Sensors (Feb 2024)

Deeply Implanted Conformal Antenna for Real-Time Bio-Telemetry Applications

  • Ladislau Matekovits,
  • Farzad Mir,
  • Gianluca Dassano,
  • Ildiko Peter

DOI
https://doi.org/10.3390/s24041170
Journal volume & issue
Vol. 24, no. 4
p. 1170

Abstract

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The design and experimental verification of a deeply implanted conformal printed antenna is presented. The hip implant acts as the ground plane for a coaxial-cable-fed trapezoidal radiator designed to transmit biological signals collected within the body by proper biosensors. The arrangement, consisting of a metallic (or equivalent) hip implant, bio-compatible gypsum-based dielectric, and conformal radiator, was tested when the hosting 3D-printed plastic bone was immersed in tissue-like liquid contained in a plastic bucket. The dimensions of the set-up are similar to a human leg. Matching and radiation characteristics are presented in the industrial, scientific, and medical (ISM) frequency band (2.4–2.5 GHz), showing the feasibility of the proposed arrangement.

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