The generalized TLM based finite-difference time-domain (FD-TD) method and its applications to frequency-dependent and anisotropic media

In this paper, the generalized TLM-based finite-difference time-domain method (FD-TD) is presented for modeling and simulation of frequency-dependent and anisotropic media. The method is the generalized FD-TD form of the TLM symmetrical condensed node and therefore retains the properties of both the FD-TD and TLM methods. It allows the direct use of electromagnetic field quantities in the algorithm and direct treatments of anisotropic media.