Pulse-driven self-reconfigurable meta-antennas

Daiju Ushikoshi, Riku Higashiura, Kaito Tachi, Ashif Aminulloh Fathnan, Suhair Mahmood, Hiroki Takeshita, Haruki Homma, Muhammad Rizwan Akram, Stefano Vellucci, Jiyeon Lee, Alessandro Toscano, Filiberto Bilotti, Christos Christopoulos and Hiroki Wakatsuchi ()
Additional contact information
Daiju Ushikoshi: Nagoya Institute of Technology, Gokiso-cho, Showa
Riku Higashiura: Nagoya Institute of Technology, Gokiso-cho, Showa
Kaito Tachi: Nagoya Institute of Technology, Gokiso-cho, Showa
Ashif Aminulloh Fathnan: Nagoya Institute of Technology, Gokiso-cho, Showa
Suhair Mahmood: Nagoya Institute of Technology, Gokiso-cho, Showa
Hiroki Takeshita: Nagoya Institute of Technology, Gokiso-cho, Showa
Haruki Homma: Nagoya Institute of Technology, Gokiso-cho, Showa
Muhammad Rizwan Akram: Nagoya Institute of Technology, Gokiso-cho, Showa
Stefano Vellucci: ROMA TRE University
Jiyeon Lee: University of California, San Diego
Alessandro Toscano: ROMA TRE University
Filiberto Bilotti: ROMA TRE University
Christos Christopoulos: The University of Nottingham, University Park
Hiroki Wakatsuchi: Nagoya Institute of Technology, Gokiso-cho, Showa

Nature Communications, 2023, vol. 14, issue 1, 1-15

Abstract: Abstract Wireless communications and sensing have notably advanced thanks to the recent developments in both software and hardware. Although various modulation schemes have been proposed to efficiently use the limited frequency resources by exploiting several degrees of freedom, antenna performance is essentially governed by frequency only. Here, we present an antenna design concept based on metasurfaces to manipulate antenna performances in response to the time width of electromagnetic pulses. We numerically and experimentally show that by using a proper set of spatially arranged metasurfaces loaded with lumped circuits, ordinary omnidirectional antennas can be reconfigured by the incident pulse width to exhibit directional characteristics varying over hundreds of milliseconds or billions of cycles, far beyond conventional performance. We demonstrate that the proposed concept can be applied for sensing, selective reception under simultaneous incidence and mutual communications as the first step to expand existing frequency resources based on pulse width.

Date: 2023
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DOI: 10.1038/s41467-023-36342-1

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