Constraints on effective constitutive parameters of certain bianisotropic laminated composite materials

摘要

When the electrically thin unit cell of a laminated composite material ismade of two bianisotropic sheets whose constitutive properties in the thicknessdirection are decoupled from the constitutive properties in the interfacialplanes, the laminated composite material can be homogenized into a material notall of whose constitutive parameters are independent of each other. Thisnon-independence of the constitutive dyadics of the constituent materials andthe homogenized composite material is captured by two simple constraints, whichmay not hold if even one of the two constituent materials has more complicatedconstitutive properties than stated above.