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Reduction Characteristics of Electromagnetic Fields in Cavity by Lossy Dielectric Materials  

정광현 (영남대학교 전자정보공학부)
김기채 (영남대학교 전자정보공학부)
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Abstract
This paper presents the delivered power and reflection coefficient in metallic shielding enclosure excited by the interior source, which are evaluated with the method of moments, and describes a method for reducing the radiation of electromagnetic fields in the cavity by putting lossy dielectric material in one inside wall. In this paper we introduce carbon polystyrene-foam as lossy dielectric material and observe it's effects of reduction when the thickness and permittivity of lossy dielectric material are changed. The results show that the reduction of the electromagnetic radiation can be achieved by controlling the amount of carbon in lossy dielectric material. The theoretical analysis is verified by the measured delivered power.
Keywords
EMI; Reduction; Dielectric Material; Shielding Enclosure; Electromagnetic;
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1 Numerical and Experimental study of the Shielding Effectiveness of a metallic enclosure /
[ F.Olyslager;E.Laermans;D.De Zutter;S.Criel;R.De Smedt;N.Lietaert;A.De Clercq ] / Electromagnetic Compatibility, IEEE Trans.   ScienceOn
2 A study on suppression of cabinet resonance by means of the hybrid magnetic materials /
[ Y.Hotta;Xiaohe Li;O.Hashimoto;S.Nitta ] / 2001 IEEE International Symposium on
3 Reduction of SAR in Human Body by Lossy Dielectric Shield /
[ T.Nakamura;S.Tokumaru;S.Itoh ] / IEICE Trans.
4 Fast Evaluation of Shielding Efficiency of Rectangular Shielding Enclosures /
[ W.Wallyn;F.Olyslager;E.Laermans;D.DeZutter;R.De Smedt;N.Lietaert ] / 1999 IEEE International Symposium on
5 /
[ D.M.Pozar ] / Microwave Engineering
6 Numerical and Experimental Corroboration of an FDTD Thin-Slot Model for Slots Near Corners of Shielding Enclosures /
[ M.Li;K.P.Ma;J.L.Drewniak;T.H.Hubing;T.P.Van Doren ] / IEEE Trans. Electromagnetic Compatibility   ScienceOn
7 EMI from cavity modes of shielding enclosure-FDTD modeling and measurements /
[ M.Li;J.Nuebel;J.L.Drewniak;R.E.DuBroff;T.H.Hubing;T.P.Van Doren ] / IEEE Trans. Electromagnetic Compatibility
8 /
[ R.F.Harrington ] / Field Computation by Moment Methods