研究目的
Investigating the design and performance of a reconfigurable metasurface capable of magnitude, polarization, and phase modulation.
研究成果
The reconfigurable metasurface demonstrates comprehensive capabilities in manipulating electromagnetic waves' magnitude, polarization, and phase. It offers a cost-efficient approach for multifunctional applications, particularly in target stealth, with potential for adaptation across other frequency ranges.
研究不足
The experimental condition limits the measured frequency range to 3.0 GHz to 18.0 GHz. Discrepancies in the absorption band are attributed to imperfect soldering of resistors and material characteristic assumptions.
1：Experimental Design and Method Selection:
The study involves designing a polarization conversion absorber (PCA) lattice for integrated absorption and polarization rotation. The metasurface's performance is evaluated through simulations and measurements.
2：Sample Selection and Data Sources:
The metasurface is composed of 6 × 6 lattices, each containing 4 × 4 unit cells. Data is sourced from simulations using HFSS and measurements in an anechoic chamber.
3：List of Experimental Equipment and Materials:
The setup includes a Vector Network Analyzer (N5230C) by Agilent, horn antennas, and a fabricated metasurface with embedded resistors.
4：Experimental Procedures and Operational Workflow:
The metasurface's performance is tested under x-polarized incidence, with reflected amplitude and phase measured. The coding layout for diffusion is optimized using the Simulated Annealing Algorithm.
5：Data Analysis Methods:
The reflected amplitude and phase are analyzed to evaluate absorption, polarization conversion, and scattering diffusion capabilities.
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