Patents by Inventor Ronan Sauleau

Ronan Sauleau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10135150
    Abstract: A beamformer comprises a transmission line fed by at least one input feed source, the transmission line comprising two stacked metal plates extending, along two directions, longitudinal X and transverse Y. The transmission line further comprises at least one protuberance extending in the directions X, Y, and in a direction Z orthogonal to the plane XY, the protuberance comprising a metal insert extending in the directions X and Y and extending height-wise in the direction Z, the insert comprising a base fastened to one of the two metal plates and a free end and having a contour of variable length between the two lateral edges of the transmission line. In the protuberance, the transmission line is adjoining the insert and forms, in the direction Z, a circumvolution around the insert.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: November 20, 2018
    Assignees: THALES, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Hervé Legay, Ségolène Tubau, Jean-Philippe Fraysse, Etienne Girard, Mauro Ettorre, Ronan Sauleau, Nelson Fonseca
  • Patent number: 9887458
    Abstract: A compact Butler matrix consists a planar multilayer structure comprising N parallel metal plate waveguides PPW, stacked one on top of the other, two adjacent waveguides PPW comprising a common wall consisting of one of the metal plates. The couplers, the phase-shifters and the crossover devices of the Butler matrix consist of metasurfaces incorporated in the metal plates. The planar two-dimensional beam-former can comprise a Butler matrix with waveguides PPW associated with optical lenses incorporated in each waveguide PPW. Alternatively, the planar two-dimensional beam-former can comprise an upper stage consisting of a Butler matrix with waveguides PPW, and a lower stage comprising waveguides PPW equipped with incorporated reflectors, the two stages being connected in series.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 6, 2018
    Assignees: THALES, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Hervé Legay, Jean-Philippe Fraysse, Etienne Girard, Mauro Ettorre, Ronan Sauleau
  • Patent number: 9843099
    Abstract: A radiating element is provided, for example for array antenna, having stacked resonant cavities of Pérot-Fabry type, of compact structure, a lower cavity being fed by excitation means, the radiating element being characterized in that corrugations are formed substantially below a first earth plane delimiting in its lower part the upper resonant cavity. A radiating element structure of improved compactness is also proposed, whose upper cavity is surmounted by a polarizing radome.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: December 12, 2017
    Assignees: Thales, Centre National De La Recherche Scientifique
    Inventors: Hervé Legay, Shoaib Muhammad, Ronan Sauleau, Gérard Caille
  • Patent number: 9755291
    Abstract: A compact dual-polarization planar power splitter comprises at least four asymmetric orthomode transducers (OMTs) connected in an array suitable for being coupled in-phase to a dual orthogonal polarization feed source via two power distributors mounted perpendicularly in relation to one another, each power distributor comprising at least two lateral metal waveguides disposed parallel to one another, and a transverse metal waveguide coupled perpendicularly to the two lateral metal waveguides and four ends of the lateral waveguides coupled respectively to the four asymmetric OMTs.
    Type: Grant
    Filed: November 1, 2014
    Date of Patent: September 5, 2017
    Assignee: Thales
    Inventors: Herve Legay, Adrien Cottin, Ronan Sauleau, Patrick Pottier
  • Patent number: 9728863
    Abstract: A power splitter comprises at least two mutually parallel lateral waveguides with rectangular cross-section and a transverse waveguide with rectangular cross-section comprising two opposite ends respectively connected to the two lateral waveguides. The two lateral waveguides are oriented along a direction Y and mounted flat with their large side parallel to a plane XY, the transverse waveguide is oriented along a direction X perpendicular to the direction Y and mounted edgewise with its small side parallel to the plane XY, and each lateral waveguide is coupled to the transverse waveguide by a tee coupler in the E-plane with embedded junction, the two ends of the transverse waveguide being respectively embedded in each lateral waveguide, at the center of the said respective lateral waveguide.
