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Derivation of Lichtenecker's Logarithmic Mixture Formula From Maxwell's Equations

Simpkin, R.·2010·IEEE Transactions on Microwave Theory and Techniques

Abstract

Lichtenecker's logarithmic mixture formula for dielectrics has proven to be a useful practical formulation for determining the effective permittivity of homogenized dielectric mixtures. However, the formula itself has long been regarded as semiempirical in nature without firm theoretical justification. This paper shows that Lichtenecker's formula can be derived by applying Maxwell's equations and the principle of charge conservation to a mixture for which the spatial distribution of shapes and orientations of the components is randomly distributed. Furthermore, the relationship between the Lichtenecker formula and the well-known mixture formulas due to Maxwell-Garnett is demonstrated. Similarly, it is shown that the symmetric mixture formula of Bruggeman can also be obtained from the Lichtenecker formula.

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Metadata

Authors
Simpkin, R.
Venue
IEEE Transactions on Microwave Theory and Techniques
Published
2010-03
Volume
58
Issue
3
Pages
545-550
ISSN
  • 0018-9480 (ISSN-L)
  • 1557-9670
OpenAlex
W2128872022
Cited by
253
References
1
FWCI
4.26
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Derivation of Lichtenecker's Logarithmic Mixture Formula From Maxwell's Equations. https://app.cochat.ai/papers/10.1109/tmtt.2010.2040406
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Simpkin, R. (2010). Derivation of Lichtenecker's Logarithmic Mixture Formula From Maxwell's Equations. IEEE Transactions on Microwave Theory and Techniques. https://doi.org/10.1109/tmtt.2010.2040406

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