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Structured Beamforming Based on Orbital Angular Momentum Mode-Group

The structured beams, which can manipulate arbitrary intensity and phase of electromagnetic rays, are significant in communication and sensing. The vortex electromagnetic wave carrying orbital angular momentum (OAM) exhibits the phase distribution of the helical wavefront, which can be viewed as a complete set of eigenmodes for electromagnetic waves. It provides a flexible beamforming method to achieve the azimuthal pattern diversity by the spatial superposition of multiple specific OAM modes. We have proposed a novel form of OAM wave with a two-dimensional structure called plane spiral OAM (PS-OAM), which is conducive to overlapping different modes. Based on this, the PS-OAM mode-group can be employed to modify the spatial beam structure and form structured electromagnetic beams. This kind of beam not only retains the inherent vorticity and orthogonality of the OAM waves but also tackles the difficulties in applications stemming from the singularity-caused dark zone and beam divergence of conventional OAM waves. In this paper, the construction and manipulation of the structured beams are investigated, and the properties are analyzed. The potential applications in multiple-input multiple-output (MIMO) communication, orthogonal multiplexing communication, and spatial field digital modulation (SFDM) communication are envisioned.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.41 No.7 April 2023

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 1997-2006

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

SPACE DIVISION MULTIPLEXING
ORBITAL ANGULAR MOMENTUM
MIMO COMMUNICATION
STRUCTURED RADIO BEAM
PLANE SPIRAL OAM
SPATIAL FIELD DIGITAL MODULATION

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3215211

Pernyataan Tanggungjawab

Xianmin Zhang, Shilie Zheng, Xiaowen Xiong, Zelin Zhu, Yuqi Chen, Zhixia Wang, Xiaonan Hui, Wei E. I. Sha, Xianbin Yu

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