研究目的
Investigating the design and performance of 3D frequency selective surfaces (FSS) based on substrate integrated waveguide (SIW) cavity technology for aerospace and industrial applications.
研究成果
The proposed 3D FSS based on SIW cavities shows potential in overcoming the limitations of conventional 2D and 3D FSSs, with sharp roll-off performance characteristics and suitability for high power microwave applications. Future studies will focus on improving EM characteristics and prototype fabrication.
研究不足
The solid 3D FSS elements are bulkier and may not be suitable for applications requiring low payloads, such as in aerospace. The study also notes the need for future work on improving EM characteristics and prototype fabrication.
1：Experimental Design and Method Selection:
The study employs SIW cavity technology to design 3D FSS elements, focusing on hexagonal shapes for stable resonance performance.
2：Sample Selection and Data Sources:
Hexagonal FSS rings printed on either side of a Teflon substrate are used, with metallic vias for coupling.
3：List of Experimental Equipment and Materials:
Teflon substrate (εr =
4：1, thickness 0 mm), metallic vias, and CST Microwave Studio for simulations. Experimental Procedures and Operational Workflow:
The design involves printing hexagonal FSS rings on a substrate, coupling them with metallic vias, and simulating the structure's frequency and phase response.
5：Data Analysis Methods:
Full-wave simulations are performed to analyze the frequency response, phase response, and material characteristics of the proposed 3D FSS structure.
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