Abstract
The vector spherical multipole analysis is applied to determine the shielding effectiveness and the scattering cross sections of a homogeneous spherical shell with arbitrary thickness and material parameters. This canonical EMC-problem is formulated as a classical three-domain-problem and then solved rigorously with respect to the continuity-conditions of the tangential field components. Numerical results are presented especially for a shell material with low conductivity. In case of a well conducting thin shell an asymptotic evaluation of the multipole solution leads exactly to the results obtained byKaden, but in addition the amplitude of the shielding effectiveness at the resonance frequencies can be predicted.
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