Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure
This article proposes a multiband metamaterial microwave absorber based on a split ring-slot structure. Both simulation and experimental measurements are carried out to obtain the scattering parameters which are used to retrieve the absorption coefficient, relative permittivity, and relative permeab...
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| Format: | Article |
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Wiley Periodicals, Inc.
2018
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| _version_ | 1796864018082693120 |
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| author | Man, Seng Sim Kok, Yeow You Esa, Fahmiruddin Dimon, Mohamad Ngasri Khamis, Nor Hisham |
| author_facet | Man, Seng Sim Kok, Yeow You Esa, Fahmiruddin Dimon, Mohamad Ngasri Khamis, Nor Hisham |
| author_sort | Man, Seng Sim |
| collection | ePrints |
| description | This article proposes a multiband metamaterial microwave absorber based on a split ring-slot structure. Both simulation and experimental measurements are carried out to obtain the scattering parameters which are used to retrieve the absorption coefficient, relative permittivity, and relative permeability. The influences on the absorption produced by geometrical dimensions, incidence angles and polarisation angles are investigated from 1.5 to 18.0 GHz. The results show that the absorber possesses three resonance peaks with absorption greater than 70% measured experimentally at 3.0, 5.8, and 11.0 GHz. The absorption performance is insensitive to the angle of incidence, θ up to 60°.The absorption mechanisms are studied based on the surface current distribution, electric field distribution, and constitutive parameters (μr and εr). Furthermore, a mechanical mean using dielectric material to tune the absorption frequencies (up to 1.0 GHz of tuning range) and enhance the absorption bandwidth (up to 50%) is demonstrated. |
| first_indexed | 2024-03-05T20:35:31Z |
| format | Article |
| id | utm.eprints-85305 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:35:31Z |
| publishDate | 2018 |
| publisher | Wiley Periodicals, Inc. |
| record_format | dspace |
| spelling | utm.eprints-853052020-03-17T08:10:01Z http://eprints.utm.my/85305/ Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure Man, Seng Sim Kok, Yeow You Esa, Fahmiruddin Dimon, Mohamad Ngasri Khamis, Nor Hisham TK Electrical engineering. Electronics Nuclear engineering This article proposes a multiband metamaterial microwave absorber based on a split ring-slot structure. Both simulation and experimental measurements are carried out to obtain the scattering parameters which are used to retrieve the absorption coefficient, relative permittivity, and relative permeability. The influences on the absorption produced by geometrical dimensions, incidence angles and polarisation angles are investigated from 1.5 to 18.0 GHz. The results show that the absorber possesses three resonance peaks with absorption greater than 70% measured experimentally at 3.0, 5.8, and 11.0 GHz. The absorption performance is insensitive to the angle of incidence, θ up to 60°.The absorption mechanisms are studied based on the surface current distribution, electric field distribution, and constitutive parameters (μr and εr). Furthermore, a mechanical mean using dielectric material to tune the absorption frequencies (up to 1.0 GHz of tuning range) and enhance the absorption bandwidth (up to 50%) is demonstrated. Wiley Periodicals, Inc. 2018 Article PeerReviewed Man, Seng Sim and Kok, Yeow You and Esa, Fahmiruddin and Dimon, Mohamad Ngasri and Khamis, Nor Hisham (2018) Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure. International Journal of RF and Microwave Computer-Aided Engineering, 28 (7). ISSN 1096-4290 http://dx.doi.org/10.1002/mmce.21473 DOI:10.1002/mmce.21473 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Man, Seng Sim Kok, Yeow You Esa, Fahmiruddin Dimon, Mohamad Ngasri Khamis, Nor Hisham Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title | Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title_full | Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title_fullStr | Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title_full_unstemmed | Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title_short | Multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| title_sort | multiband metamaterial microwave absorbers using split ring and multiwidth slot structure |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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