Examinando por Autor "Cordente, Felipe"

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Dual-Band and Dual-Polarized Reflectarray for Intelligent Reflecting Surface Applications in Millimeter-Wave 5G
(Institute of Electrical and Electronics Engineers, 2023-03) Cordente, Felipe; Martinez-de-Rioja, Eduardo; Arboleya, Ana; Encinar, José Antonio
In this work, a dual-band and dual-polarized reflectarray is proposed for non-tunable Intelligent Reflecting Surfaces (IRS) in millimeter-wave 5G. The reflectarray unit-cell has a dual-layer configuration, where the printed elements on each layer are designed to provide the required phase shifts at a different operating frequency (lower layer elements for 28 GHz and upper layer elements for 39 GHz). A 20 cm x 20 cm reflectarray panel has been designed to produce a collimated beam in dual-linear polarization at the 28 GHz and 39 GHz bands simultaneously. The proposed concept can be used to design passive IRS panels (without tunability) with dual-band operation, which can be used to improve coverage of dead zones or avoid obstacles that block direct communication links in millimeter-wave 5G networks.
Reflectarray de doble banda y polarización dual para redes 5G de ondas milimétricas
(Comité Organizador y Científico XXXVIII Simposio Nacional de la Unión Científica Internacional de Radio, URSI23. Universidad de Extremadura, 2023-09) Cordente, Felipe; Martinez-de-Rioja, Eduardo; Arboleya, Ana; Encinar, José Antonio
In this contribution, a dual-band reflectarray that operates at 28 and 39 GHz is proposed for millimeter-wave 5G applications. The unit-cell of the reflectarray is based on a dual-layer configuration, where the printed elements on each layer are used to control the phase shift introduced at each operating frequency. A 20 cm x 20 cm reflectarray is designed to generate a collimated beam in dual-linear polarization (Horizontal and Vertical) simultaneously at 28 and 39 GHz. The proposed technology can be applied to design passive intelligent reflecting surfaces (IRS) with dual-band operation, which can be used in millimeter-wave 5G networks to improve the coverage of dead zones or avoid the obstacles that block direct point-to-point communications links.