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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 12
Adv. Radio Sci., 12, 83–89, 2014
https://doi.org/10.5194/ars-12-83-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 12, 83–89, 2014
https://doi.org/10.5194/ars-12-83-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Nov 2014

10 Nov 2014

Analytical calculation of intrinsic shielding effectiveness for isotropic and anisotropic materials based on measured electrical parameters

M. Kühn1, W. John2, and R. Weigel3 M. Kühn et al.
  • 1AUDI AG, 85045 Ingolstadt, Germany
  • 2SIL System Integration Laboratory GmbH, Technologiepark 32, 33100 Paderborn, Germany
  • 3Lehrstuhl für Technische Elektronik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstrasse 9, 91058 Erlangen, Germany

Abstract. This contribution contains the mechanisms for calculation of magnetic shielding effectiveness from material samples, based on measured electrical parameters. For this, measurement systems for the electrical conductivity of high and low conductive material samples with respect to the direction of current flow are presented and discussed. Also a definition of isotropic and anisotropic materials with electrical circuit diagrams is given. For prediction of shielding effectiveness for isotropic and anisotropic materials, several analytical models are presented. Also adaptions to gain a near field solution are part of this contribution. All analytical models will also be validated with an adequate measurement system.

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