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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
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Dual-polarized reconfigurable metasurface antenna based on 1-bit coding
Optics Express
|July 30, 2025
Summary
This study introduces a novel reconfigurable dual-polarized metasurface antenna. This innovative design offers tunable beamforming and radar cross section (RCS) reduction for advanced applications.
Area of Science:
- Electromagnetics and Antenna Engineering
- Metamaterials and Metasurfaces
- Microwave and RF Engineering
Background:
- Metasurface antennas offer unique electromagnetic properties.
- Reconfigurable antennas are crucial for adaptive communication systems.
- Controlling polarization and scattering is key for advanced antenna functionalities.
Purpose of the Study:
- To propose a novel reconfigurable dual-polarized metasurface antenna.
- To demonstrate independent control over radiation and scattering functions.
- To achieve tunable beamforming and radar cross section (RCS) reduction.
Main Methods:
- Design of a unit structure with a central patch, semi-enclosed element, and adjustable resistors.
- Utilizing variable resistors to achieve a 180° scattering phase difference for both x and y polarizations.
- Developing a tunable array with a feeding network for beam deflection and complex scattering.
Main Results:
- The unit structure exhibits excellent radiation performance and independent radiation/scattering control.
- Achieved a 180° scattering phase difference for both polarizations by adjusting resistance.
- Demonstrated functionalities including dual-beam, quad-beam, and RCS reduction.
- Obtained an impedance matching bandwidth of 9 GHz to 10.6 GHz and a peak gain of 23.2 dBi.
- Experimental validation confirmed good agreement with simulation results.
Conclusions:
- The proposed reconfigurable dual-polarized metasurface antenna offers versatile functionalities.
- The independent control of radiation and scattering enables advanced applications.
- The design demonstrates excellent performance in terms of bandwidth, gain, and beam steering.
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