Enhancement of backscattering by a conducting cylinder coated with gradient metasurface
This paper proposes a highly effective method for enhancing the backscattering by a conducting cylinder that is coated with a gradient metasurface. The employed metasurface exhibits a phase gradient continuously varying along the circumferential direction of the cylinder so that in-phase retroreflec...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/83624 http://hdl.handle.net/10220/42690 |
| _version_ | 1826114219411505152 |
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| author | Shang, Yuping Shen, Zhongxiang Feng, Keming |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Shang, Yuping Shen, Zhongxiang Feng, Keming |
| author_sort | Shang, Yuping |
| collection | NTU |
| description | This paper proposes a highly effective method for enhancing the backscattering by a conducting cylinder that is coated with a gradient metasurface. The employed metasurface exhibits a phase gradient continuously varying along the circumferential direction of the cylinder so that in-phase retroreflection can be produced to enhance the backscattering. It is demonstrated that the cylinder coated with the proposed gradient metasurface can generate backscattering very close to that from a conducting plate with the same dimensions as the cylinder's cross-section perpendicular to the incident plane wave. Compared with a bare conducting cylinder, the backscattering is significantly enhanced by the gradient metasurface made of conducting strips printed on a grounded dielectric substrate. Effects of cell numbers along the cylinder axis, incident angle, and polarization of the incoming electromagnetic wave on the backscattering enhancement are examined and discussed. A good agreement between simulated and measured backscattering results validates the observations. |
| first_indexed | 2024-10-01T03:35:33Z |
| format | Journal Article |
| id | ntu-10356/83624 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:35:33Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/836242020-03-07T13:57:27Z Enhancement of backscattering by a conducting cylinder coated with gradient metasurface Shang, Yuping Shen, Zhongxiang Feng, Keming School of Electrical and Electronic Engineering Electric fields Backscattering This paper proposes a highly effective method for enhancing the backscattering by a conducting cylinder that is coated with a gradient metasurface. The employed metasurface exhibits a phase gradient continuously varying along the circumferential direction of the cylinder so that in-phase retroreflection can be produced to enhance the backscattering. It is demonstrated that the cylinder coated with the proposed gradient metasurface can generate backscattering very close to that from a conducting plate with the same dimensions as the cylinder's cross-section perpendicular to the incident plane wave. Compared with a bare conducting cylinder, the backscattering is significantly enhanced by the gradient metasurface made of conducting strips printed on a grounded dielectric substrate. Effects of cell numbers along the cylinder axis, incident angle, and polarization of the incoming electromagnetic wave on the backscattering enhancement are examined and discussed. A good agreement between simulated and measured backscattering results validates the observations. Published version 2017-06-14T03:06:50Z 2019-12-06T15:26:59Z 2017-06-14T03:06:50Z 2019-12-06T15:26:59Z 2016 Journal Article Shang, Y., Shen, Z., & Feng, K. (2016). Enhancement of backscattering by a conducting cylinder coated with gradient metasurface. Journal of Applied Physics, 120(4), 045109-. 0021-8979 https://hdl.handle.net/10356/83624 http://hdl.handle.net/10220/42690 10.1063/1.4959986 en Journal of Applied Physics © 2016 American Institute of Physics (AIP). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4959986]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 7 p. application/pdf |
| spellingShingle | Electric fields Backscattering Shang, Yuping Shen, Zhongxiang Feng, Keming Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title | Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title_full | Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title_fullStr | Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title_full_unstemmed | Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title_short | Enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| title_sort | enhancement of backscattering by a conducting cylinder coated with gradient metasurface |
| topic | Electric fields Backscattering |
| url | https://hdl.handle.net/10356/83624 http://hdl.handle.net/10220/42690 |
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