Characterization of the Fat Channel for Intra-Body Communication at R-Band Frequencies

Noor Badariah Asan*, Emadeldeen Hassan, Jacob Velander, Syaiful Redzwan Mohd Shah, Daniel Noreland, Taco J. Blokhuis, Eddie Wadbro, Martin Berggren, Thiemo Voigt, Robin Augustine*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


In this paper, we investigate the use of fat tissue as a communication channel between in-body, implanted devices at R-band frequencies (1.7-2.6 GHz). The proposed fat channel is based on an anatomical model of the human body. We propose a novel probe that is optimized to efficiently radiate the R-band frequencies into the fat tissue. We use our probe to evaluate the path loss of the fat channel by studying the channel transmission coefficient over the R-band frequencies. We conduct extensive simulation studies and validate our results by experimentation on phantom and ex-vivo porcine tissue, with good agreement between simulations and experiments. We demonstrate a performance comparison between the fat channel and similar waveguide structures. Our characterization of the fat channel reveals propagation path loss of similar to 0.7 dB and similar to 1.9 dB per cm for phantom and ex-vivo porcine tissue, respectively. These results demonstrate that fat tissue can be used as a communication channel for high data rate intra-body networks.
Original languageEnglish
Article number2752
Number of pages16
Issue number9
Publication statusPublished - 1 Sept 2018


  • intra-body communication
  • path loss
  • microwave probes
  • channel characterization
  • fat tissue
  • ex-vivo
  • phantom
  • dielectric properties
  • topology optimization
  • GHZ


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