Abstract
A wireless body area network (WBAN) consists of a wireless network with devices placed close to, attached on, or implanted into the human body. Wireless communication within a human body experiences loss in the form of attenuation and absorption. A path loss model is necessary to account for these losses. In this article, path loss is studied in the heterogeneous anatomical model of a 6-year male child from the Virtual Family using an implantable slot dipole conformal flexible antenna and an in-body path loss model is proposed at 2.45 GHz with application to implants in a human body. The model is based on 3D electromagnetic simulations and is compared to models in a homogeneous muscle tissue medium.
Highlights
A wireless body area network (WBAN) is a network, consisting of nodes that communicate wirelessly and are located on or in the body of a person
A shift of the resonance frequency of the antenna can be observed when placed in different tissues, still the values of the |S11| in all the scenarios are below -10 dB in the complete ISM band from 2.40 to 2.48 GHz and the antenna is suitable for in-body propagation with an ohmic loss of 2.5%
The path loss in homogeneous human muscle tissue and various heterogeneous media using implantable slot dipole conformal flexible antennas is investigated at 2.45 GHz
Summary
A wireless body area network (WBAN) is a network, consisting of nodes that communicate wirelessly and are located on or in the body of a person. These nodes form a network that extends over the body of the person. The use of active implants allows vital medical data to be collected over a longer period in the natural environment of the patient, allowing for a more accurate and sometimes even faster diagnosis.
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