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 work presents the complete design process of a 3-D fully metallic reflectarray. The
structure is composed of two unit cells with resonators in the z-direction that are phase …

This paper presents a dual-band metal-only antenna that operates at 20 and 40 GHz. The
unit cell consists of a square waveguide with short circuit termination and a square metallic …

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

A wideband high-efficiency metal-only folded reflectarray antenna (FRA) using 3-D
subwavelength detachable trapezoidal grooved element (SDTGE) is proposed in this …

We propose a method to extract the equivalent material parameters and circuit parameters
for all-metallic tensor metamaterials. The metamaterials consist of an arrangement of sub …

A variable-width ring clover element is proposed for the design of a single-layer broadband
reflectarray antenna (RA). The proposed element containing a clover patch and a variable …

A 3D metal‐only waveguide‐based phoenix cell for reflectarray is presented. The proposed
cell consists of two concentric square waveguides and a metallic block in the centre, which …

This paper introduces a novel approach to designing Frequency Selective Surfaces (FSS)
for dichroic mirrors in Deep Space antennas. Unlike conventional periodic FSS designs, the …

A reflectarray unit cell design with sensing capability at millimeter-wave frequencies is
presented in this paper. The proposed unit cell is based on slotlines spatially arranged in 3 …