Airy Beam Multifunctional Terahertz Metasurface

Li, Jiu-sheng; Zhong, Min

doi:10.1109/lpt.2023.3234062

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…The Airy beam that carries OAM has non-diffraction and sudden self-focusing properties, as well as infinite dimensions, which have great application potential in high data rates and high-capacity communication systems. An Airy beam multifunctional terahertz metasurface is proposed for multiple functions under different polarization waves [4]. A 2-D Airy beam with self-bending and non-diffraction characteristics is generated and verified at microwave frequencies by using a metasurface composed of a single-layer of strip resonator [5].…”

Section: Introductionmentioning

confidence: 99%

Millimeter-wave Dual-frequency Dual-polarized Circular Airy OAM Beams by Tensor Holographic Impedance Metasurface

Huang,

2024

PIER Letters

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In this paper, analytical formulas for tensor holographic impedance metasurface (THIMS) are presented to generate circularly polarized (CP) circular Airy orbital angular momentum (OAM) multibeams with flexibly independent control of the beam direction, polarization, and OAM mode. As an example, a millimeter-wave THIMS is designed to generate CP circular Airy OAM dual beams: Beam-I: (θ1 = 0, φ1 = 0, LHCP, l = +1, 36 GHz), Beam-II: (θ2 = 0, φ2 = 0, RHCP, l = 0, 30 GHz). To the knowledge of the authors, there is very little literature on circular Airy beams that have been generated with THIMS. Compared with the published metasurface on Airy beam, the created THIMS has the following advantages simultaneously: dual frequencies, dual CP, small size 30λ0 at 30 GHz, high conversion efficiency (CE) (above 40%), long nondiffractive distance (ND) (up to 134.4λ0), high OAM purity (above 89%), comodulation for polarization, beam direction and OAM mode. The generated circular Airy OAM beams can be used in near-field scenarios such as high-efficiency wireless power transmission (WPT), high-capacity communication systems, and high-resolution imaging.

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Section: Introductionmentioning

confidence: 99%