Abstract:

Non-solid shield are used to replace the metal plate to screen electromagnetic radiation.Based on the theory of electromagnetic compatibility,the electromagnetic radiation shielding results of metal lattice are analyzed in depth by using electromagnetic field theory and numerical calculation method.The effect of three variables aperture width l ,wire diameter d and quadrilateral apex angle θ on shielding effectiveness is studied.First,modeling and simulation with the electromagnetic simulation software HOBBIES is done,the corresponding SE of different mesh size is calculated,and finally the conclusion is drawn by comparing the two different results.

Key words: electromagnetic shielding;mesh structure;shielding effectiveness