Attenuation in Transferred RF Power to a Biomedical Implant due to the Absorption of Biological Tissue

In a transcutanious inductive coupling of a biomedical implant, a new formula is given for the study of the Radio Frequency power attenuation by the biological tissue. The loss of the signal power is related to its interaction with the biological tissue and the composition of this one. A confrontation with the practical measurements done with a synthetic muscle into a Faraday cage, allowed a checking of the obtained theoretical results. The supply/data transfer systems used in the case of biomedical implants, can be well dimensioned by taking in account this type of power attenuation.

Authors:

• Batel Noureddine
• Mehenni Mohamed
• Kouadik Smain

Keywords:

• Biological tissue
• coupled coils
• implanted device
• power attenuation.

References:

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