Analysis Of Electromagnetic Shielding Enclosure For Digital Forensics Examination

Résumé: Shielding enclosures play a crucial role in digital forensics by providing a controlled environment that shields electronic devices from external electromagnetic interference and radio frequency interference. This paper presents an investigation into the analysis of the shielding effectiveness of rectangular conductive enclosures with various aperture configurations. The approach utilises scattering parameters, specifically the reflection coefficient (S11) and transmission coefficient (S21). The Ansys HFSS simulation software is used to model the enclosure and compute the S-parameters within the frequency range of 1 GHz to 2 GHz. The numerical results of shielding effectiveness (SE) obtained are compared with analytical methods, such as Robinson’s method based on the transmission line theory (TLM) model, and show good agreement with analytical formulas. The prediction methods presented in this paper can be used by Electromagnetic Compatibility engineers to assess the risk of failures in digital systems exposed to electromagnetic noise, particularly for forensic device testing applications.

Publié dans la revue: Algerian Journal of Forensic Sciences and Criminology