Article
An EMI Estimate for Shielding-Enclosure Evaluation
IEEE Transactions on Electromagnetic Compatibility
Abstract
A relatively simple, closed-form expression has been developed to estimate the EMI from shielding enclosures due to coupling from interior sources through slots and apertures at the enclosure cavity modes. A power-balance method, Bethe's (1944) small-hole theory, and empirically developed formulas for the relation between radiation, and slot length and number of slots, were employed to estimate an upper bound on the radiated EMI from shielding enclosures. Comparisons between measurements and estimated field strengths suitably agree within engineering accuracy.
Department(s)
Electrical and Computer Engineering
Research Center/Lab(s)
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
- Bethe's Small-Hole Theory,
- EM Coupling,
- EM Diffraction,
- EMC,
- EMI Estimate,
- Apertures,
- Cavity Resonators,
- Cavity-Mode Resonances,
- Closed-Form Expression,
- Electromagnetic Coupling,
- Electromagnetic Interference,
- Electromagnetic Shielding,
- Electromagnetic Wave Diffraction,
- Enclosure Cavity Modes,
- Engineering Accuracy,
- Estimated Field Strengths,
- Interior Sources,
- Measurements,
- Power-Balance Method,
- Radiated EMI,
- Radiation,
- Shielding Enclosures,
- Slot Length,
- Slots,
- Upper Bound,
- Apertures,
- Cavities,
- Diffraction,
- Electrical Equipment Enclosures,
- Shielding
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2001 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
8-1-2001
Publication Date
01 Aug 2001
Disciplines
Citation Information
Min Li, James L. Drewniak, S. Radu, Joe Nuebel, et al.. "An EMI Estimate for Shielding-Enclosure Evaluation" IEEE Transactions on Electromagnetic Compatibility Vol. 43 Iss. 3 (2001) p. 295 - 304 ISSN: 0018-9375; 1558-187X Available at: http://works.bepress.com/thomas-vandoren/8/