The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 1990
Filed:
Mar. 20, 1989
Regis Lenormand, Toulouse, FR;
Marcel Billand, Noe, FR;
Pierre Fraise, Frouzins, FR;
Jean-Claude Goupil, Plaisance du Touch, FR;
Gerard Raguenet, Labarthe sur Leze, FR;
Didier Rene, Toulouse, FR;
Societe Anonyme dite: Alcatel Espace, Courbevoie, FR;
Abstract
The present invention relates to an antenna which is electronically reconfigurable in transmission. The antenna comprises an array (11) of elementary sources, an energy-focusing reflector (10), with the array (11) being situated in the focal zone of the reflector, and control and feed electronics, the electronics comprising an amplifier stage (22) constituted by amplifiers (24) and including at least one generalized coupler disposed at the outputs of the amplifiers (24), and beam-forming circuits (20, 21) each corresponding to a transmitted beam, with the amplitude and relative phase of the signals leaving said circuits being controlled by respective adjustable phase shifters and adjustable attenuators. The invention is particularly applicable to space telecommunications.