Beam‐steering capability for OAM‐based reflectarray at 5G‐mmWave frequencies

A Ali, M Khalily, T Brown… - IET microwaves, antennas …, 2023 - Wiley Online Library
The ability of the reflectarray antenna (RA) to perform orbital angular momentum (OAM)
beam‐steering with low divergence angles at the fifth generation (5G) millimetre‐wave …

Reflective metasurface for 5G mmWave coverage enhancement

A Tishchenko, A Ali, P Botham, F Burton… - … on Antennas and …, 2022 - ieeexplore.ieee.org
The proposed intelligent reflective surface (IRS) is presented to compensate for the path loss
and enhance the coverage of 5G networks at mm-wave band. A (π) shaped element with …

Ultra-wideband dielectric reflectarray antenna with OAM beams for mm-wave applications

A Ali, M Khalily, R Tafazolli - 2022 International Symposium on …, 2022 - ieeexplore.ieee.org
The proposed structure is presented to improve the inherited limited bandwidth and reduce
the production of grating lobes in reflectarray antennas (RAs). A dielectric RA with 200 mm …

Multi-Beam Reflectarray for Future High Throughput Satellites

A Ali, C Kourogiorgas, J Yates… - … on Antennas and …, 2023 - ieeexplore.ieee.org
This paper presents a method to generate multiple spot beam coverage based on
metasurfaces where the incident wavefront from a single feeder is manipulated to reflect …

[PDF][PDF] OAM-based electromagnetic metasurfaces for mmWave and THz wireless communications

A Ali - 2023 - openresearch.surrey.ac.uk
Broadening the bandwidth, increasing the modulation level, and increasing spatial
multiplexing order are potential pillars to improve the performance of wireless …

Multi-Band Dual-Beams Reflectarray for Mode and Polarization Multiplexing of OAM Beams

A Ali, M Khalily, T Brown… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
This paper proposes a novel method to enable mode and polarization OAM multiplexing at
four different frequencies (30, 70, 90, and 110 GHz) through a reflectarray (RA) antenna. The …