Patents by Inventor Damien Pacaud
Damien Pacaud 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: 11335985Abstract: A tunable microwave system includes at least two elements, each element being chosen from a propagating guide, an evanescent guide, a resonator, and at least one coupling device arranged between the two elements and configured to couple the two elements to each other, the coupling device having a holder having an aperture and having at least one elongate element the shape of which is elongate in a polarization direction contained in a plane of the aperture, the elongate element being securely fastened to the perimeter of the aperture at at least one end, the coupling device being configured to be rotatable about an axis substantially perpendicular to the plane of the aperture so as to modify a value of the polarization direction and so that the coupling between the two elements is dependent on the value of the polarization direction.Type: GrantFiled: June 17, 2019Date of Patent: May 17, 2022Assignees: THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CENTRE NATIONAL D'ETUDES SPATIALESInventors: Damien Pacaud, Etienne Laplanche, Serge Verdeyme, Olivier Tantot, Nicolas Delhote, Stéphane Bila, Aurélien Perigaud, Ludovic Carpentier
-
Publication number: 20210167477Abstract: A tunable microwave system includes at least two elements, each element being chosen from a propagating guide, an evanescent guide, a resonator, and at least one coupling device arranged between the two elements and configured to couple the two elements to each other, the coupling device having a holder having an aperture and having at least one elongate element the shape of which is elongate in a polarization direction contained in a plane of the aperture, the elongate element being securely fastened to the perimeter of the aperture at at least one end, the coupling device being configured to be rotatable about an axis substantially perpendicular to the plane of the aperture so as to modify a value of the polarization direction and so that the coupling between the two elements is dependent on the value of the polarization direction.Type: ApplicationFiled: June 17, 2019Publication date: June 3, 2021Inventors: Damien PACAUD, Etienne LAPLANCHE, Serge VERDEYME, Olivier TANTOT, Nicolas DELHOTE, Stéphane BILA, Aurélien PERIGAUD, Ludovic CARPENTIER
-
Patent number: 9666924Abstract: A radiofrequency filter exhibiting at least one resonant mode comprises: at least one cavity at least partially closed using conductive walls, having a cylindrical outer surface defined by a directing curve described by a generatrix and having a point of symmetry, an axis passing through a point of symmetry and parallel to the generatrix being a longitudinal axis of the cavity. At least one dielectric element is arranged in the cavity and comprises: a first portion having a thickness according to the longitudinal axis and a section according to a plane perpendicular to the longitudinal axis whose vertices are distributed according to a polygon, at least two vertices being short-circuited between them by the conductive walls of the cavity, via an electrical or radiofrequency contact between the vertices and walls, at least one pyramidal portion comprising an apex and a base coinciding with an extreme section of the first portion.Type: GrantFiled: April 24, 2014Date of Patent: May 30, 2017Assignee: THALESInventors: Damien Pacaud, Nicolas Jolly
-
Patent number: 9620837Abstract: A bandpass filter for microwave-frequency wave which is frequency tunable, comprises at least one resonator. Each resonator comprises a cavity having a conducting wall substantially cylindrical in relation to an axis Z, and at least one dielectric element disposed inside the cavity. The resonator resonates on two perpendicular polarizations having respectively distributions of the electromagnetic field in the cavity that are deduced from one another by a rotation of 90° and according to one and the same frequency. The wall of the cavity comprises an insert section facing the element having a different shape from a section not situated facing the element. The insert section and the element are able to perform a rotation with respect to one another in relation to the axis Z so as to define at least a first and a second relative position differing by an angle substantially equal to 45° to within 20°.Type: GrantFiled: December 17, 2014Date of Patent: April 11, 2017Assignees: THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CENTRE NATIONAL D'ETUDES SPATIALESInventors: Hussein Ezzeddine, Aurelien Perigaud, Olivier Tantot, Nicolas Delhote, Stephane Bila, Serge Verdeyme, Damien Pacaud, Laetitia Estagerie
-
