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Related Experiment Video

Updated: Feb 14, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Published on: June 7, 2019

Design and Analysis of Dual-Polarized Frequency-Selective Metasurface for X-Band Notch Applications.

Muhammad Idrees¹, Sai-Wai Wong¹, Yejun He¹

¹State Key Laboratory of Radio Frequency Heterogeneous Integration, Sino-British Antennas and Propagation Joint Laboratory of MOST, Guangdong Engineering Research Center of Base Station Antennas and Propagation, Shenzhen Key Laboratory of Antennas and Propagation, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China.

Sensors (Basel, Switzerland)

|February 13, 2026

Summary

This study introduces a compact, polarization-insensitive frequency-selective metasurface (FSMS) for effective radio frequency (RF) shielding. The developed FSMS demonstrates significant stopband behavior, ideal for suppressing unwanted 10 GHz X-band communications.

Keywords:

X-band angle of incidence electromagnetic interference (EMI)frequency-selective metasurface polarization-insensitive selective shielding

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Area of Science:

Electromagnetics and Metamaterials
RF Engineering
Materials Science

Background:

Radio frequency (RF) interference poses challenges in modern electronic systems.
Effective shielding solutions are crucial for maintaining signal integrity.
Metasurfaces offer novel approaches to electromagnetic wave manipulation.

Purpose of the Study:

To design and demonstrate a miniaturized, polarization-insensitive frequency-selective metasurface (FSMS).
To achieve effective RF shielding by suppressing communication at 10 GHz in the X-band.
To analyze the operational principles using an equivalent circuit model.

Main Methods:

Design of a circular metallic patch with a central staircase slot.
Electromagnetic simulation and analysis of the unit cell.
Fabrication and experimental validation of an FSMS prototype.
Development of an equivalent circuit model (ECM) for operational analysis.

Main Results:

Achieved 38.5 dB attenuation at the resonant frequency (10 GHz).
Exhibited a 10 dB suppression fractional bandwidth exceeding 46%.
Demonstrated polarization-insensitivity and angle-of-incidence independence for the stopband.
Simulated and measured results showed excellent agreement.

Conclusions:

The miniaturized FSMS is highly effective for selective electromagnetic interference (EMI) shielding.
Its polarization-independent and wide angular performance make it suitable for diverse RF applications.
The developed FSMS offers a promising solution for targeted RF signal suppression.