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Updated: Jan 22, 2026
09:33
Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
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Metasurface Antennas: New Models, Applications and Realizations.
Marco Faenzi1, Gabriele Minatti2, David González-Ovejero3
1Department of Information Engineering and Mathematics, University of Siena, Via Roma 56, 53100, Siena, Italy. faenzi@diism.unisi.it.
Scientific Reports
|July 17, 2019
Summary
This study introduces novel metasurface (MTS) antennas, achieving high aperture efficiency and bandwidth. These thin antennas offer customizable beam shapes and polarization for advanced applications.
Area of Science:
- Electromagnetics and Applied Physics
- Antenna Engineering
- Metamaterials Science
Background:
- Metasurface (MTS) antennas offer unique electromagnetic properties.
- Subwavelength elements on dielectric slabs enable novel antenna designs.
- Controlling surface wave (SW) interactions is key to advanced antenna performance.
Purpose of the Study:
- To present new designs, implementation, and experimental validation of metasurface antennas.
- To demonstrate the customization of antenna characteristics like beam shape, bandwidth, and polarization.
- To showcase unprecedented performance metrics in metasurface antenna technology.
Main Methods:
- Designing MTS antennas using subwavelength elements on grounded dielectric slabs.
- Exploiting anisotropic impedance boundary conditions (BC) for aperture field control.
- Utilizing in-plane monopole excitation for thin antenna profiles.
Main Results:
- Experimental validation of MTS antenna designs with aperture efficiency up to 70%.
- Demonstrated bandwidth of up to 30% for the proposed antenna structures.
- Achieved dual-beam capabilities at different frequencies with high gain.
Conclusions:
- Metasurface antennas can be highly customized through element shaping and tailored boundary conditions.
- The presented designs achieve state-of-the-art performance in efficiency, bandwidth, and beam control.
- This work paves the way for next-generation high-performance, reconfigurable antennas.
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