Full Text:
<332>
CLC number:
On-line Access: 2023-02-24
Received: 2022-10-15
Revision Accepted: 2023-02-02
Crosschecked: 0000-00-00
Cited: 0
Clicked: 429
Multi-feed multimode metasurface for independent orbital-angular-momentum communication in dual polarization
| |||||||||||||
Lingjun YANG, Sheng SUN, Wei E. I. SHA, Long LI, Jun HU. Multi-feed multimode metasurface for independent orbital-angular-momentum communication in dual polarization[J]. Frontiers of Information Technology & Electronic Engineering, 1998, -1(-1): .
@article{title="Multi-feed multimode metasurface for independent orbital-angular-momentum communication in dual polarization",
author="Lingjun YANG, Sheng SUN, Wei E. I. SHA, Long LI, Jun HU",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2200471"
}
%0 Journal Article
%T Multi-feed multimode 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 Journal of Zhejiang University SCIENCE C
%V -1
%N -1
%P
%@ 2095-9184
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2200471
TY - JOUR
T1 - Multi-feed multimode 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 - Journal of Zhejiang University Science C
VL - -1
IS - -1
SP -
EP -
%@ 2095-9184
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2200471
Abstract: The wavefront control of spin or orbital angular momentum (OAM) is widely applied in the optical and radio fields. However, most passive metasurfaces only 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.
Open peer comments: Debate/Discuss/Question/Opinion
<1>