Creating a new kind of electromagnetic characteristics: waveform selectivity through metasurfaces

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630175
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Wakatsuchi Hiroki 名古屋工業大学, 工学(系)研究科(研究院), 助教 (00725278)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: メタマテリアル / メタサーフェイス / 周波数 / パルス

Outline of Final Research Achievements

This study developed artificially engineered periodic structures, the so-called metasurfaces, together with circuit elements including schottky diodes, which led to creating a new kind of electromagnetic characteristics, namely, waveform selectivity. As a previous study we had reported metasurfaces that absorb short pulses, which are in general typical waveforms of electromagnetic noise, while transmitting long pulses or continuous waves even at the same frequency. In contrast, this study developed metasurfaces that absorb long pulses more effectively than short pulses. Additionally, we realised other types of waveform selectivities that allowed us to absorb or transmit arbitrary pulses in between, while both of short and long pulses were respectively transmitted and absorbed. As a consequence, these new characteristics are expected to give us an additional degree of freedom to control electromagnetic waves and sense different waves even at the same frequency.

Free Research Field

電気電子工学