Open AccessEffect of absorbing materials on shielding effectiveness of incomplete cavity
Author(s) -
Xin Chen,
Xuegong Huang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1303/1/012074
Subject(s) - electromagnetic shielding , electromagnetic interference , electromagnetic compatibility , coupling (piping) , conducted electromagnetic interference , interference (communication) , electromagnetic radiation , materials science , emi , electromagnetic environment , wireless , acoustics , transmission (telecommunications) , electrical engineering , electronic engineering , computer science , engineering , optics , physics , telecommunications , composite material , channel (broadcasting)
With the deterioration of electromagnetic environment, the electronic devices are seriously affected by the electromagnetic interference in high frequency, which makes it especially important to find protective methods. In this paper, a wireless transmission equipment was taken as an example to analyze the effect of absorbing materials on shielding effectiveness of cavity by numerical simulation. The results show that the absorbing performance is little affected by the position of absorber, but greatly affected by the direction. Furthermore, absorbing materials can effectively reduce the electromagnetic coupling of penetrating wire and increase the shielding effectiveness at resonant frequencies, but have little effect on interference transmitted by conduction, which indicates that the absorbing materials is an effective but deficient solution for electromagnetic protection of electronic equipment with complete circuit.