Abstract:
The human body whose electrical behavior depends on the frequency, should be considered in the modern design of wireless devices, which are used in proximity of the human body. However, the complexity of the modeling may depend not only on the frequency but also the individual variabilities, environmental factors, size of the devices and use scenarios. In this lecture, first, a discussion on modeling of the human body in the electromagnetics for different cases is provided. Then, the effect of the human presence on the wireless devices including wireless communication terminals and wireless power transfer systems is explained considering typical exposure scenarios. The electromagnetic fields emitted from the electrostatic discharge is also discussed.
Speaker Biography:
Prof. Hirata (S’98–M’01–SM’10–F’17) received the B.E., M.E., and Ph.D. degree in communications engineering from Osaka University, Suita, Japan, in 1996, 1998, and 2000, respectively. From 1999 to 2001, he was a Research Fellow of the Japan Society for the Promotion of Science, and also a Visiting Research Scientist at the University of Victoria, BC, Canada, in 2000. In 2001, he joined the Department of Communications Engineering, Osaka University, as an Assistant Professor. In 2004, he moved to Nagoya Institute of Technology where he is currently a Full Professor and Director of Research Center. His research interests include electromagnetic safety, EMC, antennas, filters, risk management system for heat-related illness, methods in neuroscience, and related computational techniques. Prof. Hirata is an Associate Editor of the IEEE Transactions on EMC and an editorial board member of Physics in Medicine and Biology.
He is a member of the main commission and Chair of a project group of the International Commission on Non-Ionizing Radiation Protection (ICNIRP) since 2015, a member of its administrative committee and a subcommittee (EMF Dosimetry Modeling), Chair of IEEE International Committee on Electromagnetic Safety (ICES) since 2014, and an expert of the World Health Organization. From 2006 to 2012, he was also an Associate Editor of the IEEE Transactions on Biomedical Engineering. He received several awards including Young Scientists’ Prize (2006) and Prizes for Science and Technology (Research Category 2011, Public Understanding Promotion Category 2014, 2020) by the Commendation for Science and Technology from the Minister of Education, Culture, Sports, Science, and Technology, Japan. In 2015, he received the IEEE EMC-S Technical Achievement Award as well as the Japan Academy Medal and JSPS Prize (2018). He is a Fellow of Institute of Physics and IEICE.
