This paper presents new designs, implementation and experiments of metasurface (MTS)
antennas constituted by subwavelength elements printed on a grounded dielectric slab …

In recent years, new functionality and unprecedented wavefront control has been enabled
by the introduction of bianisotropic metasurfaces. A bianisotropic metasurface is …

An effective synthesis procedure for planar antennas realized with nonuniform metasurfaces
(MTSs) excited by a point source is presented. This synthesis potentiates previous …

Metasurfaces are thin two-dimensional metamaterial layers that allow or inhibit the
propagation of electromagnetic waves in desired directions. For example, metasurfaces …

The term “metasurface”(MTS) denotes an artificial surface constituted by a distribution of
electrically small elements that collectively exhibit equivalent homogeneous boundary …

Metasurfaces (MTSs) have emerged in the last years as a promising platform for next
generation planar devices in a broad range of frequencies, thanks to their unique field …

An accurate and simple analytical model for the computation of the reflection amplitude and
phase of Reconfigurable Intelligent Surfaces is presented. The model is based on a …

This paper presents a new theory for analyzing the leaky-wave (LW) mechanism supported
by planar metasurfaces (MTSs) described by continuous, anisotropic, nonuniform, locally …

Multibeam and beam-scanning capabilities of metasurface (MTS) antennas using multiple
feeds are investigated. The MTS synthesis is performed by direct inversion of an electric field …

Different types of efficiencies are introduced for metasurface (MTS) antennas based on
single point-source excitation: 1) the feed efficiency ε feed is the power delivered by the feed …