Efficient TLM-Based Approach for Compact Modeling of Anisotropic Materials and Composites

Compact modeling approach of anisotropic media by using the Z-TLM method is proposed. Thin anisotropic multilayer material is efficiently described through connection procedure between two Z-TLM mesh cells, by using the scattering parameters to create a digital filter-based compact model. Model is incorporated into non-uniform TLM grid given here in a form fully complying with the originally proposed Z-TLM method algorithm. Accuracy and efficiency of the compact model is confirmed on a few examples through comparison with the fine mesh results.