Precise Numerical Simulation of Electromagnetic Influences toward Fetus and Pregnant Woman from Digital Wave Exposure in Daily Life

2017 Fiscal Year Final Research Report

• Project/Area Number: 25350527
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biomedical engineering/Biomaterial science and engineering
• Research Institution: Kurume National College of Technology
• Principal Investigator: Wuren Tuya (烏仁図雅) 久留米工業高等専門学校, 電気電子工学科, 准教授 (80401800)
• Co-Investigator(Renkei-kenkyūsha): FUJII MASAFUMI 富山大学, 大学院理工学研究部(工学), 准教授 (60361945) ; OHIRA TAKASHI 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (30395066)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 電磁波 / 人体 / FDTD法 / 周波数依存性 / 周波数分散 / ディジタル変調波 / 胎児

Outline of Final Research Achievements

In this study, we have investigated numerically in detail electromagnetic wave absorption and electromagnetic field strength in a pregnant woman and an adult head by considering the frequency dependency of all tissues in human body, while it is difficult to consider with commercial software. We have analyzed simple sine waves including leak electromagnetic wave from household electrical appliances, and digital modulation waves used for modern telecommunication systems as irradiation waves. The results show that, as the size of the head comes closer to those that may cause an electromagnetic resonance at a certain frequency of our interest, the energy absorption increases, and that the intensity of the electromagnetic field is more intense for steeper transition of digital signals. These results are expected to provide data that are useful for the construction of future telecommunication systems.

Free Research Field

高周波回路解析設計・電磁波解析