研究目的
To propose a novel wideband transmissive type polarization manipulator based on metasurfaces in the THz region for multifunctional applications including linear to circular polarization conversion and wideband bandpass filtering.
研究成果
The proposed metasurface-based polarization manipulator demonstrates wideband linear to circular polarization conversion and filtering capabilities, making it suitable for THz communication and imaging applications. The design's validity is confirmed through simulations, and its multifunctionality is highlighted.
研究不足
The study is limited to simulation results without experimental validation. The performance may vary with fabrication tolerances and real-world conditions.
1：Experimental Design and Method Selection:
The study employs a bilayered metasurface design for polarization manipulation and filtering. Electromagnetic simulations were conducted using HFSS and CST software to validate the design.
2：Sample Selection and Data Sources:
The study uses a unit cell design with specific geometric parameters for the metasurface.
3：List of Experimental Equipment and Materials:
Flexible polyimide quartz substrate with a dielectric constant εr of 4.0 and gold as the conductor.
4：0 and gold as the conductor.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The design was simulated using master–slave boundary conditions with Floquet ports at the input and output to realize an infinite periodic array structure.
5：Data Analysis Methods:
The performance was analyzed through transmission characteristics, phase difference, axial ratio, ellipticity, and polarization conversion efficiency.
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