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:
Jul. 22, 1997
Filed:
Jan. 20, 1995
Applicant:
Inventors:
Claude Aubry, Grigny, FR;
Andre Peyrat, Montrouge, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
342371 ; 342372 ;
Abstract
Disclosed is a device to compensate for the aiming errors caused by malfunctions in phase-shifters of electronic scanning antennas. With the electronic scanning antenna being plane and having a power distribution that is symmetrical in amplitude and in phase, the device has means positioning a malfunctioning phase-shifter and its symmetrical phase-shifter in supplementary phase states. Application notably to landing systems requiring high precision for the aiming of the beam in free space.