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On-line Access: 2024-01-26

Received: 2022-10-15

Revision Accepted: 2023-02-02

Crosschecked: 2024-01-26

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Citations:  Bibtex RefMan EndNote GB/T7714


Lingjun YANG


Sheng SUN


Wei E.I. SHA


Long LI


Jun HU


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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.12 P.1776-1790


Multi-feed multi-mode metasurface for independent orbital angular momentum communication in dual polarization

Author(s):  Lingjun YANG, Sheng SUN, Wei E.I. SHA, Long LI, Jun HU

Affiliation(s):  School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; more

Corresponding email(s):   sunsheng@ieee.org

Key Words:  Orbital angular momentum (OAM), Geometric phase, Multi-feed metasurface, Spin-decoupled metasurface, Vortex beam communication

Lingjun YANG, Sheng SUN, Wei E.I. SHA, Long LI, Jun HU. Multi-feed multi-mode metasurface for independent orbital angular momentum communication in dual polarization[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(12): 1776-1790.

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author="Lingjun YANG, Sheng SUN, Wei E.I. SHA, Long LI, Jun HU",
journal="Frontiers of Information Technology & Electronic Engineering",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Multi-feed multi-mode metasurface for independent orbital angular momentum communication in dual polarization
%A Lingjun YANG
%A Sheng SUN
%A Wei E.I. SHA
%A Long LI
%A Jun HU
%J Frontiers of Information Technology & Electronic Engineering
%V 24
%N 12
%P 1776-1790
%@ 2095-9184
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2200471

T1 - Multi-feed multi-mode metasurface for independent orbital angular momentum communication in dual polarization
A1 - Lingjun YANG
A1 - Sheng SUN
A1 - Wei E.I. SHA
A1 - Long LI
A1 - Jun HU
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 24
IS - 12
SP - 1776
EP - 1790
%@ 2095-9184
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2200471

The wavefront control of spin or orbital angular momentum (OAM) is widely applied in the optical and radio fields. However, most passive metasurfaces provide limited manipulations, such as the spin-locked wavefront, a static OAM combination, or an uncontrollable OAM energy distribution. We propose a reflection-type multi-feed metasurface to independently generate multi-mode OAM beams with dynamically switchable OAM combinations and spin states, while simultaneously, the energy distribution of carrying OAM modes is controllable. Specifically, four elements are proposed to overcome the spin-locked phase limitation by combining propagation and geometric phases. The robustness of these elements is analyzed. By involving the amplitude term and multi-feed technology in the design process, the proposed metasurface can generate OAM beams with a controllable energy distribution over modes and switchable mode combinations. OAM-based radio communication with four independent channels is experimentally demonstrated at 14 GHz by employing a pair of the proposed metasurfaces. The powers of different channels are adjustable by the provided amplitude term, and the maximum crosstalk is -9 dB, proving the effectiveness and practicability of the proposed method.


摘要:携带自旋和轨道角动量(OAM)的波束在光学和无线电领域中被广泛应用。然而,大多数无源波束调控装置只提供有限操作,例如自旋(极化)锁定的波前、静态的OAM模式组合或不可控制的OAM能量分配。本文提出一种多馈源反射型超表面装置,可以在动态切换OAM模式和极化组合的同时,对各模式间的能量精确分配。具体而言,提出四个结合传播和几何相位的超表面单元来克服自旋锁定相位限制,并分析这些单元的鲁棒性。通过引入振幅项和多馈源技术,所提超表面可以生成具有可控能量和可变模式的OAM电磁波束。使用所提超表面装置,搭建了工作在14 GHz的基于OAM模式和圆极化复用的无线电通信系统。系统中最大串扰是−9 dB,证明了所提方法的有效性和实用性。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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