EP 0446610 A1 19910918 - Magnified phased array with a digital beamforming network.
Title (en)
Magnified phased array with a digital beamforming network.
Title (de)
Vergrösserte phasengesteuerte Gruppenantenne mit digitalem Strahlformungsnetzwerk.
Title (fr)
Antenne à balayage électronique à grossissement avec un réseau numérique de formation de faisceaux.
Publication
Application
Priority
US 49002890 A 19900307
Abstract (en)
A magnified phased array antenna system (10) incorporating a digital beamforming network (22) therein. The magnified phased array antenna system (10) comprises a reflector system (12) employing a transfer lens (14) disposed at the focal plane of the reflector system (12) and an antenna array (20) which illuminates or receives energy from the transfer lens (14). In satellite to/from ground links where the field of view is limited, the present invention achieves adequate gain using a minimum number of antenna elements. The digital beamforming network (22) provides multibeam capability in an effective manner. The digital beamforming network (22) provides for fast scanning spot beams and reconfigurable area coverage beams. The present invention has a reduced number of elements, and its reliability is improved because of redundancy in the array. The use of digital beamforming provides for multiple, simultaneous, reconfigurable beams. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 3/38 (2006.01); H01Q 3/26 (2006.01); H01Q 19/06 (2006.01); H01Q 19/19 (2006.01); H01Q 25/00 (2006.01); H04B 7/10 (2006.01)
CPC (source: EP)
H01Q 3/2658 (2013.01); H01Q 25/008 (2013.01)
Citation (search report)
- [Y] GB 2130798 A 19840606 - STANDARD TELEPHONES CABLES LTD
- [Y] FR 2588422 A1 19870410 - THOMSON CSF [FR]
- [A] EP 0109322 A1 19840523 - THOMSON CSF [FR]
- [A] EP 0276817 A2 19880803 - MITSUBISHI ELECTRIC CORP [JP]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 91101693 A 19910207; JP 6788991 A 19910307