Research on Arbitrary-Order FDTD Method Based on Face-Centered Cubic Grids

An iterative formulation of arbitrary-order FDTD method is proposed based on a face-centered cubic (FCC) in this paper. Through the distribution of electromagnetic field nodes in FCC grid, the coefficients of arbitrary-order iterative formulations are theoretically derived. We validate the proposed method by two numerical examples. The results of this studies can provide guidance for the practical application of high-order FCC-FDTD method.