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:
Aug. 25, 2026
Filed:
Oct. 12, 2023
Thales, Meudon, FR;
Centre National D'etudes Spatiales, Paris, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite DE Rennes, Rennes, FR;
Nantes Universite, Nantes, FR;
Centralesupelec, Gif sur Yvette Cedex, FR;
Insa DE Rennes, Rennes Cedex, FR;
Jean-Philippe Fraysse, Toulouse, FR;
Léonin Lassauce, Epinal, FR;
Ségolène Tubau, Toulouse, FR;
Mauro Ettorre, Rennes, FR;
Hervé Legay, Plaisance du Touch, FR;
THALES, Meudon, FR;
CENTRE NATIONAL D'ETUDES SPATIALES, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE RENNES, Rennes, FR;
NANTES UNIVERSITE, Nantes, FR;
CENTRALESUPELEC, Gif sur Yvette, FR;
INSA DE RENNES, Rennes, FR;
Abstract
A quasi-optical beamformer includes a plurality N>1 of power feeds (PF), each of the i∈[1; N] power feeds (PF) being configured to emit a respective radio-frequency beam denoted R, a radio-frequency transmission line (LT) fed at a first end by the power feeds and comprising at a second end a plurality of network ports (PR) that are configured to collect radio-frequency radiation, the transmission line (LT) comprising a radio-frequency waveguide (GO) that comprises at least two metal plates (PM) that are stacked so as to guide the radio-frequency beams R, i∈[1; N] towards the network ports (PR), the transmission line (LT) extending along a central main axis denoted axis x, a first reflector (M) having a first centre (C) centred on the axis x and a first effective radius of curvature and being configured to reflect the guided radio-frequency beams R, i∈[1; N], a second reflector (M) having a second effective radius of curvature and being configured to reflect the radio-frequency beams (RF) reflected by the first reflector so as to direct them towards the network ports so as to form output radio-frequency beams (RS), the first and second effective radii of curvature and an arrangement of the power feeds (PF) with respect to the first reflector being configured so that: each of the output radio-frequency beams (RS) is a plane wave, and a transverse amplitude distribution A, on the network ports (PR), of each output radio-frequency beam (RS), is substantially identical.