Realization of a RF electromagnetic property measurement system using metamaterial measurement system

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K04512
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21030:Measurement engineering-related
• Research Institution: Osaka Research Institute of Industrial Science and Technology
• Principal Investigator: Itoh Morimichi 地方独立行政法人大阪産業技術研究所, 和泉センター, 主任研究員 (50712931)
• Co-Investigator(Kenkyū-buntansha): 上田 哲也 京都工芸繊維大学, 電気電子工学系, 教授 (90293985)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: メタマテリアル / 誘電体共振器 / ゼロ次共振

Outline of Final Research Achievements

An electromagnetic field simulation model of a metamaterial consists of a dielectric resonator and a waveguide was constructed, and the conditions for zeroth-order resonance in the unit cell model and the propagation mode in a system with a one-dimensional array of dielectric resonators were clarified. In parallel, a prototype was fabricated and verified, and the validity of the electromagnetic field simulation was confirmed.
In addition, calculations were performed regarding the dependence of the number of cells on the electromagnetic field distribution in the one-dimensional array system, and the changes that occur when a sample is inserted into a part with high strength fields. As a result, the effects on the dispersion curve due to the parts with strong electromagnetic fields and the number of cells could be evaluated, and it can be said that basic knowledge for measuring electromagnetic characteristic parameters of this system has been obtained.

Free Research Field

電磁両立性

Academic Significance and Societal Importance of the Research Achievements

本研究によって、これまで電磁波を制御する手段、あるいは特異な電磁気特性を示す材料として研究されてきたメタマテリアルに対して、材料の電磁気特性の測定という新たな応用展開に向けるための基礎的な知見が得られた。比較的低いマイクロ波の領域でも、メタマテリアルにより制御した電磁界分布を用いることで、従来より微小な大きさや液体などの材料を感度高く測定することができれば、測定周波数帯域ごとに異なるシステムを用いずとも測定できる、広帯域での電磁気特性測定システムの構築が期待できる。