An accurate equivalent circuit model (ECM) for general multiwire multiorder printed circuit
board (PCB) metagratings (MGs) is developed. The effective impedances of the grating …

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 …

Blazed gratings are optical components typically employed in modern optical engineering.
To realize high-precision and high-efficiency fabrication of blazed gratings on reliable …

Recently, it was revealed that conventional gradient metasurfaces are fundamentally limited
on their overall efficiency to reroute the impinging waves towards arbitrary directions in …

We theoretically formulate and experimentally demonstrate the design of metagratings
(MGs) composed of periodic rectangular grooves in a metallic medium, intended for perfect …

In this paper, we study the scattering and diffraction phenomena in time-modulated
metamaterials of metallic nature by means of Floquet equivalent circuits. Concretely, we …

A simple approach to acquire wide-band/angle blazing operation in 1-D metallic gratings is
investigated by means of mode-matching and equivalent circuit analysis. The gratings are …

Meta-devices with high operation efficiency to control electromagnetic waves are of great
interest in a variety of applications. In this paper, we propose a general design method to …

A generalized Poisson summation formula produces exact expressions for the locations and
strengths of line currents that radiate preselected plane waves. The line currents can be in …

This communication presents a novel azimuthal six-channel retrodirective metagrating (MG).
The designed MG employs the planar hexagonal unitcell to ensure retrodirective channels …