The Electromagnetic Protection Design of Photoelectric System Based on Magnetic Material

This paper uses traditional magnetic material to realize the electromagnetic protection of the photoelectric system. Simulation results show that the traditional magnetic material loaded on the optical channel's inner wall can absorb electromagnetic waves, thus achieving electromagnetic protection. In the established circular and rectangular optical channels, the relative bandwidth of electromagnetic wave absorption can reach 112% and 97%, respectively. In addition, the absorption bandwidth increased from 97% to 125% by placing periodic metal rings on the magnetic material on the inner wall of the rectangular optical channel.