Cloud-Connected Networked Metasurfaces for Online Electromagnetic Manipulations
Information technology is developing toward interconnections and intelligent connections of all things. As an emerging platform, a programmable metasurface that allows real-time electromagnetic (EM) control and information processing can help facilitate this goal. However, the currently demonstrated...
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| Published in: | ACS photonics 2023-05, Vol.10 (5), p.1558-1565 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | eng |
| Online Access: | Get full text |
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| Summary: | Information technology is developing toward interconnections and intelligent connections of all things. As an emerging platform, a programmable metasurface that allows real-time electromagnetic (EM) control and information processing can help facilitate this goal. However, the currently demonstrated programmable metasurfaces can only be controlled locally, lacking networking capability, which will hamper their intelligent and distributed development. Here, a networked metasurface with online EM manipulation capabilities is proposed and realized, which is composed of a polarization-insensitive programmable metasurface, a networked multichannel voltage driver, and home-developed graphical system control software. Taking advantage of the internet of things (IoT) technology, the networked metasurface can be open-accessed by multiple users and controlled by commands generated with the built-in functions of the controller through cloud connections. Therefore, the reflected beams of the networked metasurface can be manipulated in two dimensions under arbitrarily polarized incidences. To illustrate the cloud-connected networking metasurface, the single and multiple beam scanning of the fabricated sample at 5.0 GHz is measured, and the experimental results show that the reflected beams can be programmed online. Our approach provides an actual route to realizing networked metasurfaces, which may have potential practicability in smart EM control nodes, distributed cooperative metasurface systems, and metasurface-assisted wireless networks. |
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| ISSN: | 2330-4022 2330-4022 |