研究目的
To analyze the actual structure of the multilayer frequency selective surface absorbing using the equivalent circuit model and to design absorbing material for different requirements.
研究成果
A cross-shaped based multilayer FSS absorbing structure is analyzed by equivalent circuit model. It is a convenient method for the optimization design of multilayer structure. The results show that multilayer structure leads to several absorption peaks. The operation frequency and bandwidth can be adjusted by the parameters. The absorption peaks of the proposed structure are independently adjustable, which makes the design more convenient.
研究不足
The paper does not explicitly mention the limitations of the research.
1：Experimental Design and Method Selection:
The equivalent circuit model of a multilayer FSS absorbing structure based on a cross-shaped unit is designed to calculate the scattering properties. The transmission line model and equivalent impedance are provided for the transmissivity of electromagnetic waves.
2：Sample Selection and Data Sources:
The substrate is selected as less-loss material, with a relative permittivity of εr. The thickness of the dielectric layer is t.
3：List of Experimental Equipment and Materials:
Ansoft HFSS is used for simulation.
4：Experimental Procedures and Operational Workflow:
The transmission characteristic is calculated based on the equivalent circuit model and compared with the simulated results of HFSS.
5：Data Analysis Methods:
The influence of different parameters on the absorbing characteristics is discussed.
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