EP 1157444 B1 20030730 - ANTENNA WITH DOUBLE-BAND ELECTRONIC SCANNING, WITH ACTIVE MICROWAVE REFLECTOR
Title (en)
ANTENNA WITH DOUBLE-BAND ELECTRONIC SCANNING, WITH ACTIVE MICROWAVE REFLECTOR
Title (de)
ANTENNE MIT DOPPELBANDIGER ELEKTRONISCHERABTASTUNG MIT AKTIVEM MIRKOWELLENREFKELEKTOR
Title (fr)
ANTENNE A BALAYAGE ELECTRONIQUE BI-BANDE, A REFLECTEUR HYPERFREQUENCE ACTIF
Publication
Application
Priority
- FR 0000220 W 20000131
- FR 9901378 A 19990205
Abstract (en)
[origin: FR2789521A1] The invention concerns an antenna comprising at least two microwave sources (SD, SG) transmitting in different frequency bands and having opposite circular polarisations, an active reflector array (4) comprising elementary cells illuminated by the sources (SD, SG) and a polarisation rotator (21), interposed between the reflector array (4) and the sources (SD, SG) transforming the circular polarisations into two intersecting linear polarisations. An elementary cell comprises a conductor plane and two transverse phase-shifters, the first phase-shifter is substantially parallel to one linear polarisation and the second phase-shifter is substantially parallel to the other linear polarisation. The conductor plane is arranged substantially parallel to the phase shifters. The invention is useful in particular for microwave applications requiring two transmitting bands which, moreover, are subjected to very low-cost conditions of production.
IPC 1-7
IPC 8 full level
H01P 1/185 (2006.01); H01Q 3/46 (2006.01); H01Q 5/00 (2006.01); H01Q 5/45 (2015.01); H01Q 15/24 (2006.01)
CPC (source: EP US)
H01P 1/185 (2013.01 - EP US); H01Q 3/46 (2013.01 - EP US); H01Q 5/45 (2015.01 - EP US); H01Q 9/14 (2013.01 - EP US); H01Q 15/242 (2013.01 - EP US); H01Q 15/244 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
FR 2789521 A1 20000811; AU 2300700 A 20000825; DE 60004174 D1 20030904; DE 60004174 T2 20040415; EP 1157444 A1 20011128; EP 1157444 B1 20030730; US 6437752 B1 20020820; WO 0046876 A1 20000810
DOCDB simple family (application)
FR 9901378 A 19990205; AU 2300700 A 20000131; DE 60004174 T 20000131; EP 00901684 A 20000131; FR 0000220 W 20000131; US 89093201 A 20010806