Electromagnetic Surface Waves for Some Artificial Bianisotropic Media

A general formalism for electromagnetic surface waves associated with bianisotropic media is presented. Surface waves for some artificial bianisotropic media, namely uniaxial chiral medium, omega medium, and transversely uniaxial omega medium, are investigated. It is shown that a lossless uniaxial chiral medium cannot support a surface wave, while omega medium and transversely uniaxial omega medium can support surface waves under certain conditions and the corresponding dispersion relations for surface polaritons are derived. A general formalism for the analysis of surface waves for bianisotropic materials in the presence of microstrip is also given.