Compound Metacurl Antenna With C- and N-Type Metaatoms
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<sub>LH</sub> and the gain for a righ...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9032193/ |
| _version_ | 1818921102038007808 |
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| author | Hisamatsu Nakano Tomoki Abe Amit Mehta Junji Yamauchi |
| author_facet | Hisamatsu Nakano Tomoki Abe Amit Mehta Junji Yamauchi |
| author_sort | Hisamatsu Nakano |
| collection | DOAJ |
| 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<sub>LH</sub> and the gain for a right-handed circularly polarized wave, RHCP gain, has a maximum value at different frequency f<sub>RH</sub>, 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. |
| first_indexed | 2024-12-20T01:32:18Z |
| format | Article |
| id | doaj.art-018b60af8f9b41bfb45ae6de24e151ca |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-20T01:32:18Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-018b60af8f9b41bfb45ae6de24e151ca2022-12-21T19:58:05ZengIEEEIEEE Access2169-35362020-01-018517035171210.1109/ACCESS.2020.29800529032193Compound Metacurl Antenna With C- and N-Type MetaatomsHisamatsu Nakano0https://orcid.org/0000-0002-5559-1771Tomoki Abe1Amit Mehta2Junji Yamauchi3Department of Science and Engineering, Hosei University, Tokyo, JapanDepartment of Science and Engineering, Hosei University, Tokyo, JapanCollege of Engineering, Swansea University, Swansea, U.K.Department of Science and Engineering, Hosei University, Tokyo, JapanA 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<sub>LH</sub> and the gain for a right-handed circularly polarized wave, RHCP gain, has a maximum value at different frequency f<sub>RH</sub>, 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.https://ieeexplore.ieee.org/document/9032193/Metacurl antennasmetaatomscircularly polarized wavegain |
| spellingShingle | Hisamatsu Nakano Tomoki Abe Amit Mehta Junji Yamauchi Compound Metacurl Antenna With C- and N-Type Metaatoms IEEE Access Metacurl antennas metaatoms circularly polarized wave gain |
| title | 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_short | Compound Metacurl Antenna With C- and N-Type Metaatoms |
| title_sort | compound metacurl antenna with c and n type metaatoms |
| topic | Metacurl antennas metaatoms circularly polarized wave gain |
| url | https://ieeexplore.ieee.org/document/9032193/ |
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