Characterization of the implantable intra-body communication based on capacitive coupling by transfer function

Implanted miniaturized device could enable efficient healthcare and clinical applications, such as monitoring, diagnosis and treatment. In this paper, characterization of the implantable intra-body communication based on capacitive coupling has been researched. The transfer function of implantable intra-body communication based on capacitive coupling was derived and the corresponding parameters were discussed. The validity of the developed model has been verified by measurements. Finally, the characteristics of this communication mode have been discussed in detail, while some important conclusion has been achieved. Our results indicate that the implantable intra-body communication based on capacitive coupling can be regarded as a potential ideal way for the communication among implanted devices.