Shielding Effectiveness Simulation of Brass-Iron Sandwich Films

Abstract:

This paper presents a simulation method on shielding effectiveness(SE). The method is completely general and able to optimize shielding materials. We found a sandwich structure that it can efficiently shield plane wave, using this simulation method. The relationship of film thickness and its skin depth was investigated in this study. Two-dimensional curves and three-dimensional graphs were calculated by tri-layer SE formulas. A sandwich structure, which is 3μm iron-brass-iron films, is capable of excellent shielding properties: the SE is between -73dB and -100dB in the frequency range of 1MHz~10MHz. Another sandwich structure with 12μm thickness of brass-iron-brass films can offer -680dB shielding attenuation. Simulation experiments indicate that sandwich films with diamagnetic and ferromagnetic layers have outstanding contribution on SE.

• Periodical: Solid State Phenomena (Volumes 124-126)
• Pages: 1613-1616
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.124-126.1613
• Online since: June 2007
• Authors: Xiao Ning Zhang, Qing Wang
• Keywords: Brass, Iron, Shielding Effectiveness, Simulation

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