Patent number: 9620836Abstract: A frequency tunable microwave bandpass filter comprises a resonator, including: a cavity with conducting wall substantially cylindrical with axis Z having height H, and partially closed at both ends; and a dielectric element inside the cavity. The resonator resonates at two perpendicular polarizations having distributions of electromagnetic field in the cavity deduced from eachother by 90° rotation. The element rotates about an axis substantially perpendicular to axis Z, between a first and second position. The element comprises a first end wherein: in a first position the element is disposed substantially in a plane perpendicular to axis Z and the center of the first end is disposed at a height in the cavity corresponding substantially to an electric field minimum; and in a second position the element is substantially parallel to Z and the first end is disposed in a plane corresponding to an electric field maximum within +/?30%.Type: GrantFiled: December 17, 2014Date of Patent: April 11, 2017Assignees: THALES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, CENTRE NATIONAL D'ETUDES SPATIALESInventors: Nicolas Jolly, Aurelien Perigaud, Olivier Tantot, Nicolas Delhote, Stephane Bila, Serge Verdeyme, Damien Pacaud, Laetitia Estagerie
-
Patent number: 9391585Abstract: The invention relates to a multi port router device capable of carrying a number P, which is greater than or equal to three, of frequency channels, from a number M of input ports to a number N of output ports, at least one of the two numbers M and N being greater than or equal to two, characterized in that it includes at least two filters (12, 14, 16, 18), each filter comprising at least two coupled resonators, at least one resonator (Rs1, Rs2) being common to two different filters, and each input port and each output port being connected directly to at least one resonator.Type: GrantFiled: September 30, 2013Date of Patent: July 12, 2016Assignees: Centre National D'Etudes Spatiales, Centre National De La Recherche Scientifique (C.N.R.S.), Inria Institut National De Recherche En Informatique Et En Automatique, ThalesInventors: Stéphane Bila, Lëtitia Estagerie, Damien Pacaud, Jérôme Puech, Fabien Seyfert, Serge Verdeyme, Hussein Ezzeddine, Pierre Mazet
-
Patent number: 9343792Abstract: A band-pass filter for microwave is provided that can be frequency-tuned the filter comprising an input resonator comprising a metal input cavity and an input dielectric element, an output resonator comprising a metal output cavity and an output dielectric element, an input excitation means (S1) of elongate shape, an output excitation means of elongate shape, the input resonator and the output resonator being coupled, characterized in that the input dielectric element and the output dielectric element have a recess, the input excitation means penetrates the recess of the input dielectric element the output excitation means penetrates the recess of the output dielectric element, the input dielectric element is capable of carrying out a rotation about an input rotation axis, the rotations of the dielectric elements allowing the modification of the central frequency of the filter.Type: GrantFiled: July 25, 2013Date of Patent: May 17, 2016Assignees: Thales, Centre National de Recherche Scientifique—CNRS, Centre National d'Etudes Spatiales—CNESInventors: Aurelien Perigaud, Damien Pacaud, Nicolas Delhote, Olivier Tantot, Stephane Bila, Serge Verdeyme, Laetitia Estagerie
-
Patent number: 9343791Abstract: A frequency-tunable microwave-frequency wave filter with dielectric resonator, comprises a metallic cavity and at least one stack along a rotation axis, the resonator-forming stack being disposed inside the cavity and comprising at least a first and a second element each made of dielectric material, the second element being mobile in rotation with respect to the first element around the rotation axis and exhibiting a first position and at least one second position separated by an angle of rotation, and the elements exhibiting shapes such that the overall geometry of the stack is different in the at least two positions, the stack forming a first resonator adapted so that the filter exhibits a first central frequency when the second element is in the first position, and forming a second resonator adapted so that the filter exhibits a second central frequency when the second element is in the second position.Type: GrantFiled: July 25, 2013Date of Patent: May 17, 2016Assignees: Thales, Centre National de la Recherche Scientifique (CNRS)Inventors: Aurelien Perigaud, Damien Pacaud, Nicolas Delhote, Olivier Tantot, Stephane Bila, Serge Verdeyme, Laetitia Estagerie
-
