Analysis of wave propagation on human body based on stratified media model

Human body communication (HBC) is a promising near-field communication (NFC) method emerging in recent years. But existing theoretical models of HBC are too simple to simulate the wave propagation on human body. In this work, in order to clarify the propagation mechanism of electromagnetic wave on h...

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Bibliographic Details
Published inJournal of Central South University Vol. 20; no. 12; pp. 3545 - 3551
Main Authors Ma, Li, Shen, Hai-bin, Liu, Lei
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2013
Subjects
Engineering
Metallic Materials
propagation constant; attenuation constant
propagation mechanism
surface waveguide
stratified media
human body communication
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Summary:Human body communication (HBC) is a promising near-field communication (NFC) method emerging in recent years. But existing theoretical models of HBC are too simple to simulate the wave propagation on human body. In this work, in order to clarify the propagation mechanism of electromagnetic wave on human body, a surface waveguide HBC theoretical model based on stratified media cylinder is presented. A numerical model analyzed by finite element method (FEM) is used for comparing and validating the theoretical model. Finally, results of theoretical and numerical models from 80 MHz to 200 MHz agree fairly well, which means that theoretical model can characterize accurate propagation mechanism of HBC signal. Meanwhile, attenuation constants derived from two kinds of models are within the range from 1.64 to 3.37, so that HBC signal can propagate effectively on human body. The propagation mechanism derived from the theoretical model is useful to provide design information for the transmitter and the modeling of the propagation channel in HBC.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-013-1880-5