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 …

This paper presents an efficient equivalent circuit approach (ECA), based on a Floquet
modal expansion, for the study of the co-and cross-polarization in frequency selective …

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

This paper presents an analytical framework for the analysis of time-varying metal-based
metamaterials. Specifically, we particularize the study to time-modulated metal-air interfaces …

This article introduces two transmissive metasurfaces applied to normal windows, aiming to
improve the 5G outdoor-to-indoor (O2I) coverage. These windows can be utilized in various …

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

The presented method describes reflection and transmission of electromagnetic waves at
multiple closely stacked metal grids using multimodal S-parameter propagation. For that, the …

This letter shows an efficient hybrid method to study stacks of identical frequency selective
surfaces (FSSs) separated by possibly different dielectrics. The method takes advantage of …

Featured Application THz bandpass filter design. Abstract Cascading similar frequency
selective surfaces (FSSs) improves the roll-off rate and frequency selectivity of THz …