Eﬀective Coeﬃcients of Isotropic Complex Dielectric Composites in a Hexagonal Array
Based on the asymptotic homogenization method, the local problems related to two-phase periodic ﬁbrous dielectric composites with isotropic and complex constituents are solved. A hexagonal periodicity distribution of the ﬁbers is considered. Explicit formulas for the real and imaginary parts of the eﬀective dielectric properties are derived. Such formulas can be computed for any desired precision related to a truncation order of an inﬁnite system of algebraic linear equations. Two simple analytical expressions are speciﬁed for the ﬁrst two truncation orders. Comparisons with results via other approachess how a good concordance. Hexagonal periodic lattices of acoustic scatterers are useful structures for acoustic applications.
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