Based on the theory of single-layer absorber transmission line and combined with computer-aided design, select suitable
Absorbing powderUsing copper nickel coated fabric and metal yarn blended fabric as the base fabric, and polyurethane as the matrix, prepare 1 Flexible textile coated composite fabric with a coating thickness of 5mm.
The electromagnetic properties of the absorbing powder were tested and analyzed, and 2 6 ～ 18. The influence and mechanism of different mixing ratios of absorbing powder and substrate, as well as the base cloth, on reflection loss within the 0 GHz range. The results indicate that within a certain range, as the volume fraction of the absorbing powder increases, the absorbing efficiency improves, the frequency band widens, and the peak of the reflection loss curve shifts towards lower frequencies. The absorption effect of coated fabrics based on metal yarn blended fabrics is better than that of coated fabrics based on copper nickel coated fabrics.
With electromagnetic wave shielding and
Absorbing materialWith the rapid development of technology, people have put forward higher requirements for absorbing materials, namely wide, light, thin, and strong. Improving the absorption rate of electromagnetic waves is the goal of absorbing materials, and the design of absorbing bodies mainly includes: absorption efficiency design, bandwidth design, shape and thickness design. In the design process, it is necessary to consider its application value and cost, and it is often difficult to balance width, lightness, thinness, and strength. The current design of absorbers is continuously adjusted and improved through experiments under the guidance of existing theories.
Advanced Institute Technology has prepared centimeter wave/millimeter wave compatible stealth wet textiles using paper copying devices and wet spinning processes, and studied the absorption performance of stealth wet textiles in the 8-12 GHz and 30-40 GHz frequency bands. Advanced Institute Technology uses ceramic fibers as the base fabric and silicon carbide as the matrix for different combinations of multi-layer fabrics and the influence of different degrees of oxidation on the ability of fabrics to absorb electromagnetic waves. It is believed that in the gigahertz range, fabrics have a good effect on reducing reflection and transmission, and can absorb more than 90% of electromagnetic waves.
We studied the microstructure, mechanical properties, and friction properties of iron fibers based on their absorption and spinnability, and predicted their performance
Iron fiber absorbing materialThe operability of smooth spinning. This article uses copper nickel coated fabric and metal yarn blended fabric as the base fabric, taking advantage of its low surface density, thin thickness, and good flexibility. By coating the base fabric with an absorbing agent, the study focuses on the changes in the mixing ratio of absorbing powder and the influence of the base fabric on the absorbing performance of the coated fabric.
