Electronically scanned antenna

Details Electronically scanned antenna Electronically scanned antenna

1989-11-03

1991-08-06

Issing, Gregory C.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

H01Q 322

Patent

active

050381474

ABSTRACT:
An electronically scanned antenna comprising an array (11) of elementary sources, an energy-focusing reflector (10), and feed and control electronics, with the array (11) being situated in the focal zone of the reflector, and in which elementary sources that are not used simultaneously are grouped together in classes (Ci) in which only one source can be active at a time, with all of the sources in each class (Ci) being interconnected by a passive combiner (40) for that class. The invention is applicable in particular to space telecommunications.

REFERENCES:
patent: 3438029 (1969-04-01), Fuchser et al.
patent: 3500427 (1970-03-01), Landesman et al.
patent: 3737899 (1973-06-01), Georgopoulos
patent: 4090199 (1978-05-01), Archer
patent: 4228436 (1980-10-01), DuFort
patent: 4257050 (1981-03-01), Ploussios
patent: 4544927 (1985-10-01), Kurth et al.
patent: 4583061 (1986-04-01), O'Shea
Patent Abstracts of Japan, vol. 12, No. 60(E-584) (2907), Feb. 23, 1988; & JP-A-62-203-403 (Kokusai Denshin Denwa), 8.9.1987.

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