Projects per year
Abstract
Active development is taking place in reconfigurable and static metasurfaces that control and optimize reflections. However, existing designs typically only optimize reflections from the metasurface panels, neglecting interference with reflections originating from supporting walls and nearby objects. In this study, we investigate how engineering the metasurface properties can modify the total scattering pattern, enabling the modification and optimization of reflections from significantly larger illuminated areas than the metasurface panel. To accomplish this, a general design approach is developed to create periodical metasurfaces with controlled reflection phase and amplitude for all propagating Floquet harmonics. By combining metasurface reflections with those from the surrounding walls, the total scattering can be manipulated. The study demonstrates how appropriately designed metasurfaces can modify reflections from surrounding walls, enhancing the functionalities of metasurfaces. These findings are intended to facilitate advancements in engineering and optimizing wave propagation channels, particularly for millimeter-wave communications.
Original language | English |
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Pages (from-to) | 2992-2997 |
Number of pages | 6 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 72 |
Issue number | 3 |
Early online date | 2024 |
DOIs | |
Publication status | Published - 1 Mar 2024 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Electromagnetic diffraction
- Harmonic analysis
- Impedance
- Metasurfaces
- Millimeter wave propagation
- Optimization
- Reflection
- Scattering
- Substrates
- Surface impedance
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-: Academy of Finland - National Science Foundation Partnership
Tretiakov, S. (Principal investigator), Kosulnikov, S. (Project Member), Al Mahmud, S. (Project Member), Ptitcyn, G. (Project Member) & Mostafa, M. (Project Member)
01/01/2022 → 31/12/2024
Project: Academy of Finland: Other research funding
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ARIADNE: Artificial Intelligence Aided D-band Network for 5G Long Term Evolution
Tretiakov, S. (Principal investigator), Tcvetkova, S. (Project Member) & Kosulnikov, S. (Project Member)
01/11/2019 → 31/07/2023
Project: EU: Framework programmes funding
Equipment
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Aalto Electronics-ICT
Ryynänen, J. (Manager)
Department of Electronics and NanoengineeringFacility/equipment: Facility