    Type: Grant
    Filed: November 1, 2014
    Date of Patent: August 8, 2017
    Assignee: THALES
    Inventors: Herve Legay, Adrien Cottin, Ronan Sauleau, Patrick Potier, Pierre Bosshard
  • Patent number: 9627779
    Abstract: The multi-beam former comprises: two stages connected together and intended to synthesize beams focused along two directions in space; each stage comprises at least two multi-layer plane structures (P11, P1Ny), (P21, P2Mx), superposed one above the other; each multi-layer structure (P11, P1Ny, P21, P2Mx) comprises an internal reflector, at least two first internal sources disposed in front of the internal reflector and linked to two input/output ports (27, 26) aligned along an axis (V, V?), at least two second internal sources disposed in a focal plane of the internal reflector and linked to two second input/output ports (25, 28) aligned along an axis (U, U?) perpendicular to the axis (V, V?); the two second internal sources of the same multi-layer structure (P11) of the first stage are respectively linked to two first internal sources of two different multi-layer structures (P21), (P2Mx) of the second stage.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 18, 2017
    Assignees: THALES, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Hervé Legay, Ronan Sauleau, Mauro Ettorre
  • Publication number: 20170005407
    Abstract: A beamformer comprises a transmission line fed by at least one input feed source, the transmission line comprising two stacked metal plates extending, along two directions, longitudinal X and transverse Y. The transmission line further comprises at least one protuberance extending in the directions X, Y, and in a direction Z orthogonal to the plane XY, the protuberance comprising a metal insert extending in the directions X and Y and extending height-wise in the direction Z, the insert comprising a base fastened to one of the two metal plates and a free end and having a contour of variable length between the two lateral edges of the transmission line. In the protuberance, the transmission line is adjoining the insert and forms, in the direction Z, a circumvolution around the insert.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 5, 2017
    Inventors: Hervé LEGAY, Ségolène TUBAU, Jean-Philippe FRAYSSE, Etienne GIRARD, Mauro ETTORRE, Ronan SAULEAU, Nelson FONSECA
  • Publication number: 20160285165
    Abstract: A compact Butler matrix consists a planar multilayer structure comprising N parallel metal plate waveguides PPW, stacked one on top of the other, two adjacent waveguides PPW comprising a common wall consisting of one of the metal plates. The couplers, the phase-shifters and the crossover devices of the Butler matrix consist of metasurfaces incorporated in the metal plates. The planar two-dimensional beam-former can comprise a Butler matrix with waveguides PPW associated with optical lenses incorporated in each waveguide PPW. Alternatively, the planar two-dimensional beam-former can comprise an upper stage consisting of a Butler matrix with waveguides PPW, and a lower stage comprising waveguides PPW equipped with incorporated reflectors, the two stages being connected in series.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Inventors: Hervé LEGAY, Jean-Philippe FRAYSSE, Etienne GIRARD, Mauro ETTORRE, Ronan SAULEAU
  • Patent number: 9246232
    Abstract: A multilayer antenna is provided, which includes a power supply portion generating a wave, a radiating portion, and a guide portion that makes it possible to guide the wave from the power supply portion to the radiating portion. The guide portion includes: at least two stacked guide layers having parallel planes and, for each pair of adjacent layers, a transition between the adjacent layers, including a reflector engaging with a slot-coupling. For at least one pair of adjacent layers, for which the guide portion includes a non-planar reflector, the slot-coupling includes a plurality of slots. Each slot includes a main body that is elongate along at least one axis. The slots are placed on at least one row and together form a pattern that extends along the reflector and has a shape that is dependent on the shape of the reflector.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 26, 2016
    Assignees: Universite De Rennes 1, Centre National de la Recherche Scientifique
    Inventors: Ronan Sauleau, Mauro Ettorre
  • Publication number: 20150123863
    Abstract: A compact dual-polarization planar power splitter comprises at least four asymmetric orthomode transducers (OMTs) connected in an array suitable for being coupled in-phase to a dual orthogonal polarization feed source via two power distributors mounted perpendicularly in relation to one another, each power distributor comprising at least two lateral metal waveguides disposed parallel to one another, and a transverse metal waveguide coupled perpendicularly to the two lateral metal waveguides and four ends of the lateral waveguides coupled respectively to the four asymmetric OMTs.
    Type: Application
    Filed: November 1, 2014
    Publication date: May 7, 2015
    Inventors: Herve LEGAY, Adrien COTTIN, Ronan SAULEAU, Patrick POTTIER
  • Publication number: 20150123867
    Abstract: A power splitter comprises at least two mutually parallel lateral waveguides with rectangular cross-section and a transverse waveguide with rectangular cross-section comprising two opposite ends respectively connected to the two lateral waveguides. The two lateral waveguides are oriented along a direction Y and mounted flat with their large side parallel to a plane XY, the transverse waveguide is oriented along a direction X perpendicular to the direction Y and mounted edgewise with its small side parallel to the plane XY, and each lateral waveguide is coupled to the transverse waveguide by a tee coupler in the E-plane with embedded junction, the two ends of the transverse waveguide being respectively embedded in each lateral waveguide, at the centre of the said respective lateral waveguide.
