A Hybrid Method for Electromagnetic Modeling of Large Scale Structures

This study is focused on developing a new hybrid method in computational electromagnetics to solve complex problems accurately in a timely fashion. The concept is based on dividing the original computational domain into smaller sub-domains. Each sub-domain is first solved independently, then the interactions between the sub-domains are accounted for through an iterative procedure. The main difference of the proposed hybrid scheme in this study in comparison with the current hybrid methods in the literature is that the proposed method allows users to have the freedom to choose from a number of available methods that suit the problem best. Current hybrid methods rely on a predetermined combination of numerical techniques. This flexibility in the choice of methods employed in the hybrid approach is achieved by creating an interface capable of interacting between the different methods properly. Furthermore, the proposed method renders to parallel implementation as each sub-domain is solved independently. The proposed hybrid scheme in its current state can be applied to three different scenarios: (i) multiple non-touching homogeneous objects, (ii) inhomogeneous objects, and (iii) multiple touching PEC objects. Numerical examples of various combinations of the methods are presented to validate the accuracy and the robustness of the proposed.