Title: Optimization of Coating Material Selection Using the Skin Depth Approximation
Abstract: The objective of this paper is to present a fast method to select the optimal or suitable coating material for electromagnetic interference (EMI) shielded cable based on skin depth approximation technique. The optimal coating material should be the thinnest, has the lowest price but still functioning. The skin depth is the thinnest limit of the material to shield out a given electromagnetic wave. Skin depth or penetration depth plays an importance role in Radio Frequency Interference (RFI). It is a measure of the penetration of a plane electromagnetic wave into a material. The skin depth for any material can be computed using three parameters; signal/wave frequency, material's resistivity or conductivity and material's permeability. Anyway, in order to select the coating material, the totally accurate skin depth may not be necessary, especially when there are lots of material types to consider. In this paper, the rough calculation of skin depth or skin depth approximation is invented to speed up the calculation and is accurate enough for the task. The technique is focused on the proportion between resistivity and permeability of material and deriving a simpler approximation of the skin depth computation. According to the experimental results, this technique can be used to determine the lowest skin depth and the thinnest coating material for a given operating frequency.
Publication Year: 2018
Publication Date: 2018-12-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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