EP 2337152 B1 20170531 - Dual-polarisation reflectarray antenna with improved cross-polarization properties
Title (en)
Dual-polarisation reflectarray antenna with improved cross-polarization properties
Title (de)
Doppelpolarisierungsreflektionsarray-Antenne mit verbesserten Kreuzpolarisierungseigenschaften
Title (fr)
Antenne à réseau de réflexion à double polarisation dotée de propriétés de polarisation croisée améliorées
Publication
Application
Priority
ES 200931140 A 20091210
Abstract (en)
[origin: EP2337152A1] Dual-linear polarisation reflectarray antenna with improved cross-polarization properties. The reflectarray antenna consists of a planar array of phasing cells illuminated by a feed, that produces a collimated or shaped beam in dual-linear polarisation, where the phasing cells are made of varying-sized conductive patches with a rotation angle that has been adjusted to minimise the cross-polarisation. In a first implementation, the patches in which the angle of incidence is larger than a prefixed threshold are rotated so that the propagation direction of the incident field is contained on a symmetry plane of the patches. In a second implementation, the rotation angle of the patches in each cell is optimized to minimize the cross-polarisation in a prefixed frequency band. The invention can be applied to dual-polarization antennas in Telecommunication satellites
IPC 8 full level
H01Q 3/46 (2006.01); H01Q 1/28 (2006.01); H01Q 1/38 (2006.01)
CPC (source: EP ES)
H01Q 1/288 (2013.01 - EP); H01Q 3/46 (2013.01 - EP ES); H01Q 21/00 (2013.01 - ES)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2337152 A1 20110622; EP 2337152 B1 20170531; ES 2339099 A1 20100514; ES 2339099 B2 20101013
DOCDB simple family (application)
EP 10290640 A 20101203; ES 200931140 A 20091210