Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region
In this paper, a 0.1λ<sub>0</sub>-thick 1-bit coding metasurface is proposed to achieve a polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells. Fourier convolution theory in a digital signal processing system is added to the hologram...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/6/174 |
| _version_ | 1827691934492131328 |
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| author | Shuai Yang Chunsheng Guan Xumin Ding Kuang Zhang Shah Nawaz Burokur Qun Wu |
| author_facet | Shuai Yang Chunsheng Guan Xumin Ding Kuang Zhang Shah Nawaz Burokur Qun Wu |
| author_sort | Shuai Yang |
| collection | DOAJ |
| description | In this paper, a 0.1λ<sub>0</sub>-thick 1-bit coding metasurface is proposed to achieve a polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells. Fourier convolution theory in a digital signal processing system is added to the hologram calculation of the improved weighted Gerchberg–Saxton (GSW) algorithm to achieve control of the scattered pattern in the microwave region. As a proof of concept, a prototype operating at 15 GHz is designed to verify the validity of our proposed approach. The measured performances show good imaging quality under different incident polarizations, providing potential applications in imaging processing and information storage. |
| first_indexed | 2024-03-10T11:11:29Z |
| format | Article |
| id | doaj.art-9f67d2535c0a4b3a813970cc4d95c173 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T11:11:29Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-9f67d2535c0a4b3a813970cc4d95c1732023-11-21T20:44:03ZengMDPI AGPhotonics2304-67322021-05-018617410.3390/photonics8060174Fourier Convolution Operation on Metasurface-Based Hologram in Microwave RegionShuai Yang0Chunsheng Guan1Xumin Ding2Kuang Zhang3Shah Nawaz Burokur4Qun Wu5Department of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, ChinaDepartment of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, ChinaLEME, UPL, Univ Paris Nanterre, F92410 Ville d’Avray, FranceDepartment of Microwave Engineering, Harbin Institute of Technology, Harbin 150001, ChinaIn this paper, a 0.1λ<sub>0</sub>-thick 1-bit coding metasurface is proposed to achieve a polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells. Fourier convolution theory in a digital signal processing system is added to the hologram calculation of the improved weighted Gerchberg–Saxton (GSW) algorithm to achieve control of the scattered pattern in the microwave region. As a proof of concept, a prototype operating at 15 GHz is designed to verify the validity of our proposed approach. The measured performances show good imaging quality under different incident polarizations, providing potential applications in imaging processing and information storage.https://www.mdpi.com/2304-6732/8/6/174metasurfacepolarization-insensitivehologram |
| spellingShingle | Shuai Yang Chunsheng Guan Xumin Ding Kuang Zhang Shah Nawaz Burokur Qun Wu Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region Photonics metasurface polarization-insensitive hologram |
| title | Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region |
| title_full | Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region |
| title_fullStr | Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region |
| title_full_unstemmed | Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region |
| title_short | Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region |
| title_sort | fourier convolution operation on metasurface based hologram in microwave region |
| topic | metasurface polarization-insensitive hologram |
| url | https://www.mdpi.com/2304-6732/8/6/174 |
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