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Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array

Author

Listed:
  • Haiyue Wang

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

  • Lianwen Deng

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

  • Heng Luo

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

  • Junsa Du

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

  • Daohan Zhou

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

  • Shengxiang Huang

    (School of Physcis and Electronics, Central South University, Changsha 410083, China)

Abstract

The microwave wireless power transfer (MWPT) technology has found a variety of applications in consumer electronics, medical implants and sensor networks. Here, instead of a magnetic resonant coupling wireless power transfer (MRCWPT) system, a novel MWPT system based on a frequency reconfigurable (covering the S-band and C-band) microstrip patch antenna array is proposed for the first time. By switching the bias voltage-dependent capacitance value of the varactor diode between the larger main microstrip patch and the smaller side microstrip patch, the working frequency band of the MWPT system can be switched between the S-band and the C-band. Specifically, the operated frequencies of the antenna array vary continuously within a wide range from 3.41 to 3.96 GHz and 5.7 to 6.3 GHz. For the adjustable range of frequencies, the return loss of the antenna array is less than −15 dB at the resonant frequency. The gain of the frequency reconfigurable antenna array is above 6 dBi at different working frequencies. Simulation results verified by experimental results have shown that power transfer efficiency (PTE) of the MWPT system stays above 20% at different frequencies. Also, when the antenna array works at the resonant frequency of 3.64 GHz, the PTE of the MWPT system is 25%, 20.5%, and 10.3% at the distances of 20 mm, 40 mm, and 80 mm, respectively. The MWPT system can be used to power the receiver at different frequencies, which has great application prospects and market demand opportunities.

Suggested Citation

  • Haiyue Wang & Lianwen Deng & Heng Luo & Junsa Du & Daohan Zhou & Shengxiang Huang, 2021. "Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array," Energies, MDPI, vol. 14(2), pages 1-12, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:415-:d:479832
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    References listed on IDEAS

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    1. Jae Yong Seong & Sang-Sun Lee, 2019. "Optimization of the Alignment Method for an Electric Vehicle Magnetic Field Wireless Power Transfer System Using a Low-Frequency Ferrite Rod Antenna," Energies, MDPI, vol. 12(24), pages 1-47, December.
    2. Silvano Cruciani & Tommaso Campi & Francesca Maradei & Mauro Feliziani, 2020. "Active Shielding Design and Optimization of a Wireless Power Transfer (WPT) System for Automotive," Energies, MDPI, vol. 13(21), pages 1-12, October.
    3. Dong-Hun Woo & Hwa-Rang Cha & Rae-Young Kim, 2020. "Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems," Energies, MDPI, vol. 13(21), pages 1-15, October.
    4. Michal Frivaldsky & Miroslav Pavelek, 2020. "In Loop Design of the Coils and the Electromagnetic Shielding Elements for the Wireless Charging Systems," Energies, MDPI, vol. 13(24), pages 1-18, December.
    5. Yang Yang & Jinlong Cui & Xin Cui, 2020. "Design and Analysis of Magnetic Coils for Optimizing the Coupling Coefficient in an Electric Vehicle Wireless Power Transfer System," Energies, MDPI, vol. 13(16), pages 1-15, August.
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    Cited by:

    1. Chan-Mi Song & Hong-Jun Lim & Son Trinh-Van & Kang-Yoon Lee & Youngoo Yang & Keum-Cheol Hwang, 2021. "Dual-Band RF Wireless Power Transfer System with a Shared-Aperture Dual-Band Tx Array Antenna," Energies, MDPI, vol. 14(13), pages 1-17, June.
    2. Xinyuan Li & Hui Xiao & Huaiqing Zhang & Zhewei Liu & Wenxiong Peng, 2022. "A 5.8 GHz π -Stub Decoupling Network for Receiving Antenna Arrays in Microwave Wireless Power Transmission," Energies, MDPI, vol. 15(22), pages 1-13, November.

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