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Related Experiment Video

Updated: Aug 25, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Published on: June 7, 2019

Metasurface-Assisted Wireless Communication with Physical Level Information Encryption.

Yilin Zheng¹, Ke Chen¹, Zhiyuan Xu¹

¹School of Electronic Science and Engineering, Nanjing University, Nanjing, 210023, P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|October 17, 2022

Summary

This study introduces a dual-band metasurface communication scheme to enhance wireless information security. By dividing data and transmitting it through separate physical channels, it significantly reduces eavesdropping risks.

Keywords:

dual-band information encryption programmable metasurface wireless communication

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Last Updated: Aug 25, 2025

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Area of Science:

Electromagnetic wave manipulation
Wireless communication systems
Information security

Background:

Wireless communication relies on electromagnetic (EM) signals, facing challenges in information security and spectrum utilization.
Programmable metasurfaces (PMs) offer a novel approach to wireless transmission by directly modulating digital information, simplifying conventional systems.

Purpose of the Study:

To introduce a dual-band metasurface-assisted wireless communication scheme for enhanced information security.
To improve spectrum utilization by creating additional physical channels for data transmission.

Main Methods:

A dual-band metasurface-assisted wireless communication scheme was developed.
Information was divided and transmitted through different physical channels for encryption.
A dual-channel, high-security wireless communication system using a 1-bit PM was established.

Main Results:

Two different parts of a picture were simultaneously transmitted to two receivers.
Successful retrieval of the transmitted picture required synthesizing received signals as predefined.
The scheme demonstrated effective information encryption and reduced eavesdropping possibilities.

Conclusions:

The proposed scheme offers a new method for employing programmable metasurfaces (PMs) in wireless communication.
It provides a novel route for information encryption and improved spectrum utilization.
This approach enhances physical channel security in wireless data transmission.