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Shielding of Electromagnetic Fields of Current Sources by Hemispherican Enclosures

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3 Author(s)
Shastry, S.V.K. ; System Integration Section, Indian Space Research Organisation (ISRO), Bangalore 560 017, India ; Shamanna, K.N. ; Katti, V.R.

Presented here is a theory of electromagnetic shielding of fields due to current sources by an imperfectly conducting, hemispherican, open shell with its rim in contact with a perfectly conducting ground plane. Expressions for the shielding effectiveness (SE) of the enclosure excited by Hertzian dipole sources have been derived. Numerican values of SE obtained from these expressions have been compared with those for a similarly excited imperfectly conducting spherical shell [9].

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Electromagnetic Compatibility, IEEE Transactions on  (Volume:EMC-27 ,  Issue: 4 )