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Updated: Aug 29, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Hilbert-Coding Metasurface for Diverse Electromagnetic Controls.

Jianjiao Hao¹, Fuju Ye¹, Ying Ruan¹

¹College of Electronics and Information Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 200090, China.

Materials (Basel, Switzerland)

|September 9, 2022

Summary

This summary is machine-generated.

Researchers developed Hilbert-coding metasurfaces for simpler electromagnetic wave control. This novel approach offers flexible regulation and potential applications in wireless communications and radar imaging.

Keywords:

Hilbert-curve coding metasurface metamaterial metasurface passive metasurface

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Area of Science:

Metamaterials and Metasurfaces
Electromagnetic Wave Manipulation
Applied Physics

Background:

Passive coding metasurfaces offer advanced electromagnetic wave manipulation but require complex designs.
Existing metasurface technologies face challenges in design complexity and flexibility.
Efficient control of electromagnetic waves is crucial for advanced communication and imaging systems.

Purpose of the Study:

To introduce Hilbert-coding metasurfaces as a novel method for flexible and convenient electromagnetic regulation.
To demonstrate the feasibility of using Hilbert-coding metasurfaces for controlling electromagnetic wave patterns.
To explore potential applications in wireless communications and radar imaging.

Main Methods:

Designing and fabricating multiple Hilbert-coding metasurfaces based on different Hilbert curve orders.
Conducting experimental measurements to validate the electromagnetic wave manipulation capabilities.
Comparing experimental results with simulation data to confirm the proposed concept's effectiveness.

Main Results:

Successfully demonstrated single-beam deflection patterns with angles around 21°, 13°, 12°, and 39° and corresponding energy values.
Achieved dual-beam deflection patterns at 28.5° and 20° with energy values of 10.05 dB and 11.4 dB.
Experimental validation showed high consistency with simulation data, confirming the Hilbert-coding metasurface concept.

Conclusions:

Hilbert-coding metasurfaces provide a flexible and convenient approach to electromagnetic regulation.
The proposed method simplifies the design process compared to traditional passive coding metasurfaces.
These metasurfaces hold significant potential for applications in electromagnetic beam scanning and energy distribution control within wireless communications and radar imaging.