Open AccessPropagation characteristics of electromagnetic wave on multiple tissue interfaces in wireless deep implant communication
Author(s) -
Chen Zhi Ying,
Gao Yue Ming,
Du Min
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.5315
Subject(s) - wireless , transmission (telecommunications) , finite element method , multiphysics , implant , channel (broadcasting) , computer science , physical layer , biomedical engineering , incidence (geometry) , planar , acoustics , electronic engineering , engineering , telecommunications , physics , optics , surgery , medicine , structural engineering , computer graphics (images)
The use of wireless networked miniaturised medical implants is promising a significant leap forward in health monitoring and medical treatment. In contrast to conventional wireless communication which takes place over the air, implant communication through the body poses unique challenges. Considering there is less literature available on out‐to‐in and in‐to‐out propagation mechanisms on the different tissue interfaces for deep implant communication, in this study, the multi‐layered planar model and the mathematical equations of multiple incidence are proposed to calculate and analyse some key transmission characteristics of body channel. The authors take human arm as the research object, and compute four cases of electromagnetic wave normal incidence on multi‐layer human body tissues with different positions of the deep implant at the frequency of 10 Hz–100 GHz. They also establish a simulation model of normal incidence on three‐layer human body tissues at a frequency of 2.45 GHz based on the finite‐element method in COMSOL Multiphysics. The relative differences in simulation results are all <3.14%, which show a good agreement with the theoretical calculation results.