In this paper, ultra-thin metalenses are proposed to generate converging and non-diffractive
vortex beam carrying orbital angular momentum (OAM) in microwave region. Phase …

Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of
multiplexing a set of orthogonal modes on the same frequency channel to achieve high …

For many communication systems, including wireless networks, mobile, satellite, radar,
remote sensing, and many more applications, antenna arrays are very necessary. Utilizing …

Vortex electromagnetic wave carrying orbital angular momentum (OAM) is expected to break
through the shortage of spectrum resource because of its multiple independent modes …

In the last five years or so, there has been a great interest in RF OAM to address the
contradiction between the lack of wireless spectrum resources and the continually growing …

In this letter, a high-efficiency planar reflectarray with a small size of 3.87 λ 0× 3.87 λ 0 is
designed, which can effectively convert arbitrary polarized waves to orbital angular …

The emerging orbital angular momentum (OAM) based wireless communication is expected
to be a high spectrum-efficiency communication paradigm to solve the growing transmission …

In this letter, transmitting metasurface using single dielectric substrate for orbital angular
momentum (OAM) generation is presented in Ku-band. A dimension extension method is …

A circular polarization (CP) and mode reconfigurable wideband orbital angular momentum
(OAM) patch array antenna is presented. The proposed design is based on a reconfigurable …

In this letter, a 2× 2 low-profile broadband triple-mode orbital angular momentum (OAM)
array antenna is presented, which can be dynamically controlled with electrostatic method …