Abstract:

 By analyzing the present research status of fabric based frequency selective surface, the necessity of further research on relevant issues was illustrated. Conductive adhesive coating printing experiment was conducted to realize fabric based circular-ring-shaped frequency selective surfaces and the transmission coefficients were tested using Shielding Room Method within the range of 18 GHz ~ 26.5 GHz. The influence rules of internal radius, conductivity and coating thickness of metal layer on the transmission characteristics were analyzed, and experiment results confirmed the feasibility and validity to study fabric based frequency selective surface. Also, through the comparison of measured and simulated results, it could be found that traditional design methods applied to fabric based frequency selective surface to some extent. Based on the frequency selective characteristics and the basic properties of textiles, like lightweight, softness and low-rigidity features, the application prospects of fabric based frequency selective surface in wave-absorbing material, fabric antenna and communication window aspects were explored.

Key words: frequency selective surface, transmission coefficient, frequency response characteristics, electromagnetic functional fabric, metallization process