Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Analysis of Efficiencies for Multiple-Input Multiple-Output Wireless Power Transfer Systems

  • Kim, Sejin (Department of Electronic and Radio Engineering, Kyung Hee University) ;
  • Lee, Bomson (Department of Electronic and Radio Engineering, Kyung Hee University)
  • Received : 2016.01.04
  • Accepted : 2016.04.04
  • Published : 2016.04.30
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Abstract

Wireless power transfer (WPT) efficiencies for multiple-input multiple-output (MIMO) systems are formulated with a goal of achieving their maximums using Z matrices. The maximum efficiencies for any arbitrarily given configurations are obtained using optimum loads, which can be determined numerically through adequate optimization procedures in general. For some simpler special cases (single-input single-output, single-input multiple-output, and multiple-input single-output) of the MIMO systems, the efficiencies and optimum loads to maximize them can be obtained using closed-form expressions. These closed-form solutions give us more physical insight into the given WPT problem. These efficiencies are evaluated theoretically based on the presented formulation and also verified with comparisons with circuit- and EM-simulation results. They are shown to lead to a good agreement. This work may be useful for construction of the wireless Internet of Things, especially employed with energy autonomy.

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References

  1. B. K. Chung and H. T. Chuah, "Design and construction of a multipurpose wideband anechoic chamber," IEEE Antennas and Propagation Magazine, vol. 45, no. 6, pp. 41-47, 2003.
  2. A. Kazemzadeh and A. Karlsson, "Capacitive circuit method for fast and efficient design of wideband radar absorbers," IEEE Transactions on Antennas and Propagation, vol. 57, no. 8, pp. 2307-2314, 2009. https://doi.org/10.1109/TAP.2009.2024490
  3. J. Tak, Y. Lee, and J. Choi, "Design of a metamaterial absorber for ISM applications," Journal of Electromagnetic Engineering and Science, vol. 13, no. 1, pp. 1-7, 2013. https://doi.org/10.5515/JKIEES.2013.13.1.1
  4. X. Shen, T. Cui, J. Zhao, H, Ma. W. Jiang, and H. Li, "Polarization independent wide-angle triple-band metamaterial absorber," Optics Express, vol. 19, no. 10, pp. 9401-9407, 2011. https://doi.org/10.1364/OE.19.009401
  5. H. Li, L. H. Yuan, B. Zhou, X. P. Shen, Q. Cheng, and T. J. Cui, "Ultrathin multiband gigahertz metamaterial absorbers," Journal of Applied Physics, vol. 110, no. 1, article no. 014909, 2011.
  6. R. L. Fante and M. T. McCormack, "Reflection properties of the Salisbury screen," IEEE Transactions on Antennas Propagation, vol. 36, no.10, pp. 1443-1454, 1988. https://doi.org/10.1109/8.8632
  7. A. P. Sohrab and Z. Atlasbaf, "A circuit analog absorber with optimum thickness and response in X-band," IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 276-279, 2013. https://doi.org/10.1109/LAWP.2013.2248073
  8. G. R. Zhang, P. H. Zhou, H. B. Zhang, L. B. Zhang, J. L. Xie, and L. J. Deng, "Analysis and design of triple-band high-impedance surface absorber with periodic diversified impedance," Journal of Applied Physics, vol. 114, no. 16, article no. 164103, 2013.
  9. B. K. Kim and B. Lee, "Design of metamaterial-inspired wideband absorber at X-band adopting trumpet structures," Journal of Electromagnetic Engineering and Science, vol. 14, no. 3, pp. 314-316, 2014. https://doi.org/10.5515/JKIEES.2014.14.3.314
  10. G. Kim and B. Lee, "Design of wideband absorbers using RLC screen," Electronics Letters, vol. 51, no. 11, pp. 834-836, 2015. https://doi.org/10.1049/el.2014.4084
  11. B. K. Kim and B. Lee, "Wideband absorber at X-band adoption resistive trumpet structures," Electronics Letters, vol. 50, no. 25, pp. 1957-1959, 2014. https://doi.org/10.1049/el.2014.2780
  12. F. Costa, S. Genovesi, A. Monorchio, and G. Manara, "Low-cost metamaterial absorbers for sub-GHz wireless system," IEEE Antennas and Wireless Propagation Letters, vol.13, pp. 27-30, 2014. https://doi.org/10.1109/LAWP.2013.2294791
  13. H. Zhang, P. Zhou, H. Lu, Y. Xu, J. Xie, and L. Deng, "Soft-magnetic-film based metamaterial absorber" Electronics Letters, vol. 48, no. 8, pp. 435-437, 2012. https://doi.org/10.1049/el.2011.3618
  14. S. Ghosh and K. V. Srivastava, "An equivalent circuit model of FSS-based metamaterial absorber using coupled line theory," IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 511-514, 2015. https://doi.org/10.1109/LAWP.2014.2369732
  15. Y. Cheng, H. Yang, and N. Wu, "Perfect metamaterial absorber based on a split-ring-cross resonator," Applied Physics A, vol. 102, no. 1, pp. 99-103, 2011. https://doi.org/10.1007/s00339-010-6022-4

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