Adverse Effect Reduction of Pores on Shielding Effectiveness of Electromagnetic Shielding Fabric via Split Ring Resonator

Electromagnetic shielding fabrics are widely used in various fields, but their unavoidable pores cause the leakage of the electromagnetic waves, seriously reducing the shielding effectiveness of electromagnetic shielding fabric. To overcome this problem, this article proposes to implant an metamaterial structure of split ring resonator in fabrics. This structure aims to enable the fabric pores in the covered area to absorb electromagnetic waves, thereby improving the shielding effectiveness of fabrics. By testing and analyzing the sample fabric implanted with split ring resonator, it has been concluded that the appropriate insertion of split ring resonator into both ordinary fabrics and electromagnetic shielding fabrics can significantly improve their shielding performance of the fabrics. Among the various resonator designs, the circular resonator ring exhibits the most significant enhancement effect. It is observed that as the size of the split ring resonator increases, its ability to improve the shielding effectiveness of the fabric also increases proportionally. When the spacing between split ring resonators increases, its improvement in shielding effectiveness against the fabric decreases accordingly. This article gives a new path to solve the problem of severely reducing the shielding effectiveness of electromagnetic shielding fabric due to pores.