Methods of accounting for inclusion-shape randomness in calculating the effective dielectric characteristics of heterogeneous textured materials |
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Authors: | M I Zavgorodnyaya I V Lavrov |
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Affiliation: | 1.MEPhI National Research Nuclear University,Moscow,Russia;2.National Research University of Electronic Technology,Zelenograd, Moscow,Russia |
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Abstract: | Two methods of accounting for the inclusion-shape randomness, an analytical method and a method for simulating a medium with several inclusion types, are considered for calculating the effective permittivity tensor of a textured heterogeneous matrix-type medium with inclusions of a random ellipsoidal shape. The methods are based on the generalized Maxwell–Garnett model. The rotation group representations are used to consider the distribution of inclusion orientations. The results of calculations by these methods of the effective dielectric characteristics of porous silicon models in an alternating electromagnetic field in the frequency range of 103–108 Hz are compared. |
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