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Enhanced Scattering by Wearable Objects in Wireless Power Transfer Links: Case Studies

Author

Listed:
  • Ludovica Tognolatti

    (Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy)

  • Cristina Ponti

    (Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy)

  • Giuseppe Schettini

    (Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy)

Abstract

Wireless power transfer (WPT) systems have ushered in a new era for wearable and implantable technologies, introducing opportunities for enhanced device functionality. A pivotal aspect in improving these devices is the optimization of electromagnetic transmission. This paper presents several solutions to improve electromagnetic transmission to an implantable/wearable device. Several scatterers are considered to mimic objects that can be easily worn by a patient, such as necklaces and bracelets, or easily integrated into textile fabric. An analytical method is employed to address the scattering by cylindrical objects above a biological tissue, modeled as a multilayer. Expansions into cylindrical waves, also represented through plane-wave spectra, are used to express the scattered fields in each medium. Numerical results for both the case of conducting and of dielectric cylindrical scatterers are presented at a frequency of the Industrial, Scientific and Medical band ( f = 2.45 GHz), showing possible configurations of worn objects for electromagnetic field intensification.

Suggested Citation

  • Ludovica Tognolatti & Cristina Ponti & Giuseppe Schettini, 2024. "Enhanced Scattering by Wearable Objects in Wireless Power Transfer Links: Case Studies," Mathematics, MDPI, vol. 12(17), pages 1-16, August.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:17:p:2606-:d:1462188
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