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Optimized Varactor-Tuned RIS Design for Wide-Angle Perfect Anomalous Reflection
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A4 Artikkeli konferenssijulkaisussa
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en
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4
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2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI), pp. 2416-2419, Digest of the IEEE Antennas and Propagation Society International Symposium
Abstract
Realizing the capability of scanning reflected beams to any arbitrary angle without parasitic scattering has become a technical challenge in designing efficient reconfigurable intelligent surfaces. In this work, we develop a varactor-integrated unit cell employing a capacitive-dominant impedance tuning technique and numerically demonstrate a subwavelength-spaced reflectarray at 13 GHz. The array is composed of passively loaded patch meta-atoms, and it is able to control the beam scan angle by accurately predicting and synthesizing the scattering characteristics, achieving nearly perfect scanning anomalous deflection.
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| openaire: EC/H2020/956256/EU//META WIRELESS
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Vuyyuru, S K R, Asadchy, V S, Kwon, D-H, Tretyakov, S A & Valkonen, R 2025, Optimized Varactor-Tuned RIS Design for Wide-Angle Perfect Anomalous Reflection. in 2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI)., 11266817, Digest of the IEEE Antennas and Propagation Society International Symposium, IEEE, pp. 2416-2419, IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Ottawa, Ontario, Canada, 13/07/2025. https://doi.org/10.1109/AP-S/CNC-USNC-URSI55537.2025.11266817