Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2
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 imp...
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doaj-be744aa19bd5429c805046abbd7dee392021-03-30T01:39:07ZengIEEEIEEE Access2169-35362020-01-01810071210072010.1109/ACCESS.2020.29991129104957Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2Daniel R. Prado0https://orcid.org/0000-0002-2774-7572Manuel Arrebola1https://orcid.org/0000-0002-2487-121XMarcos R. Pino2https://orcid.org/0000-0001-7468-3084George Goussetis3https://orcid.org/0000-0002-8042-2347Department of Electrical Engineering, Universidad de Oviedo, Gijón, SpainDepartment of Electrical Engineering, Universidad de Oviedo, Gijón, SpainDepartment of Electrical Engineering, Universidad de Oviedo, Gijón, SpainInstitute of Sensors, Signals and Systems, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, U.K.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.https://ieeexplore.ieee.org/document/9104957/Broadband reflectarraypolarization purityultra high-definition TVcontoured-beamdirect broadcast satellitecrosspolar discrimination (XPD) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniel R. Prado Manuel Arrebola Marcos R. Pino George Goussetis |
spellingShingle |
Daniel R. Prado Manuel Arrebola Marcos R. Pino George Goussetis Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 IEEE Access Broadband reflectarray polarization purity ultra high-definition TV contoured-beam direct broadcast satellite crosspolar discrimination (XPD) |
author_facet |
Daniel R. Prado Manuel Arrebola Marcos R. Pino George Goussetis |
author_sort |
Daniel R. Prado |
title |
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 |
title_short |
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 |
title_full |
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 |
title_fullStr |
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 |
title_full_unstemmed |
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2 |
title_sort |
broadband reflectarray with high polarization purity for 4k and 8k uhdtv dvb-s2 |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
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. |
topic |
Broadband reflectarray polarization purity ultra high-definition TV contoured-beam direct broadcast satellite crosspolar discrimination (XPD) |
url |
https://ieeexplore.ieee.org/document/9104957/ |
work_keys_str_mv |
AT danielrprado broadbandreflectarraywithhighpolarizationpurityfor4kand8kuhdtvdvbs2 AT manuelarrebola broadbandreflectarraywithhighpolarizationpurityfor4kand8kuhdtvdvbs2 AT marcosrpino broadbandreflectarraywithhighpolarizationpurityfor4kand8kuhdtvdvbs2 AT georgegoussetis broadbandreflectarraywithhighpolarizationpurityfor4kand8kuhdtvdvbs2 |
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