Perfect Electric Conductor Implementation in 3D Lebedev FDTD

In modeling of anisotropic materials, the Lebedev grid is an alternative method to regular Yee grid with collocated field components. This complicates handling Perfect Electric Conductor (PEC) interfaces because normal field components need to be accounted for. In this paper, the implementation of 3D PEC boundaries such as outside edges is presented. The accuracy of the method is verified by simulating a ridged resonator filled with an anisotropic material.