Abstract
Human body communication (HBC) has the advantages of low power consumption, low radiation and anti-interference ability, which has broad application prospects in entertainment and health care. Accurate human channel characteristics will contribute to the development of HBC. This paper explores the effect of channel length and electrode size on human body channel phase characteristic. A galvanic coupling human body communication experimental platform was built. The measurement results show that in the low frequency band, the phase transition is less than the high frequency. When the frequency is in the range of 200 kHz to 300 kHz, the phase will oscillate. Increasing the electrode size can improve phase oscillation. This paper provides a reference for the application of human body communication in long channel and the miniaturization design of transceiver.
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Acknowledgment
This work was supported by the National Natural Science Foundation of China U1505251 and 61201397, the Project of Chinese Ministry of Science and Technology 2016YFE0122700, and the S&T Project of Fujian Province 2018I0011.
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Chen, W. et al. (2020). An Investigation on Phase Characteristics of Galvanic Coupling Human Body Communication. In: Lin, KP., Magjarevic, R., de Carvalho, P. (eds) Future Trends in Biomedical and Health Informatics and Cybersecurity in Medical Devices. ICBHI 2019. IFMBE Proceedings, vol 74. Springer, Cham. https://doi.org/10.1007/978-3-030-30636-6_46
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DOI: https://doi.org/10.1007/978-3-030-30636-6_46
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