EP 0274693 B1 19920729 - COMMUNICATION ANTENNA WITH A REFLECTOR
Title (en)
COMMUNICATION ANTENNA WITH A REFLECTOR
Publication
Application
Priority
FR 8617758 A 19861218
Abstract (en)
[origin: US4825218A] A telecommunications antenna is provided with a reflector having a semi-offset geometry, a feed mounted on a feed source rigidly fixed to the reflector, an antenna pedestal for supporting the reflector and the feed. Positioning of the feed is such that, in respect of a reflector illumination half-angle beta as seen from the feed such that 45 DEG < beta <55 DEG , the offset angle alpha (angle between the focal axis DELTA Foc and the median ray of the total beam which is emitted by the feed and illuminates the reflector) is 25 DEG < alpha <35 DEG , the antenna mount being of the azimuth-elevation type known as an az-el mount.
IPC 1-7
IPC 8 full level
H01Q 1/12 (2006.01); H01Q 3/08 (2006.01); H01Q 19/13 (2006.01)
CPC (source: EP US)
H01Q 1/125 (2013.01 - EP US); H01Q 19/132 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0274693 A1 19880720; EP 0274693 B1 19920729; DE 3780794 D1 19920903; DE 3780794 T2 19930211; FR 2608846 A1 19880624; FR 2608846 B1 19890324; JP S63172503 A 19880716; US 4825218 A 19890425
DOCDB simple family (application)
EP 87118617 A 19871215; DE 3780794 T 19871215; FR 8617758 A 19861218; JP 32111887 A 19871218; US 3582387 A 19870408