    Type: Application
    Filed: November 1, 2014
    Publication date: May 7, 2015
    Inventors: Herve LEGAY, Adrien COTTIN, Ronan SAULEAU, Patrick POTTIER, Pierre BOSSHARD
  • Patent number: 8976072
    Abstract: A flat scanning antenna comprises at least one slotted waveguide array comprising two dielectric substrates, one superposed above the other. The two substrates comprise the same number of waveguides, which are in mutual correspondence and communicate between them, pairwise, via corresponding coupling slots. Each waveguide of the upper substrate further includes a plurality of radiating slots, all the radiating slots being mutually parallel and oriented in the same direction and each waveguide of the lower substrate includes an individual internal supply circuit comprising an individual phase-shift/amplification electronic circuit.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: March 10, 2015
    Assignee: Thales
    Inventors: Regis Lenormand, Jean-Michel Merour, Jean-Michel Mateus, Ronan Sauleau, Mauro Ettorre, Gerard Raguenet
  • Publication number: 20140354499
    Abstract: A multi-beam former comprises: two stages connected together and intended to synthesize beams focused along two directions in space; each stage comprises at least two multi-layer plane structures, superposed one above the other; each multi-layer structure comprises an internal reflector, at least two first internal sources disposed in front of the internal reflector and linked to two input/output ports aligned along an axis, at least two second internal sources disposed in a focal plane of the internal reflector and linked to two second input/output ports aligned along an axis perpendicular to the axis; the two second internal sources of the same multi-layer structure of the first stage are respectively linked to two first internal sources of two different multi-layer structures of the second stage.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 4, 2014
    Inventors: Hervé Legay, Ronan Sauleau, Mauro Ettorre
  • Publication number: 20130207859
    Abstract: A radiating element is provided, for example for array antenna, having stacked resonant cavities of Pérot-Fabry type, of compact structure, a lower cavity being fed by excitation means, the radiating element being characterized in that corrugations are formed substantially below a first earth plane delimiting in its lower part the upper resonant cavity. A radiating element structure of improved compactness is also proposed, whose upper cavity is surmounted by a polarizing radome.
    Type: Application
    Filed: April 29, 2011
    Publication date: August 15, 2013
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, THALES
    Inventors: Hervé Legay, Shoaib Muhammad, Ronan Sauleau, Gérard Caille
  • Publication number: 20120287006
    Abstract: A flat scanning antenna comprises at least one slotted waveguide array comprising two dielectric substrates, one superposed above the other. The two substrates comprise the same number of waveguides, which are in mutual correspondence and communicate between them, pairwise, via corresponding coupling slots. Each waveguide of the upper substrate further includes a plurality of radiating slots, all the radiating slots being mutually parallel and oriented in the same direction and each waveguide of the lower substrate includes an individual internal supply circuit comprising an individual phase-shift/amplification electronic circuit.
    Type: Application
    Filed: January 17, 2011
    Publication date: November 15, 2012
    Applicant: THALES
    Inventors: Regis Lenormand, Jean-Michel Merour, Jean-Michel Mateus, Ronan Sauleau, Mauro Ettorre, Gerard Raguenet
  • Publication number: 20120092224
    Abstract: A multilayer antenna is provided, which includes a power supply portion generating a wave, a radiating portion, and a guide portion that makes it possible to guide the wave from the power supply portion to the radiating portion. The guide portion includes: at least two stacked guide layers having parallel planes and, for each pair of adjacent layers, a transition between the adjacent layers, including a reflector engaging with a slot-coupling. For at least one pair of adjacent layers, for which the guide portion includes a non-planar reflector, the slot-coupling includes a plurality of slots. Each slot includes a main body that is elongate along at least one axis. The slots are placed on at least one row and together form a pattern that extends along the reflector and has a shape that is dependent on the shape of the reflector.
    Type: Application
    Filed: March 29, 2010
    Publication date: April 19, 2012
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1
    Inventors: Ronan Sauleau, Mauro Ettorre