Abstract

Implant intra-body communication (IBC) provides a data transmission method between sensor units which implanted in human body. Compared with the wearable sensors, the implantable devices have significant applications in biomedical monitoring system which is used for monitoring patient’s condition. In this paper, IBC among implanted sensors based on capacitive coupling has been proposed, and the circuit model of implant capacitive coupling IBC was proposed. Furthermore, the transfer function was derived from the model and the parameters in the circuit model were calculated. Finally, the simulations were carried out along different signal transmission distances and different heights to the ground based on the transfer function method. The results indicate that the mathematical simulation based on the proposed transfer function offers an important approach to analyse the characteristic of implant intra-body communication based on capacitive coupling.

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