0
|
作者：
Huang, Yanhu [1 ]
Liang, Jiajun [1 ,2 ,3 ]
Wang, Qiang [1 ]
Chen, Tiejun [1 ]
机构：
[1] Yulin Normal Univ, Univ Key Lab Complex Syst Optimizat & Big Data Pro, Guangxi Coll, Yulin 537000, Peoples R China
[2] South China Univ Technol, Sch Elect Informat Engn, Guangzhou, Peoples R China
[3] Guangdong Shenglu Telecommun Tech Co Ltd, Foshan, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2024年 / 21卷 / 04期
关键词：
energy harvesting; rectifying circuit; harmonic suppression; high efficiency; DUAL-BAND RECTENNA; POWER TRANSMISSION; MICROWAVE; ANTENNA; ARRAYS;
D O I：
10.1587/elex.21.20230625
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high efficiency rectifying circuit with multi-section impedance conversion and harmonic suppression is proposed. A shorted stub is used to compensate the rectifying diode capacitive impedance. Furthermore, a matching filter network is integrated at the DC output port to eliminate the fundamental and high order harmonics which are generated by the diode nonlinearity. The above efforts could effectively improve the conversion efficiency of rectifying circuit. A wireless RF power transmission experiment is implemented, the output voltage is 2.003 V with the distance between the transmitting and receiving antenna is 1 m. The output voltage is linear with the transmission distance, and the maximum output voltage can reach 3.17 V. Experimental results show that the proposed rectifying circuit achieves high rectifying efficiency of 59.6% at 5.8 GHz.
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收藏
页数：5
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