Design of nanocomposite EMC structures via unconditionally-stable nonstandard time-domain schemes and efficient GPU implementation

Abstract

A consistent time-domain methodology for the systematic design and broadband assessment of complicated nanostructured EMC devices is introduced in this paper. The novel technique combines a family of nonstandard locally one-dimensional finite-difference time-domain schemes with the advanced features of contemporary graphics processor units in general curvilinear coordinates which preserve the hyperbolic profile of Maxwell's laws. In this way, the resulting formulation remains completely explicit and generates effective dual meshes free of artificial vector parasites or spurious modes, while the frequency-dependent attributes of every setup are successfully modelled. Numerical results reveal the significant reduction of dispersion errors along with the considerable speedup compared to serialised realisations through various fabric/epoxy devices with nanocomposite media.