Generic Spectral Immittance Approach for Fast Design of Multilayered Bilateral Structures Including Anisotropic Media

In this letter, the spectral domain immittance-based approach is generalized for a fast and efficient design of bilateral microwave structures with multilayered anisotropic layers. This technique is based on the derivation of dyadic Green's functions by introducing, for the first time, a new conjoint admittance parameter. An original configuration based on three-line bilateral couplers is computed and validated using neural network models. Furthermore, numerical examples are presented and close agreement is obtained between simulated results and published data. The CPU time is also investigated