Rectenna structure analysis for ambient RF Energy Harvesting

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Authors

  • Nguyen Thuy Linh (Corresponding Author) Le Quy Don Technical University
  • Nguyen Huy Hoang Le Quy Don Technical University
  • Luong Duy Manh Le Quy Don Technical University

DOI:

https://doi.org/10.54939/1859-1043.j.mst.89.2023.25-34

Keywords:

RF energy harvesting; Rectenna; Q factor; Passive gain; Bandwidth.

Abstract

The paper proposes an efficient structure of RF Energy Harvesting (RFEH) system that can improve efficiency of the system. The paper analysis and indicate relationships between characteristics of the RFEH system such as: center frequency, bandwidth, Q factor, passive gain, and number of rectifier stages. After that, paper proposes design steps to design the RFEH system in which high enough Q and wide bandwidth are guaranteed. The RFEH system is designed and tested to proved the effectiveness of the proposed method. Mesurement results show that a sensitivity of 1V output DC voltage reaches at -20 dBm input power of 950 MHz signal. The power conversion efficiency (PCE) of the system is 57% at -10 dBm input level. The system can generate 3.58  output power when input power of the LTE signal is -19.4 dBm.

References

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Published

25-08-2023

How to Cite

Linh, N. T., H. Nguyen Huy, and M. Luong Duy. “Rectenna Structure Analysis for Ambient RF Energy Harvesting”. Journal of Military Science and Technology, vol. 89, no. 89, Aug. 2023, pp. 25-34, doi:10.54939/1859-1043.j.mst.89.2023.25-34.

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