Analytical formulation for the shielding effectiveness of enclosures with apertures

Author

Robinson, Martin Paul ; Benson, Trevor M. ; Christopoulos, Christos ; Dawson, John F. ; Ganley, M.D. ; Marvin, A.C. ; Porter, S.J. ; Thomas, David W P

Author_Institution

Dept. of Electron., York Univ., UK

Volume

40

Issue

3

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

240

Lastpage

248

Abstract

An analytical formulation has been developed for the shielding effectiveness of a rectangular enclosure with an aperture. Both the magnetic and electric shielding may be calculated as a function of frequency, enclosure dimensions, aperture dimensions and position within the enclosure. Theoretical values of shielding effectiveness are in good agreement with measurements. The theory has been extended to account for circular apertures, multiple apertures, and the effect of the enclosure contents

Keywords

electric field measurement; electromagnetic shielding; magnetic field measurement; packaging; aperture dimensions; aperture position; circular apertures; electric shielding; enclosure contents; enclosure dimensions; frequency; magnetic shielding; measurements; multiple apertures; rectangular enclosure; shielding effectiveness; Apertures; Circuits; Conductivity; Electromagnetic measurements; Electromagnetic modeling; Finite difference methods; Frequency; Magnetic analysis; Magnetic shielding; Time domain analysis;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.709422

Filename

709422