Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz)
Abstract We designed a mesoscopic dielectric cuboid antenna connected to a flangeless WR-3.4 open-ended waveguide, and the antenna characteristics at 300 GHz were examined through simulations and experiments. Simulations confirmed that the flangeless design eliminated the flange-induced ripples in t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-42640-x |
| _version_ | 1827711318828777472 |
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| author | Towa Ohno Ayumu Yabuki Keizo Inagaki Atsushi Kanno Junichi Nakajima Norihiko Sekine Shintaro Hisatake |
| author_facet | Towa Ohno Ayumu Yabuki Keizo Inagaki Atsushi Kanno Junichi Nakajima Norihiko Sekine Shintaro Hisatake |
| author_sort | Towa Ohno |
| collection | DOAJ |
| description | Abstract We designed a mesoscopic dielectric cuboid antenna connected to a flangeless WR-3.4 open-ended waveguide, and the antenna characteristics at 300 GHz were examined through simulations and experiments. Simulations confirmed that the flangeless design eliminated the flange-induced ripples in the radiation pattern, whose shape varied with frequency, and that the antenna operated in the full bandwidth of the WR-3.4 waveguide (220–330 GHz). Prototypes were then fabricated based on the simulation findings. A prototype with an antenna aperture area of 1.5 mm $$\times$$ × 1.5 mm and an antenna length of 2.35 mm exhibited an antenna gain of 17.2 dBi at 300 GHz and a voltage standing wave ratio of less than 1.5 throughout the WR-3.4 waveguide bandwidth. The level of the side lobes at about $$\pm 30$$ ± 30 degrees in the E-plane pattern was approximately $$-10$$ - 10 dB that of the main lobe. Therefore, the proposed antenna, connected to a flangeless waveguide, is a promising antenna for use in future short-range high-speed terahertz wireless applications such as kiosk downloads and board-to-board communication. |
| first_indexed | 2024-03-10T17:52:58Z |
| format | Article |
| id | doaj.art-86624a8012324ed89e42d17f858d4553 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:52:58Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-86624a8012324ed89e42d17f858d45532023-11-20T09:18:08ZengNature PortfolioScientific Reports2045-23222023-09-0113111110.1038/s41598-023-42640-xDesign and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz)Towa Ohno0Ayumu Yabuki1Keizo Inagaki2Atsushi Kanno3Junichi Nakajima4Norihiko Sekine5Shintaro Hisatake6Gifu UniversitySoftBank Corp.National Institute of Information and Communications TechnologyNagoya Institute of TechnologySoftBank Corp.National Institute of Information and Communications TechnologyGifu UniversityAbstract We designed a mesoscopic dielectric cuboid antenna connected to a flangeless WR-3.4 open-ended waveguide, and the antenna characteristics at 300 GHz were examined through simulations and experiments. Simulations confirmed that the flangeless design eliminated the flange-induced ripples in the radiation pattern, whose shape varied with frequency, and that the antenna operated in the full bandwidth of the WR-3.4 waveguide (220–330 GHz). Prototypes were then fabricated based on the simulation findings. A prototype with an antenna aperture area of 1.5 mm $$\times$$ × 1.5 mm and an antenna length of 2.35 mm exhibited an antenna gain of 17.2 dBi at 300 GHz and a voltage standing wave ratio of less than 1.5 throughout the WR-3.4 waveguide bandwidth. The level of the side lobes at about $$\pm 30$$ ± 30 degrees in the E-plane pattern was approximately $$-10$$ - 10 dB that of the main lobe. Therefore, the proposed antenna, connected to a flangeless waveguide, is a promising antenna for use in future short-range high-speed terahertz wireless applications such as kiosk downloads and board-to-board communication.https://doi.org/10.1038/s41598-023-42640-x |
| spellingShingle | Towa Ohno Ayumu Yabuki Keizo Inagaki Atsushi Kanno Junichi Nakajima Norihiko Sekine Shintaro Hisatake Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) Scientific Reports |
| title | Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) |
| title_full | Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) |
| title_fullStr | Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) |
| title_full_unstemmed | Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) |
| title_short | Design and characterization of mesoscopic dielectric cuboid antenna for operation in WR-3.4 waveguide bandwidth (220–330 GHz) |
| title_sort | design and characterization of mesoscopic dielectric cuboid antenna for operation in wr 3 4 waveguide bandwidth 220 330 ghz |
| url | https://doi.org/10.1038/s41598-023-42640-x |
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