Reconfigurable antennas are devices that can dynamically alter their geometry and/or
electromagnetic properties tofacilitate different behaviors. Numerous approaches for …

In this communication, a dual-band shared aperture antenna is presented. The proposed
antenna achieves dual-band operation by housing both a low-frequency patch antenna …

In this work, we propose a new dual-band and dual-circularly polarized spin-decoupled
reflectarray (RA) combined with frequency selective surface (FSS)-back that ensure the RA …

This article presents 3-D printed metal-only dual-band millimeter-wave circularly polarized
(CP) reflectarrays (RAs). The RAs' unit cell (UC) is made of an anisotropic metal brick …

In this article, we propose an ultrathin dual-band dual-circularly polarized (dual-CP) shared-
aperture reflectarray (RA) operating at K-and Ka-band utilizing only a single-layer substrate …

This contribution describes the design of a multibeam parabolic reflectarray to produce two
adjacent beams per feed in orthogonal circular polarization (CP) simultaneously at the …

This letter presents a dual-band dielectric resonator antenna (DRA) with a large frequency
ratio at millimeter-wave band. A large frequency ratio of 2.36 is formed by the TE 111 mode …

In this article, a compact shared-aperture dual-band dual-circularly polarized waveguide
antenna array is presented to achieve high gain and wide bandwidth in full-duplex satellite …

A millimeter-wave dual-band shared-aperture high-efficiency reflectarray antenna (RA)
based on the structure-reuse technique is proposed in this letter, which consists of two sets …

The subject of this work is the numerical design of a plasma-based dual-band reflective
surface. The proposed concept consists of a series of cylindrical plasma discharges placed …