Pulsed EM-field coupling between bounded and narrow metasurfaces

Abstract

We have demonstrated in Chapter 10 that the Cagniard-DeHoop method of moments (CdH-MoM) can serve for evaluating the electromagnetic (EM) coupling between planar strips supporting electric currents. In this chapter, the EM reciprocity theorem of the time-convolution type is applied, again, to put forward an efficient computational methodology that is capable of calculating the pulsed EM scattering by multiple metasurfaces exhibiting both magnetic and dielectric constitutive properties. In particular, it is shown that under the assumption of piecewise linear space-time distribution of unknown currents, the pertaining EM reciprocity relation can be cast into a system of time-convolution type that is amenable to its solution via the marching-on-in-time technique. In addition, a special case concerning the EM coupling between relatively narrow metastrips is analyzed in detail.