Publication number: 20150180105Abstract: A frequency tunable microwave bandpass filter comprises a resonator, including: a cavity with conducting wall substantially cylindrical with axis Z having height H, and partially closed at both ends; and a dielectric element inside the cavity. The resonator resonates at two perpendicular polarizations having distributions of electromagnetic field in the cavity deduced from each other by 90° rotation. The element rotates about an axis substantially perpendicular to axis Z, between a first and second position. The element comprises a first end wherein: in a first position the element is disposed substantially in a plane perpendicular to axis Z and the centre of the first end is disposed at a height in the cavity corresponding substantially to an electric field minimum; and in a second position the element is substantially parallel to Z and the first end is disposed in a plane corresponding to an electric field maximum within ±30%.Type: ApplicationFiled: December 17, 2014Publication date: June 25, 2015Inventors: Nicolas JOLLY, Aurelien PERIGAUD, Olivier TANTOT, Nicolas DELHOTE, Stephane BILA, Serge VERDEYME, Damien PACAUD, Laetitia ESTAGERIE
-
Publication number: 20150180106Abstract: A bandpass filter for microwave-frequency wave which is frequency tunable, comprises at least one resonator. Each resonator comprises a cavity having a conducting wall substantially cylindrical in relation to an axis Z, and at least one dielectric element disposed inside the cavity. The resonator resonates on two perpendicular polarizations having respectively distributions of the electromagnetic field in the cavity that are deduced from one another by a rotation of 90° and according to one and the same frequency. The wall of the cavity comprises an insert section facing the element having a different shape from a section not situated facing the element. The insert section and the element are able to perform a rotation with respect to one another in relation to the axis Z so as to define at least a first and a second relative position differing by an angle substantially equal to 45° to within 20°.Type: ApplicationFiled: December 17, 2014Publication date: June 25, 2015Inventors: Hussein EZZEDDINE, Aurelien PERIGAUD, Olivier TANTOT, Nicolas DELHOTE, Stephane BILA, Serge VERDEYME, Damien PACAUD, Laetitia ESTAGERIE
-
Publication number: 20140320237Abstract: A radiofrequency filter exhibiting at least one resonant mode comprises: at least one cavity at least partially closed using conductive walls, having a cylindrical outer surface defined by a directing curve described by a generatrix and having a point of symmetry, an axis passing through a point of symmetry and parallel to the generatrix being a longitudinal axis of the cavity. At least one dielectric element is arranged in the cavity and comprises: a first portion having a thickness according to the longitudinal axis and a section according to a plane perpendicular to the longitudinal axis whose vertices are distributed according to a polygon, at least two vertices being short-circuited between them by the conductive walls of the cavity, via an electrical or radiofrequency contact between the vertices and walls, at least one pyramidal portion comprising an apex and a base coinciding with an extreme section of the first portion.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Inventors: Damien PACAUD, Nicolas JOLLY
-
Patent number: 8847710Abstract: A filter of longitudinal axis Z includes: at least one resonant cavity delimited by walls made of a material that has a non-zero expansion coefficient; a dielectric resonator mounted in the cavity transversally to the axis Z; a mechanical device for compensating at least one resonance frequency of the cavity as a function of the temperature. The compensation device comprises: at least one rotationally mobile finger for each mode and for each cavity, the mobile finger penetrating to a fixed depth into the cavity via a pivot link, and an external mechanical actuator mounted parallel to the axis Z and mechanically coupled to the mobile finger, the external mechanical actuator being made of a material that has a coefficient of thermal expansion at least five times lower than that of the walls of the filter.Type: GrantFiled: October 1, 2011Date of Patent: September 30, 2014Assignee: ThalesInventors: Joël Lagorsse, Damien Pacaud
-
Publication number: 20140132370Abstract: A frequency-tunable microwave-frequency wave filter with dielectric resonator, comprises a metallic cavity and at least one stack along a rotation axis, the resonator-forming stack being disposed inside the cavity and comprising at least a first and a second element each made of dielectric material, the second element being mobile in rotation with respect to the first element around the rotation axis and exhibiting a first position and at least one second position separated by an angle of rotation, and the elements exhibiting shapes such that the overall geometry of the stack is different in the at least two positions, the stack forming a first resonator adapted so that the filter exhibits a first central frequency when the second element is in the first position, and forming a second resonator adapted so that the filter exhibits a second central frequency when the second element is in the second position.Type: ApplicationFiled: July 25, 2013Publication date: May 15, 2014Inventors: Aurelien PERIGAUD, Damien PACAUD, Nicolas DELHOTE, Olivier TANTOT, Stephane BILA, Serge VERDEYME, Laetitia ESTAGERIE
