Feasibility study of using porous metal as practical shielding material

Author

See, K.Y. ; Ling, Y. ; Koh, W.J. ; Ma, J. ; Ho, S.F.

Author_Institution

Electromagn. Effects Res. Lab., Nanyang Technol. Univ., Singapore

fYear

2008

fDate

19-23 May 2008

Firstpage

451

Lastpage

454

Abstract

This paper presents the feasibility study of using porous metal for electromagnetic shielding purposes. Using the highly porous aluminum (close to 90% porosity) as the material under study, its shielding effectiveness (SE) was studied systematically. A preliminary measurement was carried out to evaluate the SE of porous aluminum sample. This was followed by a full-wave EM modeling of the porous aluminum shielded box. Finally, a shielded enclosure was assembled using porous aluminum panels and the overall SE of this enclosure was measured. With the conventional installation method, the enclosure has been found to provide at least 60 dB shielding effectiveness in the frequency range of 250 kHz to 1 GHz.

Keywords

aluminium; electromagnetic shielding; porous materials; Al; aluminum; electromagnetic shielding; frequency 250 kHz to 1 GHz; full-wave EM modeling; porous metal; shielding effectiveness; Aluminum; Electromagnetic compatibility; Electromagnetic measurements; Frequency measurement; Inorganic materials; Thickness measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008. Asia-Pacific Symposium on

Conference_Location

Singapore

Print_ISBN

978-981-08-0629-3

Electronic_ISBN

978-981-08-0629-3

Type

conf

DOI

10.1109/APEMC.2008.4559909

Filename

4559909