The arrival of the 5G era has made electromagnetic pollution a problem that needs to be addressed, and flexible carbon-based materials have become a good choice. In this study, wet continuous papermaking technology was used to prepare carbon fiber paper (CFP) with a three-dimensional conductive skeleton network; Molybdenum disulfide ( MOS2)/ iron (Fe) @ carbon fiber paper-based shielding material was prepared by impregnating and blending molybdenum disulfide/iron ( MOS2/Fe) phenolic resin MOS2/ Fe@ CFP. The morphology, structure, electrical conductivity, mechanical properties, hydrophobicity, and electromagnetic shielding properties of the composite were characterized. The results show that the three-dimensional network structure based on a short carbon fiber paper-based conductive skeleton and the synergistic effect of the MOS2 dielectric wave absorbing agent and Fe magnetic wave absorbing agent have good electromagnetic shielding performance. Conduct electromagnetic shielding simulation using HFSS software to provide options for the structural design of CFP. The electromagnetic shielding performance of CFP reaches 70 dB, and the tensile strength reaches 34.39 MPa. Based on the mechanical properties, the compactness of carbon fiber paper is ensured. The lightning damage model test using CST software expands the direction for the use of carbon fiber paper. In summary, MOS2/ Fe @CFP with excellent shielding performance has great application prospects in thinner and lighter shielding materials, as well as high sensitivity, defense and military equipment.

This study focuses on the realization of Fiber-Optic network's stabilization light source which is increasingly necessary according to the construction of the current high speed communication network. The stabilization light source is being used as an optical source in constructing the various Fiber-Optic networks, and developing the communication parts. And the light source consists of LED(light emitting diode) and Laser(light amplification by stimulated emission of radiation). LED has some merits, which are cheap and easy to treat, however the output is comparably small. And LED has some restrictions for transmitting the long distance because of broad line width. However, Laser, which has narrow line width and high output, is being used for transmitting the long distance and for the various LED and systems. This study develops the light source using Laser which is essential for the construction of communication networks as well as for the production and inspection of the communication parts. Considering for the portable, the stabilization light source, is developed light and easy to use, which has a structure using a small battery. As a result of an evaluation for the developed parts this study comes to know that an outstanding characteristic was realized because an accidental error occurred within ± 0.1[dB] not only in the characteristic of the initial motion but also in the 10 hour long operation. built-in.