Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications
In this paper, a third-order band-pass frequency selective surface (FSS) filter is proposed for terahertz applications. The presented FSS filter is designed based on miniaturized unit cells and a fractional bandwidth of 72% around 0.775 THz is achieved. In addition, a high transmission magnitude is...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-06-01
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| Series: | Engineering Science and Technology, an International Journal |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098618319499 |
| _version_ | 1818543180079955968 |
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| author | Hamed Mohammadi Nemat-Abad Ehsan Zareian-Jahromi Raheleh Basiri |
| author_facet | Hamed Mohammadi Nemat-Abad Ehsan Zareian-Jahromi Raheleh Basiri |
| author_sort | Hamed Mohammadi Nemat-Abad |
| collection | DOAJ |
| description | In this paper, a third-order band-pass frequency selective surface (FSS) filter is proposed for terahertz applications. The presented FSS filter is designed based on miniaturized unit cells and a fractional bandwidth of 72% around 0.775 THz is achieved. In addition, a high transmission magnitude is obtained with an acceptable flatness in comparison to previous reports. In order to verify the numerical results, an equivalent circuit model of the proposed spatial filter is introduced considering both normal and oblique incident angles. The sensitivity of the filter with respect to the incident wave angle is investigated in the range of 0–60° whereas the obtained performance is acceptable for various incident angles in the mentioned range. Moreover, the effects of altering different geometrical parameters are studied and justified based on the extracted equivalent circuit model. Keywords: Equivalent circuit model, Frequency selective surface, Metamaterial, Miniaturized elements, Terahertz filter |
| first_indexed | 2024-12-11T22:31:57Z |
| format | Article |
| id | doaj.art-69efeeab80ed45d09a6144d7b10623a0 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-11T22:31:57Z |
| publishDate | 2019-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-69efeeab80ed45d09a6144d7b10623a02022-12-22T00:48:05ZengElsevierEngineering Science and Technology, an International Journal2215-09862019-06-01223862868Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applicationsHamed Mohammadi Nemat-Abad0Ehsan Zareian-Jahromi1Raheleh Basiri2Corresponding authors.; Department of Electrical Engineering, Shiraz University of Technology, Shiraz, IranCorresponding authors.; Department of Electrical Engineering, Shiraz University of Technology, Shiraz, IranDepartment of Electrical Engineering, Shiraz University of Technology, Shiraz, IranIn this paper, a third-order band-pass frequency selective surface (FSS) filter is proposed for terahertz applications. The presented FSS filter is designed based on miniaturized unit cells and a fractional bandwidth of 72% around 0.775 THz is achieved. In addition, a high transmission magnitude is obtained with an acceptable flatness in comparison to previous reports. In order to verify the numerical results, an equivalent circuit model of the proposed spatial filter is introduced considering both normal and oblique incident angles. The sensitivity of the filter with respect to the incident wave angle is investigated in the range of 0–60° whereas the obtained performance is acceptable for various incident angles in the mentioned range. Moreover, the effects of altering different geometrical parameters are studied and justified based on the extracted equivalent circuit model. Keywords: Equivalent circuit model, Frequency selective surface, Metamaterial, Miniaturized elements, Terahertz filterhttp://www.sciencedirect.com/science/article/pii/S2215098618319499 |
| spellingShingle | Hamed Mohammadi Nemat-Abad Ehsan Zareian-Jahromi Raheleh Basiri Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications Engineering Science and Technology, an International Journal |
| title | Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications |
| title_full | Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications |
| title_fullStr | Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications |
| title_full_unstemmed | Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications |
| title_short | Design and equivalent circuit model extraction of a third-order band-pass frequency selective surface filter for terahertz applications |
| title_sort | design and equivalent circuit model extraction of a third order band pass frequency selective surface filter for terahertz applications |
| url | http://www.sciencedirect.com/science/article/pii/S2215098618319499 |
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