Reflective Metasurface With Steered OAM Beams for THz Communications
The abundant spectrum resources and low beam divergence of the terahertz (THz) band, can be combined with the orthogonal propagation property of orbital angular momentum (OAM) beams to multi-fold the capacity of wireless communication systems. Here, a reflective metasurface (RMTS) is utilized to enh...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10038583/ |
| _version_ | 1811163509411545088 |
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| author | Ali Ali Mohsen Khalily Demos Serghiou Rahim Tafazolli |
| author_facet | Ali Ali Mohsen Khalily Demos Serghiou Rahim Tafazolli |
| author_sort | Ali Ali |
| collection | DOAJ |
| description | The abundant spectrum resources and low beam divergence of the terahertz (THz) band, can be combined with the orthogonal propagation property of orbital angular momentum (OAM) beams to multi-fold the capacity of wireless communication systems. Here, a reflective metasurface (RMTS) is utilized to enhance the coverage of the high gain THz OAM beams by enabling the non-line-of-sight (NLoS) component by reshaping the planar wavefront of the incident wave into the helical wavefront, so that it is re-directed towards the direction of interest. This can contribute to alleviating the concern of the small aperture size, since improving the channel capacity can be achieved at the low spectrum blocks of the THz band (larger aperture size). For validation, three <inline-formula> <tex-math notation="LaTeX">$90 \times 90$ </tex-math></inline-formula> mm RMTSs are simulated, fabricated, and tested in the frequency range 90–110 GHz, to re-direct single and dual OAM beams towards the desired location. |
| first_indexed | 2024-04-10T15:07:25Z |
| format | Article |
| id | doaj.art-600df21cb3a24e3eb156749ae52bbe33 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-10T15:07:25Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-600df21cb3a24e3eb156749ae52bbe332023-02-15T00:00:25ZengIEEEIEEE Access2169-35362023-01-0111123941240110.1109/ACCESS.2023.324264710038583Reflective Metasurface With Steered OAM Beams for THz CommunicationsAli Ali0https://orcid.org/0000-0003-2596-0852Mohsen Khalily1https://orcid.org/0000-0003-1861-5428Demos Serghiou2https://orcid.org/0000-0002-7183-8439Rahim Tafazolli3https://orcid.org/0000-0002-6062-8639Home of 5G and 6G Innovation Centres, Institute for Communication Systems (ICS), University of Surrey, Guildford, U.KHome of 5G and 6G Innovation Centres, Institute for Communication Systems (ICS), University of Surrey, Guildford, U.KHome of 5G and 6G Innovation Centres, Institute for Communication Systems (ICS), University of Surrey, Guildford, U.KHome of 5G and 6G Innovation Centres, Institute for Communication Systems (ICS), University of Surrey, Guildford, U.KThe abundant spectrum resources and low beam divergence of the terahertz (THz) band, can be combined with the orthogonal propagation property of orbital angular momentum (OAM) beams to multi-fold the capacity of wireless communication systems. Here, a reflective metasurface (RMTS) is utilized to enhance the coverage of the high gain THz OAM beams by enabling the non-line-of-sight (NLoS) component by reshaping the planar wavefront of the incident wave into the helical wavefront, so that it is re-directed towards the direction of interest. This can contribute to alleviating the concern of the small aperture size, since improving the channel capacity can be achieved at the low spectrum blocks of the THz band (larger aperture size). For validation, three <inline-formula> <tex-math notation="LaTeX">$90 \times 90$ </tex-math></inline-formula> mm RMTSs are simulated, fabricated, and tested in the frequency range 90–110 GHz, to re-direct single and dual OAM beams towards the desired location.https://ieeexplore.ieee.org/document/10038583/Sixth-generation (6G)orbital angular momentum (OAM)reflective metasurface (RMTS)terahertz (THz) |
| spellingShingle | Ali Ali Mohsen Khalily Demos Serghiou Rahim Tafazolli Reflective Metasurface With Steered OAM Beams for THz Communications IEEE Access Sixth-generation (6G) orbital angular momentum (OAM) reflective metasurface (RMTS) terahertz (THz) |
| title | Reflective Metasurface With Steered OAM Beams for THz Communications |
| title_full | Reflective Metasurface With Steered OAM Beams for THz Communications |
| title_fullStr | Reflective Metasurface With Steered OAM Beams for THz Communications |
| title_full_unstemmed | Reflective Metasurface With Steered OAM Beams for THz Communications |
| title_short | Reflective Metasurface With Steered OAM Beams for THz Communications |
| title_sort | reflective metasurface with steered oam beams for thz communications |
| topic | Sixth-generation (6G) orbital angular momentum (OAM) reflective metasurface (RMTS) terahertz (THz) |
| url | https://ieeexplore.ieee.org/document/10038583/ |
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