Patent ID: 6124828
Filing Date: 2000-09-26
Classification: G01S,H01Q,H04K

Abstract:
An array antenna with anti-jamming in reception, provided with radiating elements fitted out individually or in groups with amplitude-controlled and phase-controlled passive or active modules enabling aiming at transmission as well as at reception by analog beam-forming, and with a reception anti-jamming circuit comprising:first reduced adaptive computational beam-forming means working on reception signals coming from said controlled modules and assembled in a first manner in linear sub-arrays parallel to a first direction, determining corrections to be dictated on the reception signals coming from the different linear sub-arrays taken into account to eliminate jammers and applying these corrections to the controlled modules, andsecond reduced adaptive computational beam-forming means working on reception signals coming from the controlled modules, and assembled in a second manner in linear sub-arrays parallel to a second direction, determining corrections to be dictated on the reception signals coming from the different sub-arrays taken into account to eliminate jammers, dictating these corrections on the reception signals coming from the different sub-arrays taken into account before added them up to form a reception channel for the total antenna.