Research on electromagnetic wave scattering wall to control of radio wave propagation indoor in next-generation wireless communications

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K14744
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 21020:Communication and network engineering-related
• Research Institution: The University of Electro-Communications (2021-2022); National Institute of Information and Communications Technology (2020)
• Principal Investigator: Murakami Yasutaka 電気通信大学, 大学院情報理工学研究科, 助教 (70849041)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: メタマテリアル / 電波伝搬 / 反射板 / 電波散乱

Outline of Final Research Achievements

In this research, an electromagnetic scattering wall to control the scattered waves in order to improve quality of the next-generation wireless communications the in an out-of-sight area.
A design method of an electromagnetic scattering wall for multiple direction scattering was proposed. We also introduced fast design and optimization methods using equivalent circuits of metamaterials, antenna array theory, and the genetic algorithm. A received signal strength was measured in the 28 GHz band using the designed electromagnetic scattering wall, and the effect of improving the communication quality in the blind zone was clarified.

Free Research Field

アンテナ・電波伝搬

Academic Significance and Societal Importance of the Research Achievements

本研究では，電波伝搬環境を制御できる電波散乱壁の最適設計方法を明確にすることで，任意の通信空間の実現に寄与する．近年，通信端末の爆発的な増大・使用周波数の高周波化に伴い，通信品質の確保や不感地帯の問題に対して，アンテナなどの通信機器だけで解決することは難しい．そのため本研究で提案して電波散乱壁を利用し，電波伝搬環境を制御することで，次世代高速無線通信のサービス向上に資することができる