Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication
In this paper, we propose a reconfigurable intelligent surface (RIS) that can dynamically switch the transmission and reflection phase of incident electromagnetic waves in real time to realize the dual-beam or quad-beam and convert the polarization of the transmitted beam. Such surfaces can redirect...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/20/8561 |
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| author | Khushboo Singh Mondeep Saikia Karthick Thiyagarajan Dushmantha Thalakotuna Karu Esselle Sarath Kodagoda |
| author_facet | Khushboo Singh Mondeep Saikia Karthick Thiyagarajan Dushmantha Thalakotuna Karu Esselle Sarath Kodagoda |
| author_sort | Khushboo Singh |
| collection | DOAJ |
| description | In this paper, we propose a reconfigurable intelligent surface (RIS) that can dynamically switch the transmission and reflection phase of incident electromagnetic waves in real time to realize the dual-beam or quad-beam and convert the polarization of the transmitted beam. Such surfaces can redirect a wireless signal at will to establish robust connectivity when the designated line-of-sight channel is disturbed, thereby enhancing the performance of wireless communication systems by creating an intelligent radio environment. When integrated with a sensing element, they are integral to performing joint detection and communication functions in future wireless sensor networks. In this work, we first analyze the scattering performance of a reconfigurable unit element and then design a RIS. The dynamic field scattering manipulation capability of the RIS is validated by full-wave electromagnetic simulations to realize six different functions. The scattering characteristics of the proposed unit element, which incorporates two <i>p-i-n</i> diodes have been substantiated through practical implementation. This involved the construction of a simple prototype and the subsequent examination of its scattering properties via the free-space measurement method. The obtained transmission and reflection coefficients from the measurements are in agreement with the anticipated outcomes from simulations. |
| first_indexed | 2024-03-10T20:54:37Z |
| format | Article |
| id | doaj.art-57ea1a1604634f89b6ccf6053b56e34b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T20:54:37Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-57ea1a1604634f89b6ccf6053b56e34b2023-11-19T18:04:47ZengMDPI AGSensors1424-82202023-10-012320856110.3390/s23208561Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and CommunicationKhushboo Singh0Mondeep Saikia1Karthick Thiyagarajan2Dushmantha Thalakotuna3Karu Esselle4Sarath Kodagoda5School of Electrical and Data Engineering, University of Technology Sydney, Sydney, NSW 2007, AustraliaDepartment of Electrical Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, Uttar Pradesh, IndiaUTS Robotics Institute, University of Technology Sydney, Sydney, NSW 2007, AustraliaSchool of Electrical and Data Engineering, University of Technology Sydney, Sydney, NSW 2007, AustraliaSchool of Electrical and Data Engineering, University of Technology Sydney, Sydney, NSW 2007, AustraliaUTS Robotics Institute, University of Technology Sydney, Sydney, NSW 2007, AustraliaIn this paper, we propose a reconfigurable intelligent surface (RIS) that can dynamically switch the transmission and reflection phase of incident electromagnetic waves in real time to realize the dual-beam or quad-beam and convert the polarization of the transmitted beam. Such surfaces can redirect a wireless signal at will to establish robust connectivity when the designated line-of-sight channel is disturbed, thereby enhancing the performance of wireless communication systems by creating an intelligent radio environment. When integrated with a sensing element, they are integral to performing joint detection and communication functions in future wireless sensor networks. In this work, we first analyze the scattering performance of a reconfigurable unit element and then design a RIS. The dynamic field scattering manipulation capability of the RIS is validated by full-wave electromagnetic simulations to realize six different functions. The scattering characteristics of the proposed unit element, which incorporates two <i>p-i-n</i> diodes have been substantiated through practical implementation. This involved the construction of a simple prototype and the subsequent examination of its scattering properties via the free-space measurement method. The obtained transmission and reflection coefficients from the measurements are in agreement with the anticipated outcomes from simulations.https://www.mdpi.com/1424-8220/23/20/8561metasurfacemetamaterialsreconfigurable intelligent surfacesintelligent reflecting surfaceswireless sensorslocalization |
| spellingShingle | Khushboo Singh Mondeep Saikia Karthick Thiyagarajan Dushmantha Thalakotuna Karu Esselle Sarath Kodagoda Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication Sensors metasurface metamaterials reconfigurable intelligent surfaces intelligent reflecting surfaces wireless sensors localization |
| title | Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication |
| title_full | Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication |
| title_fullStr | Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication |
| title_full_unstemmed | Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication |
| title_short | Multi-Functional Reconfigurable Intelligent Surfaces for Enhanced Sensing and Communication |
| title_sort | multi functional reconfigurable intelligent surfaces for enhanced sensing and communication |
| topic | metasurface metamaterials reconfigurable intelligent surfaces intelligent reflecting surfaces wireless sensors localization |
| url | https://www.mdpi.com/1424-8220/23/20/8561 |
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