Advances in reflectarrays and array lenses with electronic beam-forming capabilities are
enabling a host of new possibilities for these high-performance, low-cost antenna …

A detailed overview of various design methodologies and enabling technologies for beam-
scanning reflectarray antennas is presented in this article. Numerous advantages of …

A circularly polarized (CP) reflectarray with 2-D electronically steerable beam is reported.
The reconfigurable CP reflectarray element is realized using a circular-patch-based …

Exceptional advancement has been made in the development of graphene optical
nanoantennas. They are incorporated with optoelectronic devices for plasmonics application …

In this letter, a broadband and low loss circularly polarized (CP) electronically reconfigurable
reflectarray antenna (RRA) that can operate over the X-band is reported. The proposed RRA …

A reflectarray antenna monolithically integrated with 90 RF MEMS switches has been
designed and fabricated to achieve switching of the main beam. Aperture coupled microstrip …

A wideband, wide-scanning-angle, and high-efficiency 2 bit circularly polarized (CP)
reconfigurable reflectarray (RRA) is presented for 2-D dynamic beam control. The …

In this communication we propose the concept of a circularly polarized reflectarray (RA)
antenna capable of independent beam-switching in both K and Ka bands. The RA unit cell …

A planar array of passive lens elements can be phased to approximate the effect of a curved
dielectric lens. The rotational orientation of each element can provide the required phase …

We review the use of graphene to develop reconfigurable, miniaturized, and efficient
terahertz (THz) antennas and associated feeding networks, and attempt to identify current …