Related Experiment Video
Updated: Oct 6, 2025
09:33
Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
Published on: June 7, 2019
6.4K
Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes
Riccardo Cacocciola1,2, Badreddine Ratni1, Nicolas Mielec2
1LEME, UPL, Univ Paris Nanterre, F92410 Ville d'Avray, France.
Materials (Basel, Switzerland)
|January 21, 2022
Summary
Engineered metasurfaces camouflage high-index radome seams, reducing scattering and improving transparency. This frequency-adjustable, polarization-insensitive solution enhances radome performance against various wave illuminations.
Area of Science:
- Electromagnetics
- Materials Science
- Antenna Engineering
Background:
- Radome seams create scattering, degrading performance.
- Metasurfaces offer novel electromagnetic control.
- Dielectric radomes require seamless designs for optimal transparency.
Purpose of the Study:
- To camouflage high-index dielectric radome seams.
- To reduce scattering from mechanical seams in radome structures.
- To enhance the overall transparency performance of radomes.
Main Methods:
- Modeling the metasurface-tuned seam using a transmission-line approach.
- Analytically retrieving surface impedance for unit-cell design.
- Performing full-wave simulations and microwave antenna measurements.
Main Results:
- Validated undesired scattering suppression for normally and obliquely incident waves.
- Demonstrated robustness to fabrication tolerances.
- Achieved camouflage of high-index seams on low-index panels.
Conclusions:
- Metasurface-tuning effectively reduces dielectric mechanical seam scattering.
- The proposed solution is easily implementable, frequency adjustable, and polarization insensitive.
- This method significantly improves radome transparency performance.
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