Electric Power ›› 2021, Vol. 54 ›› Issue (10): 134-143,195.DOI: 10.11930/j.issn.1004-9649.202009034

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Design of Matching Network for Magnetic Field Energy Harvesting in Wide Frequency Range

NIE Qingqing, PENG Han, LI Hongbin, KANG Yong   

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2020-09-04 Revised:2021-09-03 Online:2021-10-05 Published:2021-10-16
  • Supported by:
    This work is supported by National Natural Science Foundation of China (Research on High-Power-Density Resonant Gate Driver with Driving Loss and Silicon Carbide Device Loss Co-optimization, No.52007077) and the Fundamental Research Funds for the Central Universities (No.2019KFYXKJC014)

Abstract: Magnetic field induction energy harvesting is an effective solution for self-powered sensors in electromagnetic environment. Different from electric field and RF energy of single frequency, the electromagnetic field in power conversion systems contain wide frequency ranges. To increase the power density of self-powering module, it is important to harvest as much as power within limited volume. A dual-resonance bandpass filtering network is thus proposed. Furthermore, the output characteristics of the single LC resonant network and dual-resonance bandpass network are compared under different current patterns and load conditions. The suitable application conditions for dual-resonance bandpass network are summarized.

Key words: electromagnetic energy harvesting, high frequency, wide frequency range, singe LC resonant network, dual-resonance bandpass network, output power