Frequency coding all-dielectric metasurface for flexible control of electromagnetic radiation

Zhu, Lei; Li, Tai Cheng; Huang, Jia Huang; Dong, Lijun; Li, Hao-Dong; Zhou, Wen; Zhao, Chun Hui

doi:10.1007/s00339-020-04220-y

Cited by 6 publications

(2 citation statements)

References 42 publications

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“…Therefore, at 20 GHz, wave incidence and reflection at a predetermined angle can be implemented. Compared with [13][14][15], the frequency multiplexed metasurface designed in this paper can significantly reduce the mutual interference of parameters between operating bands, and the frequency band spacing is more prominent. In addition, the reflection amplitude of the unit structures is near 1, and the reflection of electromagnetic waves can be handled more flexibly.…”

Section: The Design Of Metasurfacementioning

confidence: 99%

Design of Frequency Multiplexed Coding Metasurface for Dual-Functional Beam Control

Hao¹,

Ling²,

Ruan³

et al. 2022

PIER Letters

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A frequency multiplexed coding metasurface controlling beam is proposed to enrich the functions of a single metasurface. A square F4B dielectric substrate with a copper-clad bottom surface and a V-shaped and quadrangular cross-shaped metal structure is used as the unit. Applying the different responses of x and y polarized waves and optimization of structural parameters, we can obtain 1-bit coding units for the two frequency bands. The reflection phase can be modulated independently of each other. The design of a dual-band metasurface with different beam splitting effects was realized, achieving the goal of different frequency multiplexing functions on a single metasurface. An RCS reduction of 11 dB at 12 GHz and a double beam splitting at 20 GHz with a pitch angle of ±47.6 • are achieved by metasurface. The test results agree well with the simulation results. The proposed metasurfaces offer a simple structure, low cost, good performance, and promising great applications in areas such as frequency multiplexed communications.

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Section: The Design Of Metasurfacementioning

confidence: 99%

Design of Frequency Multiplexed Coding Metasurface for Dual-Functional Beam Control

Hao¹,

Ling²,

Ruan³

et al. 2022

PIER Letters

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show abstract

“…Yet the limited number of orthogonal polarizations forbid generating more channel independent beams. Frequency-demultiplexed metasurfaces are also found in literature [31][32][33] and they manifest different responses under different frequencies. Such frequency-coded metasurfaces are used for generating frequency controlled multibeam, but the beam configurations under different frequencies are hard to control and lack flexibility.…”

Section: Introductionmentioning

confidence: 98%

Multibeam Metasurface Antenna Based on Orbital Angular Momentum Modes Demultiplexing Feeding

Wang¹,

Hu²,

Chen³

et al. 2022

Preprint

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<p>In this paper, the design and implementation of an multibeam metasurface antenna with multiple independent channels using orbital angular momentum (OAM) demultiplexing feeding are proposed. Several aperture phase distributions that convert incident vortex beams with different and orthogonal topological orders into designated directional pencil beams are acquired and superimposed to form a metasurface aperture that, under excitations of vortex beams with multiple orders, produces independent multibeam each with a predefined direction. For implementation, a transmissive metasurface working at 5.15 GHz is designed with four beams pointing at arbitrary half space directions corresponding to incident vortex beams of order +1, −1, +3 and −3 respectively. Techniques such as OAM modes spacing and aperture partitioning are also utilized for reducing sidelobe levels (SLLs). Furthermore, a similar multibeam metasurface antenna with additional linear-to-circular polarization conversion function is proposed, which opens the possibility of utilizing different polarizations on top of the OAM based multibeam. The proposed multibeam metasurface antenna based on OAM demultiplexing feeding provides a low-cost solution for independent channels multibeam realization compared with phased arrays and realizes flexible multibeam directions compared with multibeam antennas based on lenses or reflectors. </p>

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Elucidating GO/iron series mediated stable flora and electron transfer under different COD/SO42− ratios

Li,

Cao,

Zhang

et al. 2024

Journal of Water Process Engineering

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Frequency coding all-dielectric metasurface for flexible control of electromagnetic radiation

Cited by 6 publications

References 42 publications

Design of Frequency Multiplexed Coding Metasurface for Dual-Functional Beam Control

Design of Frequency Multiplexed Coding Metasurface for Dual-Functional Beam Control

Multibeam Metasurface Antenna Based on Orbital Angular Momentum Modes Demultiplexing Feeding

Elucidating GO/iron series mediated stable flora and electron transfer under different COD/SO42− ratios

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