Text

Photonic Radio Frequency Orbital Angular Momentum Generation and Beam Steering

Orbital angular momentum (OAM) is a fundamental property of electromagnetic waves and is inherently carried by all frequencies of waves. In particular, OAM applications at radio frequencies (RFs) have attracted much attention due to their unique functionalities in communications. Enabled by the present wireless communication system, employing a circular antenna array (CAA) is a highly compatible and cost-effective approach for generating RF-OAM beams. In this paper, recent progress on RF-OAM communication systems with CAAs from the transceiver to the controller is summarized. A new scheme for RF-OAM generation and beam steering systems is proposed based on dual-wavelength control using CAA with the energy-conserved feature, where an integrated chip incorporating an arrayed waveguide grating (AWG) structure is introduced. Either microwave photonic phase shift or optical true time delay (OTTD) can be operated by this chip, benefiting from the phase amplification concept and the design of delay channels. Utilizing their combination, RF-OAM beams with arbitrary OAM states can be achieved for multiplexing and steered simultaneously. Furthermore, RF-OAM beam steering can be achieved without distortion in the desired transmission direction. This photonics-assisted method with an integrated chip is a potential strategy for improving the signal quality and reducing the system complexity of RF-OAM transmission systems.

Ketersediaan

Informasi Detail

Judul Seri

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

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 2107-2115

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

RADIO FREQUENCY
PHASE SHIFTER
INTEGRATED MICROWAVE PHOTONICS
OAM
OTTD

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3217386

Pernyataan Tanggungjawab

Mingyang Zhao, Shiyi Xia, Xunnan Zhang, Ling Yang, Yuanjiang Xiang, Zizheng Cao

Versi lain/terkait

Lampiran Berkas

Komentar