Signal Path Loss Simulation of Magnetically-Coupled Intra-Body Communication: An Examination of a Variety of Magnetic Couplings
Signal Path Loss Simulation of Magnetically-Coupled Intra-Body Communication: An Examination of a Variety of Magnetic Couplings
复制标题
磁耦合体内通信的信号路径损耗仿真：对各种磁耦合的检查
DOI：
10.11308/tjsst.9.85
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Kenichi Ito
中科院分区：
文献类型：
--
作者：
Kenichi Ito
本研究探讨了一种利用磁耦合的新型体内通讯方法。为了设计一种利用磁耦合体内通信的通信设备，必须充分了解人体信号的路径损耗特性，并开发一种技术，使其路径损耗最小。本文通过计算机仿真计算了各种磁联轴器的信号路径损耗。所分析的磁耦合包括普通电感耦合（非谐振耦合）和两种谐振耦合。采用包含电路元件的三维有限元模型进行检验。信号路径损耗的频率特性分析结果表明，感应耦合的最佳频段为2 ~ 4 MHz。此外，其中一个谐振耦合可以在2 MHz的谐振频率下将信号路径损耗提高约20 dB。此外，为了验证仿真结果的有效性，本研究实际测量了信号路径损耗。结果表明，仿真结果与实测结果基本吻合。< br >
This study examined a novel intra-body communication method using magnetic coupling. In order to design a communication device using magnetically coupled intra-body communication, it is important to well understand the signal path loss characteristics in a human body and develop a technology so as to minimize its path loss. This study calculated the signal path loss in a variety of magnetic couplings by computer simulation. The magnetic couplings analyzed include normal inductive coupling (non-resonant coupling) and two types of resonant couplings. The 3D finite element model incorporating circuit elements was used for the examination. Results of the frequency characteristics of the signal path loss reveal that the optimal frequency band was between 2 MHz and 4 MHz for inductive coupling. In addition, one of the resonant couplings could improve the signal path loss by approximately 20 dB at a resonant frequency of 2 MHz. Also, in order to verify the validity of the simulation results, this study actually measured the signal path loss. As a result, it was confirmed that the simulation and the measurement results almost agreed.< br>