研究目的
Investigating the design and simulation of a reconfigurable electromagnetic metasurface capable of producing bifunctional illusions, specifically mimicking the scattering fields of concave and convex mirrors.
研究成果
The designed bifunctional electromagnetic illusion metasurface achieves the desired scattering fields equivalent to those of concave and convex mirrors. The simulation results validate the effectiveness of the metasurface in manipulating electromagnetic beams. The metasurface's reconfigurability, ultrathin thickness, and easy integration suggest significant application value and development potential in electromagnetic metamaterials and scattering regulation.
研究不足
The study is limited to simulation results and does not include experimental validation. The practical implementation and scalability of the metasurface in real-world applications are not discussed.
1：Experimental Design and Method Selection:
The study employs generalized Snell's law and phase compensation principle to design a reconfigurable metasurface. A novel unit cell with controlled reflection phase is used.
2：Sample Selection and Data Sources:
A two-dimensional electromagnetic illusion metasurface of 15 × 15 cells was developed and simulated.
3：List of Experimental Equipment and Materials:
The unit cell is designed from classical sandwich-structure, with specific dimensions and materials including a substrate with a dielectric constant of 2.65, a loss tangent of 0.004, and an ultrathin thickness of 1mm. Four diodes are integrated into the unit cell to change capacitance and reflection phases.
4：65, a loss tangent of 004, and an ultrathin thickness of 1mm. Four diodes are integrated into the unit cell to change capacitance and reflection phases.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The reflection properties of the proposed unit cells were simulated in the CST Microwave Studio. The metasurface was simulated with an incident plane wave of X polarization.
5：Data Analysis Methods:
The simulation results were analyzed to verify the illusion performance of the metasurface.
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