Frequency-Domain TLM Method with Cartesian Block Meshing

A frequency-domain TLM with Cartesian block meshing scheme is presented in this article. This approach allows arbitrary Cartesian non-structured local mesh refinement in critical regions (e.g., discontinuities and important fine details). This versatile meshing technique is very useful in handling multiscale problems without exhausting computational resources. Moreover, this proposed approach permits the computation of the EM-fields at specific frequencies using fast linear-solvers without the need to run many time-domain iterations especially for highly resonating structures. Simulation experiments and comparison to other computational EM schemes are presented to show the validity and the performance of the proposed approach.