EP 0504552 A1 19920923 - Multi-mode beam forming networks for multi beam reflector antenna.
Title (en)
Multi-mode beam forming networks for multi beam reflector antenna.
Title (de)
Netzwerk zur Strahlformung für eine Mehrmoden-Mehrstrahl-Reflektorantenne.
Title (fr)
Réseau de formation de faisceaux pour une antenne multifaisceaux à modes multiples à réflecteur.
Publication
Application
Priority
IT RM910050 A 19910123
Abstract (en)
This invention concerns a partially overlapped beam antenna system, formed by a reflector, an array of radiating elements and a beam-forming network, all in a peculiar configuration which is the most innovative feature of this invention. The configuration consists of a double cascade which exploits all possible degrees of freedom applicable to the optimisation of the radiating element excitation coefficients. The optimisation of such coefficients in a multi-feed reflector system, with two or more overlapping beams, only the orthogonality of the exciters has to be ensured, each for its own coverage. This invention belongs to the electronic antenna field, with a particularly favourable application in space-borne platforms. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 3/40 (2006.01); H01Q 25/00 (2006.01)
CPC (source: EP)
H01Q 3/40 (2013.01); H01Q 25/007 (2013.01)
Citation (search report)
- [Y] EP 0313057 A2 19890426 - HUGHES AIRCRAFT CO [US]
- [Y] US 4710776 A 19871201 - ROEDERER ANTOINE G [NL], et al
- [Y] EP 0261983 A2 19880330 - COM DEV LTD [CA]
- [Y] US 4633259 A 19861230 - HRYCAK PETER D [US]
- [A] US 4638317 A 19870120 - EVANS GARY E [US]
- [A] US 4231040 A 19801028 - WALKER SCOTT H
Designated contracting state (EPC)
AT DE FR GB NL SE
DOCDB simple family (publication)
EP 0504552 A1 19920923; EP 0504552 B1 20011024; AT E207657 T1 20011115; DE 69232146 D1 20011129; DE 69232146 T2 20020711; IT 1244907 B 19940913; IT RM910050 A0 19910123; IT RM910050 A1 19920724
DOCDB simple family (application)
EP 92101034 A 19920123; AT 92101034 T 19920123; DE 69232146 T 19920123; IT RM910050 A 19910123