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Multifunctional reconfigurable reflective metasurface for polarization conversion
1Department of Electronics, Center for Research in ElectroMagnetics and Antennas (CREMA), Cochin University of Science and Technology, Kochi, 682022, India. neemak@cusat.ac.in.
Scientific Reports
|July 2, 2025
Summary
This study introduces a novel multifunctional reconfigurable metasurface capable of converting electromagnetic waves. The design offers adaptive polarization control for advanced wireless communication systems.
Area of Science:
- Electromagnetics
- Materials Science
- Metasurface Technology
Background:
- Metasurfaces are crucial for dynamic electromagnetic wave manipulation, essential for future 6G networks.
- Adaptive control of electromagnetic waves is needed for evolving communication demands and environmental changes.
Purpose of the Study:
- To design a multifunctional reconfigurable metasurface for polarization conversion.
- To achieve orthogonal linear polarization (OLP) conversion in band-1 and circular polarization (CP) conversion in band-2.
- To enhance substrate thickness, reflection bandwidth, and angular stability.
Main Methods:
- Design of a metasurface unit cell loaded with PIN diodes for reconfigurability.
- Theoretical analysis of the multifunctional and reconfigurable performance.
- Fabrication and measurement of a 17x17 unit cell prototype.
Main Results:
- Successful conversion of linearly polarized (LP) waves to OLP in 4.85-6.93 GHz.
- Successful conversion of LP waves to CP in 8.3-9.3 GHz.
- Demonstrated switching between multifunctional operations and simple reflection via PIN diodes.
Conclusions:
- The proposed metasurface design enables dynamic polarization control with improved performance metrics.
- The theoretical explanation validates the multifunctional and reconfigurable capabilities.
- Experimental verification confirms the simulation results, paving the way for practical applications.

