Modeling of Microwave Propagation Properties of Generalized Anisotropic Composite

A highly accurate and computationally efficient large-scale model is proposed here for generalized anisotropic composite. Two dimensional obliquely incident plane wave is considered. Materials in all layers can be lossy or lossless generalized anisotropic. Maxwell's equations are first reformulated to yield a matrix form depending on four unknown transverse field components being tangential to the layer interface. A PQ decomposition of the coefficient matrix produces four eigenvalues which represent the transverse dependence of forward and backward propagating waves along the normal direction of the layer interface. Layer S- matrices are then derived for describing wave propagation from one layer to another. The full S-matrix for the whole composite is produced via cascading the layer S- matrices from the top layer to the bottom one. It relates the incident wave to the transmitted and reflected waves. Reflection and transmission coefficients of co- and cross-polarized waves are then obtained. Perfect electric conductor boundary condition is integrated into the multi-layer composite via modification of layer S-matrix for the first time. Fields in the composite are constructed via layer S- matrices.