The Arago–Poisson Spot: New Applications for an Old Concept

O Emile, J Emile - Photonics, 2024 - mdpi.com
Herein, we report some specific properties and applications of the so-called Arago–Poisson
spot in optics. This spot results from the diffraction of a plane wave by an occulting disk that …

Transmitarray antenna for conical beam scanning

A Papathanasopoulos… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Conventional transmitarray antennas are designed to produce a directional pattern with the
beam peak in a single direction when the feed is placed at a distinct location. A real-life …

A reflective metasurface for generating dual‐mode dual‐polarized high‐order Bessel vortex beams with equal divergence angle

Y Huang, X Li, X Guo, Z Qi, H Zhu… - … Microwaves, Antennas & …, 2022 - Wiley Online Library
A single‐layer reflective metasurface is proposed in this study to generate dual‐mode dual‐
polarized high‐order Bessel vortex beams with equal divergence angle in Ka‐band. The …

Multiplexing signals with twisted photons by a circular arc phased array

PO Kazinski, PS Korolev, GY Lazarenko, VA Ryakin - Annals of Physics, 2024 - Elsevier
The theory of multiplexing electromagnetic signals by means of twisted photons generated
by a uniform circular array (UCA) is developed in the case when the receiving antenna …

Professor Yahya Rahmat-Samii's Exceptional Contributions to Research and Teaching as Seen by a Ph. D. Student: A Great Advisor and a True Friend

A Papathanasopoulos - 2023 IEEE International Symposium on …, 2023 - ieeexplore.ieee.org
This paper aims to recognize and honor the exceptional contributions of Professor Yahya
Rahmat-Samii to the fields of research and teaching as seen through the eyes of a Ph. D …

[PDF][PDF] 6 GHz Frekansında Orbital Açısal Momentum (OAM) Anteni: Dairesel Dizili 4 Yama Anten

A Uzun, İA Duru, İ Tekin - ursitr23.boun.edu.tr
Bu bildiride, 6 GHz Wi-Fi frekansında çalışan, Wi-Fi'ın kapasitesini iki katına çıkarmak için iki
farklı ortagonal modda vorteks (OAM) dalga üretebilen 4 yama antenden oluşan dairesel …

[引用][C] OAM transmission for beam-assist with RF lens

MH Lee, SY Shin - 한국통신학회학술대회논문집, 2022 - dbpia.co.kr
This paper proposes a UCA transceiver to consider beam divergence (BD) and improve the
capacity exploiting radio frequency (RF) lens. According to the BD, the proposed method …