研究目的
To develop a rigorous temporal coupled-mode theory (CMT) formalism for analyzing metasurface (MTS)-based structures to facilitate their design and minimize computational demand.
研究成果
The proposed CMT formalism provides an efficient and reasonable approximation for analyzing complex MTS structures with a significant reduction in computational requirements. It accurately predicts operational bandwidth and identifies resonances, serving as a valuable tool for initial design estimation.
研究不足
The method's accuracy is limited by the approximation nature of CMT, with deviations observed in resonance depth and reflection compared to FEM results. The applicability is also limited to structures where resonator parameters can be accurately determined.
1：Experimental Design and Method Selection:
The study employs a temporal CMT framework to analyze MTS-based structures, comparing results with full-wave FEM simulations.
2：Sample Selection and Data Sources:
The analysis focuses on split-ring resonator (SRR) MTSs coupled to microstrip lines.
3：List of Experimental Equipment and Materials:
Uses a grounded dielectric substrate with specific permittivity and thickness, and SRRs of defined dimensions.
4：Experimental Procedures and Operational Workflow:
Involves eigenvalue simulations for uncoupled and coupled resonators, calculation of Q factors, and comparison of CMT and FEM results.
5：Data Analysis Methods:
The response of MTS structures is analyzed through S-parameters obtained from CMT and FEM simulations.
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