Antennas that generate orbital angular momentum (OAM) have the potential to significantly
enhance the channel capacity of upcoming wireless systems. This is because different OAM …

This paper presents a new approach to producing a conical beam (CB) with highly
azimuthal symmetry through a series-feed uniform circular array (UCA) antenna using …

A compact self-quadruplexing antenna is presented, using substrate-integrated waveguide
(SIW) technology and operating at 5.8, 7.4, 28, and 38 GHz. The design process is based on …

This brief presents a self-diplexing antenna with harmonic-suppression capability. The
suggested antenna operates at 7.8 and 9 GHz and maintains a harmonic suppression of …

A multiband and multi-mode antenna with circular polarized conical patterns is suitable for
achieving desired spectral efficiency, increased capacity, and spatial diversity for IoT …

Abstract Theory and design aspects of the Slotted Waveguide Antenna (SWA) array for the
simultaneous generation of Orbital Angular Momentum (OAM) modes are proposed in this …

Plasmonic structures have attracted a lot of attention due to their potential application in all
optical integrated circuits. In this matter, four and eight output-channel DEMUXs have been …

Generating high-order and high-purity OAM vortex beams and regulating their wavefronts
are of great importance in terahertz communication. However, the current methods used to …

In the present letter, a vortex phase imaging method is proposed to improve the lateral
resolution of a millimeter-wave (MMW) focal plane imaging system. For the efficient …

Despite the significant interest in pattern synthesis over the decades, the beam synthesis of
orbital angular momentum (OAM) has received relatively little attention. In this article, we …