FINITE-ELEMENT ANALYSIS OF 2-DIMENSIONAL CHIROWAVEGUIDES

The finite element formulation for three-dimensional (3-D) chirowavegu ides cannot be applied to 2-D ones because all components of the elect romagnetic field in chiral media, even if a 2-D system is considered, are coupled. In this paper, the finite element formulation is describe d for the analysis of 2-D chirowaveguides. To show the validity of the present formulation, numerical results are shown for homogeneous chir owaveguides and are compared with exact solutions. Furthermore, to dem onstrate the applicability of the present approach, chirowaveguides wi th graded chirality admittance profiles are investigated.