研究目的
To introduce a reliable extraction procedure for RLC parameters of a resonant magnetic inclusion as an SR, enabling a deeper understanding and more effective design of metamaterials.
研究成果
The proposed procedure provides an accurate and unambiguous description of the electromagnetic properties of SRs, enabling a more effective design of metamaterials. The method is general and can be applied to any typology of resonator.
研究不足
The fabrication of prototypes can introduce losses and distortions, affecting the accuracy of the RLC parameters. The etching process may produce a pitting phenomenon, especially for extremely small-width copper tracks, increasing the overall resistance.
1：Experimental Design and Method Selection:
The procedure involves a simulation setup consisting of a probe loop and the SR under test, modeled as an RLC series resonator. The setup is characterized through full-wave simulations to estimate the RLC parameters.
2：Sample Selection and Data Sources:
Different shapes of SRs (square and rectangular) with varying numbers of turns are analyzed.
3：List of Experimental Equipment and Materials:
The probe loop is made of copper and etched on an FR4 substrate; SRs are made of copper and etched on an Arlon substrate.
4：Experimental Procedures and Operational Workflow:
The simulation setup is first characterized without the SR to determine the probe loop's impedance. The SR is then placed at the center of the probe loop, and the mutual coupling is estimated. The RLC parameters of the SR are derived through a fitting procedure.
5：Data Analysis Methods:
The RLC parameters are obtained by fitting the simulated impedance of the probe-SR system to an equivalent circuit model.
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