研究目的
To control near-field distributions through use of a metasurface with both amplitude and phase modulations, enabling differentiation and integration on electric-field distributions.
研究成果
The proposed metasurface with amplitude and phase modulations can achieve electric-field distribution controls in the near-field region, enabling differential and integral operations on predesigned electric-field distributions. The designed metasurfaces have been verified in numerical simulations and experiments.
研究不足
The bulky volume and heavy weight of metamaterials hinder the implementations for compact devices. The manual operation and fabrication could affect the experimental results.
1：Experimental Design and Method Selection:
A C-shaped particle is designed to provide stable and continuous amplitude and phase profiles independently of transmitted waves by varying its opening and orientation angles.
2：Sample Selection and Data Sources:
The metasurface is composed of C-shaped meta-particles, simulated using CST Microwave Studio.
3：List of Experimental Equipment and Materials:
A C-shaped metal pattern printed on the surface of F4B substrate with dielectric constant of
4：Experimental Procedures and Operational Workflow:
The metasurface is illuminated by incident waves polarized along the x-axis, and the transmitted waves are polarized along the y-axis.
5：Data Analysis Methods:
The electric-field distributions in the near-field region are analyzed based on the complex amplitude distributions of the source.
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