An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz
This work presents the characterization of Lithium molybdenum oxide (Li<sub>2</sub>MoO<sub>4</sub>, LMO) hollow glass microspheres (HGMS) ceramic composite from 0.1 to 1 THz and an associated bullet shaped lens used with WR3.4 for 220-330 GHz band. LMO-HGMS had permittivity o...
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2021
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oai:doaj.org-article:0819da5a6b764fbfb63d813d19be5d3f2021-12-02T00:00:38ZAn Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz2169-353610.1109/ACCESS.2021.3130319https://doaj.org/article/0819da5a6b764fbfb63d813d19be5d3f2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9625951/https://doaj.org/toc/2169-3536This work presents the characterization of Lithium molybdenum oxide (Li<sub>2</sub>MoO<sub>4</sub>, LMO) hollow glass microspheres (HGMS) ceramic composite from 0.1 to 1 THz and an associated bullet shaped lens used with WR3.4 for 220-330 GHz band. LMO-HGMS had permittivity of 1.18 and loss tangent of 0.003 at 300 GHz. The calculated reflectivity for the LMO-HGMS-air interface was 0.2 %. The fabricated bullet lens weighed 5 grams and was characterized using an experimental measurement system. The lens was measured to have a focus spot of diameter 1.5 mm. Simulated results showed the lens to operate with a WR3.4 waveguide having a gain of 27.5 dBi with a narrow beam width of 1-degree, 18 dB sidelobe level (SLL), 40% Fractional Beam Width (FBW), and −13 dB S<sub>11</sub> over the broadband 220-330 GHz.Mikko KokkonenAli GhavidelNuutti TervoMikko NeloSami MyllymakiHeli JantunenIEEEarticle6Gcomposite materialsdielectricslens measurementlow permittivity materialsterahertz materialsElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 156592-156598 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
6G composite materials dielectrics lens measurement low permittivity materials terahertz materials Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
| spellingShingle |
6G composite materials dielectrics lens measurement low permittivity materials terahertz materials Electrical engineering. Electronics. Nuclear engineering TK1-9971 Mikko Kokkonen Ali Ghavidel Nuutti Tervo Mikko Nelo Sami Myllymaki Heli Jantunen An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| description |
This work presents the characterization of Lithium molybdenum oxide (Li<sub>2</sub>MoO<sub>4</sub>, LMO) hollow glass microspheres (HGMS) ceramic composite from 0.1 to 1 THz and an associated bullet shaped lens used with WR3.4 for 220-330 GHz band. LMO-HGMS had permittivity of 1.18 and loss tangent of 0.003 at 300 GHz. The calculated reflectivity for the LMO-HGMS-air interface was 0.2 %. The fabricated bullet lens weighed 5 grams and was characterized using an experimental measurement system. The lens was measured to have a focus spot of diameter 1.5 mm. Simulated results showed the lens to operate with a WR3.4 waveguide having a gain of 27.5 dBi with a narrow beam width of 1-degree, 18 dB sidelobe level (SLL), 40% Fractional Beam Width (FBW), and −13 dB S<sub>11</sub> over the broadband 220-330 GHz. |
| format |
article |
| author |
Mikko Kokkonen Ali Ghavidel Nuutti Tervo Mikko Nelo Sami Myllymaki Heli Jantunen |
| author_facet |
Mikko Kokkonen Ali Ghavidel Nuutti Tervo Mikko Nelo Sami Myllymaki Heli Jantunen |
| author_sort |
Mikko Kokkonen |
| title |
An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| title_short |
An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| title_full |
An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| title_fullStr |
An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| title_full_unstemmed |
An Ultralight High-Directivity Ceramic Composite Lens Antenna for 220–330 GHz |
| title_sort |
ultralight high-directivity ceramic composite lens antenna for 220–330 ghz |
| publisher |
IEEE |
| publishDate |
2021 |
| url |
https://doaj.org/article/0819da5a6b764fbfb63d813d19be5d3f |
| work_keys_str_mv |
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| _version_ |
1718403965274554368 |