EP 0422551 B1 19940810 - Electronically scanned transmitting antenna.
Title (en)
Electronically scanned transmitting antenna.
Title (de)
Sendeantenne mit elektronischer Schaltung.
Title (fr)
Antenne à balayage électronique en émission.
Publication
Application
Priority
FR 8913188 A 19891010
Abstract (en)
[origin: EP0422551A1] The invention relates to an antenna electronically scanned in transmission, comprising an energy-focusing reflector (10), an array (11) of elementary sources, situated in the focal zone of this reflector, so as to produce the synthesis of the electromagnetic field in this focal zone, characterised in that it possesses a zone of coverage, produced by several adjacent spots, which is covered partially and simultaneously by one or more beams whose pathways are independent and using to do this the same number m of elementary sources (or groups of sources) each selected from m classes of sources which are never called upon simultaneously in one beam, so that at each instant an elementary source belonging to one and only one class is called upon, the switching of the sources ensuring the agility of the beam or beams. Application in particular to the field of space telecommunications. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 19/17 (2006.01); H01Q 3/26 (2006.01); H01Q 3/36 (2006.01); H01Q 3/40 (2006.01); H01Q 21/00 (2006.01); H01Q 25/00 (2006.01)
CPC (source: EP)
H01Q 3/2658 (2013.01); H01Q 21/0025 (2013.01); H01Q 25/007 (2013.01)
Citation (examination)
- EP 0368121 A1 19900516 - ALCATEL ESPACE [FR]
- JP S62203403 A 19870908 - KOKUSAI DENSHIN DENWA CO LTD
- 1988 International Symposium Digest Antennas and Propagation,vol.II,IEEE,Syracuse,N.Y.,USA;
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0422551 A1 19910417; EP 0422551 B1 19940810; CA 2027183 A1 19910411; CA 2027183 C 19940719; DE 69011456 D1 19940915; DE 69011456 T2 19941208; FR 2652952 A1 19910412; FR 2652952 B1 19920124; JP H03135205 A 19910610
DOCDB simple family (application)
EP 90119246 A 19901008; CA 2027183 A 19901009; DE 69011456 T 19901008; FR 8913188 A 19891010; JP 27205090 A 19901009