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Shielding Effectiveness of Metallic Enclosures at Oblique and Arbitrary PolarizationsShielding effectiveness of metallic enclosures with apertures when illuminated by an oblique incidence arbitrary polarized plane wave has been studied by using an efficient hybrid modal/moment technique. Shielding effectiveness of rectangular enclosures with one, two, and four apertures at multiple points inside the enclosures for various frequencies has been calculated when the illuminating source flies by the front of the enclosure. The work shows that the shielding effectiveness is seriously affected by frequency, angle of incidence and polarization of the illuminating field; the number and orientation of apertures; and the location inside the cavity. It has been shown that the usual assumption about the normal incidence being the worst-case scenario for shielding effectiveness values may not be valid when there is more than one aperture in the cavity. The paper emphasizes the need for the statistical investigation of shielding effectiveness problem of metallic enclosures with apertures.
Document ID
20060022726
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Deshpande, Manohar D.
(NASA Langley Research Center Hampton, VA, United States)
Khan, Zulfiqar Ali
(Ohio State Univ. Columbus, OH, United States)
Bunting, Charles F.
(Oklahoma State Univ. Stillwater, OK, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Publication Information
Publication: IEEE Transactions on Electromagnetic Compatibility
Volume: 47
Issue: 1
ISSN: 0018-9375
Subject Category
Electronics And Electrical Engineering
Funding Number(s)
CONTRACT_GRANT: NCC1-01032
Distribution Limits
Public
Copyright
Other

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