We review mechanically reconfigurable reflectarray (RA) and transmitarray (TA) antennas.
We categorize the proposed approaches into three major groups followed by a hybrid …

This paper highlights recent developments and challenges on beam steering characteristics
of reconfigurable transmitarray antennas. It introduces the operating principle of beam …

By utilizing the quadruple-ridged waveguide (QRW), a high-gain dual-polarized all-metallic
transmitarray (TA) antenna with wide gain bandwidth is proposed. The QRW has a fixed …

This article presents the design, construction and analysis of a 3D-printed transformed
hyperbolic flat lens working on the 30 GHz band. The transformed lens was printed using …

In this paper, a novel digitally reconfigurable unit-cell and transmitarray operating at X-band
is proposed that allows the implementation of beamforming and polarization conversion …

In this work we present a method for fabricating three dimensional, ultralight and flexible
millimeter metamaterial units using a commercial household 3D printer. The method is low …

The 6G communication system will be designed at sub-THz frequencies due to increasing
demand in data rates, emerging new applications and advanced communication …

This article presents an optimized dual-polarized transmitarray antenna (TA) designed for
MIMO applications at the Ka-band, capable of switching beams in two directions. The …

In this article, a dielectric-only reflectarray (RA) with a wideband behavior is proposed as an
alternative to conventional metallo-dielectric configurations. The introduced unit-cell (UC) …

A simple, nearfield transformation meta-structure is proposed to increase the directivity of
resonant cavity antennas (RCA). The meta-structure is comprised of 14× 14 meta-atoms or …