Thales

Laurent Collin

Pierre-Henri Boutigny

Laurent Beguet

Alain Le Fevre

Pierre Boutigny

Denis Triquenaux

A method is provided for defining an antenna with weak sidelobes having at least two sources, in which the sources are regularly distributed and the reflectors have suitable shapes, obtained by the implementation of a specific algorithm, the reflectors being illuminated by sources composed of a single part. The obtained antenna will offer a gain close to 0 in the direction of the array lobes, so these will be as low as possible.

Method for defining the structure of a Ka band antenna

A dual-polarization communication antenna for satellite mobile links comprising a number of radiant elements etched on a substrate, a connector enabling the antenna elements to be connected to a power source, said antenna including one or more subantennas, each of said subantennas including: N dual-polarization antenna elements mounted in series with one another and linked together by means of a portion of a first conduction line C; K dual-polarization antenna elements linked together by means of a portion of a second conduction line C, said K antenna elements being arranged relative to one another in parallel; wherein said lines C, Care electrically linked and linked to the connector; and the set formed by the N antenna elements is mounted in series with the set of the K antenna elements.

Dual-polarization communication antenna for mobile satellite links

Method and radiofrequency apparatus comprising at least one transmitter and/or one receiver of one or more useful signals comprising at least one device adapted to applying a coefficient to the useful signal or signals. Application to BPSK to QPSK type modulation.

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Gennevilliers, France

Laurent Collin