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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/54977

Title: Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2
Author(s): Rodríguez Prado, Daniel
Arrebola Baena, Manuel
Rodríguez Pino, Marcos
Goussetis, George
Keywords: Broadband reflectarary
polarization purity
ultra high-definition TV
direct broadcast satellite
crosspolar discrimination (XPD)
crosspolar isolation (XPI)
satellite communications
Issue date: 1-Jun-2020
Publisher: IEEE
Publisher version: https://doi.org/10.1109/ACCESS.2020.2999112
Citation: IEEE Access, 8, p. 100712 - 100720 (2020); doi:10.1109/ACCESS.2020.2999112
Format extent: p. 100712-100720
Abstract: A broadband spaceborne reflectarray with high polarization purity is proposed for Ultra High Definition TV (UHDTV) broadcasting for direct-to-home (DTH) applications. The provided bandwidth would allow to offer DTH and other services, while the enhanced cross-polarization performance enables the improvement of a better signal-to-interference-plus-noise ratio. The broadband design procedure is based on a multi-resonant unit cell with several degrees of freedom (DoF) and an improved multi-frequency optimization algorithm. It is divided into several stages and sub-stages in order to facilitate convergence towards a broadband, contoured-beam, high-performance design, including the cross-polarization figure-of-merit in the procedure. A one-meter contoured-beam reflectarray working in a 20% frequency band with high polarization purity is presented as an example. The antenna is designed to fulfil the requirements of a European coverage for DTH UHDTV broadcasting in dual-linear polarization. The cross-polarization figure-of-merit greatly improves after the optimization procedure in the whole band, achieving values better than 37 dB in the coverage region, providing an excellent isolation between polarizations. This procedure can also be extended to other satellite applications in dual-circular polarization.
URI: http://hdl.handle.net/10651/54977
ISSN: 2169-3536
Sponsored: This work was supported in part by the Ministerio de Ciencia, Innovación y Universidades under Project TEC2017-86619-R (ARTEINE), in part by the Ministerio de Economía, Industria y Competitividad under project TEC2016-75103-C2-1-R (MYRADA), in part by the Gobierno del Principado de Asturias/FEDER under Project GRUPIN-IDI/2018/000191, and in part by the Ministerio de Educación, Cultura y Deporte / Programa de Movilidad Salvador de Madariaga under Grant PRX18/00424.
Project id.: MCINN/TEC2017-86619-R
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Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

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