This paper presents an analytical framework for the study of scattering and diffraction
phenomena in space-time-modulated metallic gratings. Using a Lorentz transformation, it is …

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 …

An original mechanism is here proposed to achieve polarization conversion from linear to
circular with the use of full-metal polarizing screens. Such screens are self-supported and …

A dual-band polarizer is presented that converts linear polarization into circular polarization
with orthogonal handedness in the satcom bands 19.7–20.2 GHz and 29.5–30 GHz. The …

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 work presents a fully analytical method for obtaining equivalent circuit models (ECMs)
that predict the magnitude and phase of scattering parameters for reflectarray (RA) and/or …

In this work, a full-wave partial element equivalent circuit (PEEC) model for 2-D periodic
metallic structures is proposed. The mixed potential integral equations (MPIEs) with periodic …

This paper presents a semianalytical approach to streamline the design process of a linear-
to-circular polarizer (LCP). The LCP is composed of only two identical frequency selective …