Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Bui Van, Ha"'
Large radio telescopes in the 21st century such as the Low-Frequency Array (LOFAR) or the Murchison Widefield Array (MWA) make use of phased aperture arrays of antennas to achieve superb survey speeds. The Square Kilometer Array low frequency instrum
Externí odkaz:
http://arxiv.org/abs/1705.10084
Autor:
Bui-Van, Ha, Abraham, Jens, Arts, Michel, Gueuning, Quentin, Raucy, Christopher, Gonzalez-Ovejero, David, Acedo, Eloy de Lera, Craeye, Christophe
A fast full-wave simulation technique is presented for the analysis of large irregular planar arrays of identical 3-D metallic antennas. The solution method relies on the Macro Basis Functions (MBF) approach and an interpolatory technique to compute
Externí odkaz:
http://arxiv.org/abs/1702.03781
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
Reflectarray antennas (RAs) are nowadays a quite popular technology, used in several applications, due to a significant number of attractive properties, such as low cost, low weight, conformal deployment, and the possibility of introducing suitable r
Externí odkaz:
https://doaj.org/article/223a48446c4d483f842ca9cd94796393
Autor:
Van Hoorebeeck, Loïc, Cavillot, Jean, Bui Van Ha, Glineur, François, Craeye, Christophe, 13th European Conference on Antennas and Propagation (EuCAP 2019)
The low frequency part of the Square Kilometre Array (SKA-Low), currently in development, will need accurate calibration [1]. A self-calibration is widely used in the radio astronomy literature and allows the calibration of several SKA pathfinders. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1493::a9996a4abad68698b8b0432077f340e7
https://hdl.handle.net/2078.1/217365
https://hdl.handle.net/2078.1/217365
Autor:
Bui Van Ha, Pairon, Thomas, Craeye, Christophe, 2018 International Conference on Electromagnetics in Adavance Applications - ICEAA 2018
A fast iterative solver is presented to analyze large random arrays made of identical elements. The technique exploits the macro basis functions (MBFs) to represent the currents on the antennas. Furthermore, those MBFs are supposed to be the same on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::302a8037585c0cefb893ca9c06723b55
https://hdl.handle.net/2078.1/217464
https://hdl.handle.net/2078.1/217464
Akademický článek
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Akademický článek
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In this letter, a new optimization algorithm, the Modified compact Genetic Algorithm (M-cGA) is introduced and applied to the synthesis of thinned arrays. The M-cGA has been derived from the compact Genetic Algorithm (cGA), properly modified and impr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7db9d99141da0dbaba5b8a35cb4e938
http://hdl.handle.net/11311/989600
http://hdl.handle.net/11311/989600
Autor:
Craeye, Christophe, Buisson Douglas, Razavi, Nima, Bui Van Ha, 2016 URSI International Symposium on Electromagnetic Theory, EMTS 2016
A differential equation is established to transform an array with constant average density into an array with prescribed density. It is shown that this allows good control over the first few sidelobes. This is especially true when combined with a lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bb91f39bcd99410a9d0026fa5658cac
https://hdl.handle.net/2078.1/195120
https://hdl.handle.net/2078.1/195120