ABSTRACT
This chapter discusses the medium response using bianisotropic material relations. Bianisotropy is defined and various classifications of such media are using the concepts of dissipation, reciprocity, isotropy, and magnetoelectric coupling, as well as the mathematical properties of the material parameter dyadics. The characterization of bianisotropic materials requires four dyadic parameters. The constitutive relations relate the electric and magnetic field strength quantities to the electric and magnetic flux densities. The main effect of the perfect electromagnetic conductor (PEMC) medium as a boundary is to rotate the plane of polarization of the reflected wave, which may find interesting applications in antenna and microwave technologies. The characterization of bianisotropic media through the constitutive relations allows much flexibility and certainly encompasses a large variety of metamaterials. The PEMC medium, belonging to the subclass of magnetoelectric and bi-isotropic materials, forms one interesting example of such metamaterials.
