Wideband Terahertz Metasurfaces with Beam Manipulations

Yat Sing To; Quan Wei Lin; Hang Wong

doi:10.23919/EuCAP57121.2023.10133467

Wideband Terahertz Metasurfaces with Beam Manipulations

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

A wideband terahertz (THz) reflective metasurface with reconfigurable beam manipulation operating at 0.1THz is proposed in this paper. A novel 1-bit reconfigurable unit cell is designed and analyzed. Owning to the characteristics of phase change material (PCM), GeTe, the electrical property of the unit cell can be changed to provide 0- and 180-degree phase tuning. To validate the performance of the proposed active element, a coded reflective metasurface is demonstrated by utilizing the geometric phase compensation technique. The proposed metasurface achieves switchable directional beams at 0 and 30 degrees through distinct coded patterns, while maintaining the wide operating bandwidth ranging from 100GHz to 120 GHz with the stable realized gains of 22 dBi. The obtained results indicated the effectiveness of controlling beam angle and directivity and the feasibility of integrating PCM into THz devices. Hence, the proposed THz reflective metasurface shows its potential for future implementation in 6G applications.

Original language	English
Title of host publication	17th European Conference on Antenna and propagation (EuCAP 2023)
Publisher	IEEE
Number of pages	5
ISBN (Electronic)	978-88-31299-07-7
ISBN (Print)	978-1-6654-7541-9
DOIs	https://doi.org/10.23919/EuCAP57121.2023.10133467
Publication status	Published - 2023
Event	17th European Conference on Antennas and Propagation (EuCAP 2023) - Fortezza da Basso, Florence, Italy Duration: 26 Mar 2023 → 31 Mar 2023 https://www.eucap2023.org/

Publication series

Name	European Conference on Antennas and Propagation (EuCAP)
Publisher	IEEE

Conference

Conference	17th European Conference on Antennas and Propagation (EuCAP 2023)
Abbreviated title	EuCAP2023
Country/Territory	Italy
City	Florence
Period	26/03/23 → 31/03/23
Internet address	https://www.eucap2023.org/

Research Keywords

beam manipulation
metasurfaces
phasechange materials
terahertz

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10.23919/EuCAP57121.2023.10133467

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Cite this

@inproceedings{0fc093c732eb49e5803f4b2040abd00b,

title = "Wideband Terahertz Metasurfaces with Beam Manipulations",

abstract = "A wideband terahertz (THz) reflective metasurface with reconfigurable beam manipulation operating at 0.1THz is proposed in this paper. A novel 1-bit reconfigurable unit cell is designed and analyzed. Owning to the characteristics of phase change material (PCM), GeTe, the electrical property of the unit cell can be changed to provide 0- and 180-degree phase tuning. To validate the performance of the proposed active element, a coded reflective metasurface is demonstrated by utilizing the geometric phase compensation technique. The proposed metasurface achieves switchable directional beams at 0 and 30 degrees through distinct coded patterns, while maintaining the wide operating bandwidth ranging from 100GHz to 120 GHz with the stable realized gains of 22 dBi. The obtained results indicated the effectiveness of controlling beam angle and directivity and the feasibility of integrating PCM into THz devices. Hence, the proposed THz reflective metasurface shows its potential for future implementation in 6G applications.",

keywords = "beam manipulation, metasurfaces, phasechange materials, terahertz",

author = "To, {Yat Sing} and Lin, {Quan Wei} and Hang Wong",

year = "2023",

doi = "10.23919/EuCAP57121.2023.10133467",

language = "English",

isbn = "978-1-6654-7541-9",

series = "European Conference on Antennas and Propagation (EuCAP) ",

publisher = "IEEE",

booktitle = "17th European Conference on Antenna and propagation (EuCAP 2023)",

address = "United States",

note = "17th European Conference on Antennas and Propagation (EuCAP 2023), EuCAP2023 ; Conference date: 26-03-2023 Through 31-03-2023",

url = "https://www.eucap2023.org/",

}

Wideband Terahertz Metasurfaces with Beam Manipulations. / To, Yat Sing ; Lin, Quan Wei ; Wong, Hang.
17th European Conference on Antenna and propagation (EuCAP 2023). IEEE, 2023. (European Conference on Antennas and Propagation (EuCAP) ).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Wideband Terahertz Metasurfaces with Beam Manipulations

AU - To, Yat Sing

AU - Lin, Quan Wei

AU - Wong, Hang

PY - 2023

Y1 - 2023

N2 - A wideband terahertz (THz) reflective metasurface with reconfigurable beam manipulation operating at 0.1THz is proposed in this paper. A novel 1-bit reconfigurable unit cell is designed and analyzed. Owning to the characteristics of phase change material (PCM), GeTe, the electrical property of the unit cell can be changed to provide 0- and 180-degree phase tuning. To validate the performance of the proposed active element, a coded reflective metasurface is demonstrated by utilizing the geometric phase compensation technique. The proposed metasurface achieves switchable directional beams at 0 and 30 degrees through distinct coded patterns, while maintaining the wide operating bandwidth ranging from 100GHz to 120 GHz with the stable realized gains of 22 dBi. The obtained results indicated the effectiveness of controlling beam angle and directivity and the feasibility of integrating PCM into THz devices. Hence, the proposed THz reflective metasurface shows its potential for future implementation in 6G applications.

AB - A wideband terahertz (THz) reflective metasurface with reconfigurable beam manipulation operating at 0.1THz is proposed in this paper. A novel 1-bit reconfigurable unit cell is designed and analyzed. Owning to the characteristics of phase change material (PCM), GeTe, the electrical property of the unit cell can be changed to provide 0- and 180-degree phase tuning. To validate the performance of the proposed active element, a coded reflective metasurface is demonstrated by utilizing the geometric phase compensation technique. The proposed metasurface achieves switchable directional beams at 0 and 30 degrees through distinct coded patterns, while maintaining the wide operating bandwidth ranging from 100GHz to 120 GHz with the stable realized gains of 22 dBi. The obtained results indicated the effectiveness of controlling beam angle and directivity and the feasibility of integrating PCM into THz devices. Hence, the proposed THz reflective metasurface shows its potential for future implementation in 6G applications.

KW - beam manipulation

KW - metasurfaces

KW - phasechange materials

KW - terahertz

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85162264938&origin=recordpage

U2 - 10.23919/EuCAP57121.2023.10133467

DO - 10.23919/EuCAP57121.2023.10133467

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 978-1-6654-7541-9

T3 - European Conference on Antennas and Propagation (EuCAP)

BT - 17th European Conference on Antenna and propagation (EuCAP 2023)

PB - IEEE

T2 - 17th European Conference on Antennas and Propagation (EuCAP 2023)

Y2 - 26 March 2023 through 31 March 2023

ER -

Wideband Terahertz Metasurfaces with Beam Manipulations

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17th European Conference on Antennas and Propagation (EuCAP 2023)

Cite this

Wideband Terahertz Metasurfaces with Beam Manipulations

Abstract

Publication series

Conference

Research Keywords

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Other Access Options

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Activities

17th European Conference on Antennas and Propagation (EuCAP 2023)

Cite this