Higher Order FDTD Modeling of Boundaries and Material Interfaces

4 HIGHER ORDER FDTD MODELING OF BOUNDARIES AND MATERIAL INTERFACES 

The principal intention of a consistent numerical boundary approach for the manipulation of demanding media interfaces is the satisfaction of the proper physical jump conditions (far field, impedance, or metal). Their role is deemed crucial, since they can guarantee the stability of the time-domain simulation and assure the desired order of convergence over the entire domain. Evidence of this is the evolution of various state-of-the-art algorithms, whose foremost properties and characteristics are described in the following paragraphs. 

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