2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band

2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band

A $2\times2$ lens array provides a half reduction of antenna height compared to the twice-diameter single-feed lens antenna with an almost similar gain performance due to the same aperture size. However, it generally suffers from a non-uniform amplitude distribution of each lens, which degrades the...

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Bibliographic Details
Published in:IEEE Open Journal of Antennas and Propagation
Main Author: Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
Format: Article
Language:English
Published: Institute of Electrical and Electronics Engineers Inc. 2023
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174842426&doi=10.1109%2fOJAP.2023.3325055&partnerID=40&md5=be829d5c6ffd2442741c86b698727b93
id 2-s2.0-85174842426
spelling 2-s2.0-85174842426
Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
2023
IEEE Open Journal of Antennas and Propagation
4

10.1109/OJAP.2023.3325055
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174842426&doi=10.1109%2fOJAP.2023.3325055&partnerID=40&md5=be829d5c6ffd2442741c86b698727b93
A $2\times2$ lens array provides a half reduction of antenna height compared to the twice-diameter single-feed lens antenna with an almost similar gain performance due to the same aperture size. However, it generally suffers from a non-uniform amplitude distribution of each lens, which degrades the overall lens antenna performance. This study proposes a $2\times2$ lens array antenna composed of square-bottom lenses with a concave-convex lens shaping design to improve the uniformity and aperture efficiency. The measured results of the proposed $2\times2$ square-bottom concave-convex lens array antenna with a lens height of 9.74 mm achieved a boresight gain of 34.9 dBi, and the lowest sidelobe level observed was greater than -12 dB in the 300-GHz band. © 2020 IEEE.
Institute of Electrical and Electronics Engineers Inc.
26376431
English
Article
author Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
spellingShingle Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
author_facet Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
author_sort Baharom B.; Sugimoto Y.; Rohani B.; Sakakibara K.; Kikuma N.; Yamada Y.; Rahman N.H.A.
title 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
title_short 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
title_full 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
title_fullStr 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
title_full_unstemmed 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
title_sort 2 × 2 Lens Array Antenna Using Square-Bottom Concave-Convex Lens in 300-GHz Band
publishDate 2023
container_title IEEE Open Journal of Antennas and Propagation
container_volume 4
container_issue
doi_str_mv 10.1109/OJAP.2023.3325055
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174842426&doi=10.1109%2fOJAP.2023.3325055&partnerID=40&md5=be829d5c6ffd2442741c86b698727b93
description A $2\times2$ lens array provides a half reduction of antenna height compared to the twice-diameter single-feed lens antenna with an almost similar gain performance due to the same aperture size. However, it generally suffers from a non-uniform amplitude distribution of each lens, which degrades the overall lens antenna performance. This study proposes a $2\times2$ lens array antenna composed of square-bottom lenses with a concave-convex lens shaping design to improve the uniformity and aperture efficiency. The measured results of the proposed $2\times2$ square-bottom concave-convex lens array antenna with a lens height of 9.74 mm achieved a boresight gain of 34.9 dBi, and the lowest sidelobe level observed was greater than -12 dB in the 300-GHz band. © 2020 IEEE.
publisher Institute of Electrical and Electronics Engineers Inc.
issn 26376431
language English
format Article
accesstype
record_format scopus
collection Scopus
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