Research on development of band-selective electromagnetic shielding materials using non-metal periodic structures and its adaptation to medical electromagnetic environment

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06024
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Oita University
• Principal Investigator: KUDOU Takato 大分大学, 理工学部, 教授 (60225159)
• Co-Investigator(Kenkyū-buntansha): 花田 英輔 佐賀大学, 工学(系)研究科(研究院), 教授 (90244095)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 帯域的電磁波遮へい / 周期構造 / シミュレーション / 医療電磁環境

Outline of Final Research Achievements

We have investigated a method to achieve band-selective electromagnetic shield in view of keeping required wireless communications and intercepting undesired electromagnetic waves in medical institutions. We have noticed the band-gap (band-stopping) characteristic of photonic crystal, which is a kind of periodic structures, and have performed computer simulations concerned with the reflection and transmission of electromagnetic waves by adapting two-dimensional and three-dimensional non-metal photonic crystals to microwave band. We have analyzed the frequency and spatial characteristics for some kinds of periodic structures, and have obtained fundamental data for making band-selective shielding materials. The trial production of the materials and the experiment for evaluating the characteristic of them are future subjects.

Free Research Field

電磁波工学（電磁波諸現象に関する理論解析と数値解析）