Abstract
This paper presents a dual-functional Simultaneous Transmission and Reflection Reconfigurable Intelligent Surface (STAR-RIS) that integrates communication via reflection and computation/sensing via transmission within a single aperture. When an incoming wave impinges on the STAR-RIS, part of it is reflected for communication, while the transmitted portion, shaped by a lens phase profile, performs Fourier transformations in the k−domain enabling computational tasks. A coding metasurface approach is used to create a linear phase gradient in the reflection space and a lens phase profile in the transmission space. This enables tailored beam patterns for reflection and computational tasks, such as Fourier transforms, for accurate angle-of-arrival estimation and sensing applications. To validate the concept, a STAR-RIS with side-by-side reflection and transmission arrays is designed, fabricated, and tested at 26 GHz.
| Original language | English |
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| Title of host publication | Proceedings of the 19th European Conference on Antennas and Propagation, EuCAP 2025 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Number of pages | 5 |
| Publication status | Accepted - 31 Dec 2024 |
| Event | 19th European Conference on Antennas and Propagation 2025 - Stockholm, Sweden Duration: 30 Mar 2025 → 04 Apr 2025 https://eucap.org/ |
Publication series
| Name | EuCAP Proceedings |
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| ISSN (Print) | 2164-3342 |
Conference
| Conference | 19th European Conference on Antennas and Propagation 2025 |
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| Abbreviated title | EuCAP 2025 |
| Country/Territory | Sweden |
| City | Stockholm |
| Period | 30/03/2025 → 04/04/2025 |
| Internet address |
Keywords
- metasurface
- millimiter-wave
- computing
- sensing
- STAR-RIS
- 5G