EP 2584650 B1 20170524 - Wide scan steerable antenna with no key-hole
Title (en)
Wide scan steerable antenna with no key-hole
Title (de)
Steuerbare Breitenscan-Antenne ohne Schlüsselloch
Title (fr)
Antenne orientable à balayage important sans trou de clé
Publication
Application
Priority
US 201161627710 P 20111017
Abstract (en)
[origin: EP2584650A1] A steerable antenna architecture (10), or configuration, for optimal steering of transmitting and/or receiving beam (12) over wide scan angles, is capable of steering the beam (12) on a full hemisphere (2À steradians), with no singularity or key-hole within a coverage area (14), and with only one RF rotary joint. The architecture (10) includes a dual-reflector assembly (26) defining an antenna focal point (30) located close to a main reflector surface (28) and a signal feed chain having a signal source (18) located adjacent to the antenna focal point (30) and defining a feed axis (40) substantially pointing towards a sub-reflector intersection point (32). A first actuator (42) rotates the feed chain and the dual-reflector assembly (26) about a first rotation axis (RA1) generally perpendicular to the feed axis (40) and not intersecting with the coverage area (14). A second actuator (46) rotates one of the main reflector (28) and the dual-reflector assembly (26) about a second rotation axis (RA2) aligned with the feed axis (40).
IPC 8 full level
H01Q 3/08 (2006.01); H01Q 3/16 (2006.01); H01Q 3/20 (2006.01); H01Q 19/19 (2006.01)
CPC (source: EP)
H01Q 3/08 (2013.01); H01Q 3/16 (2013.01); H01Q 3/20 (2013.01); H01Q 19/19 (2013.01); H01Q 19/193 (2013.01)
Citation (examination)
US 6285338 B1 20010904 - BAI MONTY W [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES 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 2584650 A1 20130424; EP 2584650 B1 20170524; JP 2013093846 A 20130516; JP 5961087 B2 20160802
DOCDB simple family (application)
EP 12188658 A 20121016; JP 2012229056 A 20121016