Restoring the physical meaning of metamaterial constitutive parameters

  • Alù A
  • 92


    Mendeley users who have this article in their library.
  • 87


    Citations of this article.


Metamaterial homogenization is often based on implicit assumptions inspired to natural material models. Retrieved effective permittivity and permeability, however, are often non-physical, especially near the array resonances, of most interest for metamaterial applications. We explain here the nature of typical homogenization artifacts, relating them to an inherent form of magneto-electric coupling associated with the finite phase velocity along metamaterial arrays. Our findings allow restoring the proper definition and physical meaning of local constitutive parameters for metamaterials.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Andrea Alù

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free