Thin artificial surfaces that act as high frequency bandgap structures have been recently
studied for the design of gap waveguides, hard surfaces, and planar lenses. Here, we …

Glide-symmetric structures have recently emerged as a smart choice to design planar lenses
and electromagnetic bandgap materials. We discuss here the conditions under which a …

In the study of electromagnetic wave propagation and scattering, researchers have always
faced the dichotomy of dealing directly with Maxwell's equations (and their complicated …

Many frequency-selective surface (FSS) structures are based on the use of a single periodic
array of slot/apertures in a conducting sheet embedded in a layered medium. However, it is …

Recently, three-dimensional (3D) metamaterials have undergone a revolution driven mainly
by the popularization of 3D-printing techniques, which has enabled the implementation of …

Metagrating is a new concept for wavefront manipulation that, unlike phase gradient
metasurfaces, does not suffer from low efficiency and also has a less complicated fabrication …

In this article, a novel technique for the miniaturization of corrugated structures is presented,
and multifolded corrugations (MFCs) are introduced. The miniaturization is achieved by …

1-D compound metallic grating (CMG) is a periodic structure with more than one slit in each
period. When CMG is combined with a graphene sheet as its cover, the incident light is …

Metallic compound gratings are studied in this work by means of an analytical equivalent
circuit approach in order to obtain its transmission and reflection properties when illuminated …

A wideband equivalent circuit is proposed for the accurate analysis of scattering from a set of
stacked slit gratings illuminated by a plane wave with transverse magnetic or electric …