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Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz

Xuekang Liu, Daniel Rodriguez Prado, Claudio Paoloni, Rosa Letizia, Lu Zhang, Benito Sanz-Izquierdo, Steven Gao, Lei Wang

2025 19th European Conference on Antennas and Propagation (EuCAP), Pages: 1 - 5

Swansea University Author: Lu Zhang

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DOI (Published version): 10.23919/eucap63536.2025.10999935

Abstract

This paper presents a novel 2-bit single-feed quad-beam metalens antenna for sub-THz links powered by traveling wave tubes. The metalens surface, consisting of 7692 unit cells with orthogonal slots and vias, allows precise electromagnetic wave manipulation by adjusting slot lengths to control the tr...

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Published in: 2025 19th European Conference on Antennas and Propagation (EuCAP)
ISBN: 979-8-3503-6632-7 978-88-31299-10-7
Published: IEEE 2025
URI: https://cronfa.swan.ac.uk/Record/cronfa68931
first_indexed 2025-02-20T09:51:04Z
last_indexed 2025-08-01T14:30:37Z
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spelling 2025-07-31T17:02:09.1124036 v2 68931 2025-02-20 Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz 1b129a1568c704d141d332da66640dd1 Lu Zhang Lu Zhang true false 2025-02-20 This paper presents a novel 2-bit single-feed quad-beam metalens antenna for sub-THz links powered by traveling wave tubes. The metalens surface, consisting of 7692 unit cells with orthogonal slots and vias, allows precise electromagnetic wave manipulation by adjusting slot lengths to control the transmission phase. Rotating the lower-layer slots in opposite directions creates a stable 180° phase difference, providing over 530° phase coverage. The design is fed by a custom pyramid horn with a WR-10 waveguide interface, optimized for single-unit fabrication. The superposition method was used to achieve the required phase distribution, generating four beams at φ = (0°, 90°, 180°, 270°) and θ = 15°, with a peak gain of 32.28 dBi at 106 GHz and all beams above 30.15 dBi within 102-109.5 GHz. This high-performance metalens offers a promising solution for future 6G high-capacity links. Conference Paper/Proceeding/Abstract 2025 19th European Conference on Antennas and Propagation (EuCAP) 0 1 5 IEEE 979-8-3503-6632-7 978-88-31299-10-7 21 5 2025 2025-05-21 10.23919/eucap63536.2025.10999935 COLLEGE NANME COLLEGE CODE Swansea University This work is partially supported by the Innovate UK SBRI: Future Telecommunications Challenges No. 10102343, the Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/Y003144/2, the Research Grants Council of Hong Kong through Grants GRF 14210623 and AoE/E-101/23-N, and the PoC project (2324-01-11) funded by the University of Hertfordshire. 2025-07-31T17:02:09.1124036 2025-02-20T09:47:16.3058763 Faculty of Science and Engineering School of Mathematics and Computer Science - Computer Science Xuekang Liu 1 Daniel Rodriguez Prado 2 Claudio Paoloni 3 Rosa Letizia 4 Lu Zhang 5 Benito Sanz-Izquierdo 6 Steven Gao 7 Lei Wang 8 68931__33657__6a71c882ee9649f3a7ddc1709e692cb6.pdf 68931.pdf 2025-02-20T09:50:54.5097761 Output 1743189 application/pdf Accepted Manuscript true Author accepted manuscript document released under the terms of a Creative Commons CC-BY licence using the Swansea University Research Publications Policy (rights retention). true eng https://creativecommons.org/licenses/by/4.0/deed.en
title Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
spellingShingle Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
Lu Zhang
title_short Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
title_full Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
title_fullStr Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
title_full_unstemmed Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
title_sort Design of a High-Gain Single-Feed Quad-Beam Metalens With Polarization Conversion at 0.1 THz
author_id_str_mv 1b129a1568c704d141d332da66640dd1
author_id_fullname_str_mv 1b129a1568c704d141d332da66640dd1_***_Lu Zhang
author Lu Zhang
author2 Xuekang Liu
Daniel Rodriguez Prado
Claudio Paoloni
Rosa Letizia
Lu Zhang
Benito Sanz-Izquierdo
Steven Gao
Lei Wang
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container_title 2025 19th European Conference on Antennas and Propagation (EuCAP)
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publishDate 2025
institution Swansea University
isbn 979-8-3503-6632-7
978-88-31299-10-7
doi_str_mv 10.23919/eucap63536.2025.10999935
publisher IEEE
college_str Faculty of Science and Engineering
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hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Mathematics and Computer Science - Computer Science{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Mathematics and Computer Science - Computer Science
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description This paper presents a novel 2-bit single-feed quad-beam metalens antenna for sub-THz links powered by traveling wave tubes. The metalens surface, consisting of 7692 unit cells with orthogonal slots and vias, allows precise electromagnetic wave manipulation by adjusting slot lengths to control the transmission phase. Rotating the lower-layer slots in opposite directions creates a stable 180° phase difference, providing over 530° phase coverage. The design is fed by a custom pyramid horn with a WR-10 waveguide interface, optimized for single-unit fabrication. The superposition method was used to achieve the required phase distribution, generating four beams at φ = (0°, 90°, 180°, 270°) and θ = 15°, with a peak gain of 32.28 dBi at 106 GHz and all beams above 30.15 dBi within 102-109.5 GHz. This high-performance metalens offers a promising solution for future 6G high-capacity links.
published_date 2025-05-21T05:22:09Z
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