EP 0421722 B1 19960619 - Multiple beam deployable space antenna system
Title (en)
Multiple beam deployable space antenna system
Title (de)
Entfaltbares Weltraumantennensystem mit Vielfach-Strahlungskeulen
Title (fr)
Système d'antenne spatiale déployable à faisceaux multiples
Publication
Application
Priority
US 41581489 A 19891002
Abstract (en)
[origin: EP0421722A2] A multiple beam space antenna system for facilitating communications between a satellite switch (100) and a plurality of earth-based stations (1,a,b,) is shown. The antenna is deployed after the satellite is in orbit by inflation of a raft-type supporting structure which contains a number of antenna horns (80). These antenna horns are oriented in substantially concentric circular groups (A-D) about a centrally located antenna horn (80). Each of the antenna beams projects an area on the earth. Each of the areas (a,b) of the beams are contiguous. As a result, one large area is subdivided into many smaller areas to facilitate communications. In addition, a lens (FIG. 7C and 7D) may be employed to focus the beams of the horn antennas.
IPC 1-7
IPC 8 full level
H01Q 21/00 (2006.01); H01Q 1/08 (2006.01); H01Q 1/28 (2006.01); H01Q 13/02 (2006.01); H01Q 19/06 (2006.01); H01Q 21/20 (2006.01); H01Q 25/00 (2006.01); H04B 7/185 (2006.01)
CPC (source: EP)
H01Q 1/081 (2013.01); H01Q 19/06 (2013.01); H01Q 21/20 (2013.01); H01Q 25/00 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0421722 A2 19910410; EP 0421722 A3 19911113; EP 0421722 B1 19960619; AT E139653 T1 19960715; CA 2022854 A1 19910403; CA 2022854 C 19950606; DE 69027501 D1 19960725; DE 69027501 T2 19970102; JP 2611528 B2 19970521; JP H03139926 A 19910614
DOCDB simple family (application)
EP 90310760 A 19901002; AT 90310760 T 19901002; CA 2022854 A 19900808; DE 69027501 T 19901002; JP 26326990 A 19901002