Compound Metacurl Antenna With C- and N-Type Metaatoms

Nakano, Hisamatsu; Abe, Tomoki; Mehta, Amit; Yamauchi, Junji

doi:10.1109/access.2020.2980052

Journal article 639 views 134 downloads

Compound Metacurl Antenna With C- and N-Type Metaatoms

Hisamatsu Nakano, Tomoki Abe, Amit Mehta

, Junji Yamauchi

IEEE Access, Volume: 8, Pages: 51703 - 51712

Swansea University Author: Amit Mehta

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DOI (Published version): 10.1109/access.2020.2980052

Abstract

A metacurl antenna made of C-type metaatoms (forming a C-type metaline), called the C-metacurl antenna, is investigated. The investigation reveals that the gain for a left-handed circularly polarized wave, LHCP gain, has a maximum value at frequency $f_{\mathrm {LH}}$ and the gain for a right-handed...

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Published in:	IEEE Access
ISSN:	2169-3536
Published:	Institute of Electrical and Electronics Engineers (IEEE) 2020
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URI:	https://cronfa.swan.ac.uk/Record/cronfa53901
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first_indexed	2020-04-06T14:12:00Z
last_indexed	2020-10-23T03:06:18Z
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spelling	2020-10-22T14:27:07.6294620 v2 53901 2020-04-06 Compound Metacurl Antenna With C- and N-Type Metaatoms 8a1e5679707cf437cbfd17b72514b8a5 0000-0001-8073-2436 Amit Mehta Amit Mehta true false 2020-04-06 EEEG A metacurl antenna made of C-type metaatoms (forming a C-type metaline), called the C-metacurl antenna, is investigated. The investigation reveals that the gain for a left-handed circularly polarized wave, LHCP gain, has a maximum value at frequency $f_{\mathrm {LH}}$ and the gain for a right-handed circularly polarized wave, RHCP gain, has a maximum value at different frequency $f_{\mathrm {RH}}$ , where the maximum LHCP gain is smaller than the maximum RHCP gain. Subsequently, a different metaatom that forms the unit cell of an N-type metaline, called the N-type metaatom, is investigated. It is found that the radiation from the N-type metaatom is LHCP. This infers that the maximum LHCP gain for the C-metacurl antenna will increase when some C-type metaatoms are replaced by N-type metaatoms. Based on this inference, a novel metacurl antenna composed of C-type metaatoms and N-type metaatoms, called the compound metacurl antenna, is analyzed. The analysis reveals that replacement with an appropriate number of N-type metaatoms increases the maximum LHCP gain, resulting in a balancing of LHCP gain and RHCP gain. The antenna characteristics under such a gain-balanced situation, including the radiation pattern, axial ratio, and input characteristic (VSWR), are also discussed. Journal Article IEEE Access 8 51703 51712 Institute of Electrical and Electronics Engineers (IEEE) 2169-3536 11 3 2020 2020-03-11 10.1109/access.2020.2980052 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2020-10-22T14:27:07.6294620 2020-04-06T09:44:55.5421217 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Hisamatsu Nakano 1 Tomoki Abe 2 Amit Mehta 0000-0001-8073-2436 3 Junji Yamauchi 4 53901__17012__833afb6c783c427d9cc2f3340a24157a.pdf 53901.pdf 2020-04-06T09:46:41.0636399 Output 1827408 application/pdf Version of Record true This work is licensed under a Creative Commons Attribution 4.0 License. true eng https://creativecommons.org/licenses/by/4.0/
title	Compound Metacurl Antenna With C- and N-Type Metaatoms
spellingShingle	Compound Metacurl Antenna With C- and N-Type Metaatoms Amit Mehta
title_short	Compound Metacurl Antenna With C- and N-Type Metaatoms
title_full	Compound Metacurl Antenna With C- and N-Type Metaatoms
title_fullStr	Compound Metacurl Antenna With C- and N-Type Metaatoms
title_full_unstemmed	Compound Metacurl Antenna With C- and N-Type Metaatoms
title_sort	Compound Metacurl Antenna With C- and N-Type Metaatoms
author_id_str_mv	8a1e5679707cf437cbfd17b72514b8a5
author_id_fullname_str_mv	8a1e5679707cf437cbfd17b72514b8a5_***_Amit Mehta
author	Amit Mehta
author2	Hisamatsu Nakano Tomoki Abe Amit Mehta Junji Yamauchi
format	Journal article
container_title	IEEE Access
container_volume	8
container_start_page	51703
publishDate	2020
institution	Swansea University
issn	2169-3536
doi_str_mv	10.1109/access.2020.2980052
publisher	Institute of Electrical and Electronics Engineers (IEEE)
college_str	Faculty of Science and Engineering
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hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str	1
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description	A metacurl antenna made of C-type metaatoms (forming a C-type metaline), called the C-metacurl antenna, is investigated. The investigation reveals that the gain for a left-handed circularly polarized wave, LHCP gain, has a maximum value at frequency $f_{\mathrm {LH}}$ and the gain for a right-handed circularly polarized wave, RHCP gain, has a maximum value at different frequency $f_{\mathrm {RH}}$ , where the maximum LHCP gain is smaller than the maximum RHCP gain. Subsequently, a different metaatom that forms the unit cell of an N-type metaline, called the N-type metaatom, is investigated. It is found that the radiation from the N-type metaatom is LHCP. This infers that the maximum LHCP gain for the C-metacurl antenna will increase when some C-type metaatoms are replaced by N-type metaatoms. Based on this inference, a novel metacurl antenna composed of C-type metaatoms and N-type metaatoms, called the compound metacurl antenna, is analyzed. The analysis reveals that replacement with an appropriate number of N-type metaatoms increases the maximum LHCP gain, resulting in a balancing of LHCP gain and RHCP gain. The antenna characteristics under such a gain-balanced situation, including the radiation pattern, axial ratio, and input characteristic (VSWR), are also discussed.
published_date	2020-03-11T04:07:08Z
_version_	1763753515412357120
score	11.012678

Compound Metacurl Antenna With C- and N-Type Metaatoms

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