Influence of wave absorbing material on shielding effect of the neckline of electromagnetic shielding clothing

Wave absorbing materials are widely used in different industries because of its special properties, but they are seldom used in clothing at present. In order to improve the performance of electromagnetic shielding clothing, it is a good choice to use wave absorbing materials in clothing. Therefore, in this paper, the application of absorbing materials in clothing is studied, and the neckline which has great influence on the shielding effectiveness of clothing is chosen as the subject investigated, the application and influence of the wave absorbing material on the neckline of electromagnetic shielding clothing are explored. Stainless steel fabric is selected as clothing sample material. Carbon fiber fabric, nano aluminum fabric and multi ion fabric are used as experimental materials. The experimental samples are designed and manufactured according to different ways of use and combination. The reflectivity of the material and the electromagnetic shielding effectiveness of the sample are measured by the segmental support test system and the three meter semi anechoic chamber. The results show that the application of different wave absorbing materials and usage mode at the neckline has significant influence on the shielding effectiveness of clothing, the shielding effectiveness of the clothing is best when the nano aluminum material is applied as an intermediate layer and the multi ion fabric is applied directly at the neckline, and all of them have increased by more than 5 dB.