-
Publication number: 20140091878Abstract: The invention relates to a multi port router device capable of carrying a number P, which is greater than or equal to three, of frequency channels, from a number M of input ports to a number N of output ports, at least one of the two numbers M and N being greater than or equal to two, characterised in that it includes at least two filters (12, 14, 16, 18), each filter comprising at least two coupled resonators, at least one resonator (Rs1, Rs2) being common to two different filters, and each input port and each output port being connected directly to at least one resonator.Type: ApplicationFiled: September 30, 2013Publication date: April 3, 2014Applicants: Centre National D'Etudes Spatiales, Thales, Inria Institut National De Recherche En Informatiq ue Et En Automatique, Centre National De La Recherche Scienifique (C.N.R .S.)Inventors: Stéphane Bila, Laétitia Estagerie, Damien Pacaud, Jérôme Puech, Fabien Seyfert
-
Publication number: 20140028415Abstract: A band-pass filter for microwave is provided that can be frequency-tuned the filter comprising an input resonator comprising a metal input cavity and an input dielectric element, an output resonator comprising a metal output cavity and an output dielectric element, an input excitation means (S1) of elongate shape, an output excitation means of elongate shape, the input resonator and the output resonator being coupled, characterized in that the input dielectric element and the output dielectric element have a recess, the input excitation means penetrates the recess of the input dielectric element the output excitation means penetrates the recess of the output dielectric element, the input dielectric element is capable of carrying out a rotation about an input rotation axis, the rotations of the dielectric elements allowing the modification of the central frequency of the filter.Type: ApplicationFiled: July 25, 2013Publication date: January 30, 2014Inventors: Aurelien PERIGAUD, Damien PACAUD, Nicolas DELHOTE, Olivier TANTOT, Stephane BILA, Serge VERDEYME, Laetitia ESTAGERIE
-
Patent number: 8395497Abstract: A radiofrequency circuit embedded onboard a satellite, data being transmitted on several channels by radiofrequency signals, includes a channel corresponding to a frequency band, and a succession of gains being able to be associated with a channel so as to generate the radiofrequency signal to be transmitted on the latter. The succession includes at least one variable-gain amplifier, the radiofrequency signals thus generated being multiplexed by a multiplexer composed of bandpass filters. The successions of gains comprise a power load arranged so as to dissipate the power of signals which is reflected by the filters of the multiplexer, said load including means for generating an alarm signal representative of the power level of the reflected signals, the alarm signal being used to control the gain of the variable-gain amplifier. The subject of the invention is also a power load.Type: GrantFiled: March 4, 2011Date of Patent: March 12, 2013Assignee: ThalesInventors: Emile Tonello, Damien Pacaud, Jean-Claude Lacombe
-
Publication number: 20120081196Abstract: A filter of longitudinal axis Z includes: at least one resonant cavity delimited by walls made of a material that has a non-zero expansion coefficient; a dielectric resonator mounted in the cavity transversally to the axis Z; a mechanical device for compensating at least one resonance frequency of the cavity as a function of the temperature. The compensation device comprises: at least one rotationally mobile finger for each mode and for each cavity, the mobile finger penetrating to a fixed depth into the cavity via a pivot link, and an external mechanical actuator mounted parallel to the axis Z and mechanically coupled to the mobile finger, the external mechanical actuator being made of a material that has a coefficient of thermal expansion at least five times lower than that of the walls of the filter.Type: ApplicationFiled: October 1, 2011Publication date: April 5, 2012Applicant: THALESInventors: Joël LAGORSSE, Damien PACAUD
-
Publication number: 20120056740Abstract: A radiofrequency circuit embedded onboard a satellite, data being transmitted on several channels by radiofrequency signals, includes a channel corresponding to a frequency band, and a succession of gains being able to be associated with a channel so as to generate the radiofrequency signal to be transmitted on the latter. The succession includes at least one variable-gain amplifier, the radiofrequency signals thus generated being multiplexed by a multiplexer composed of bandpass filters. The successions of gains comprise a power load arranged so as to dissipate the power of signals which is reflected by the filters of the multiplexer, said load including means for generating an alarm signal representative of the power level of the reflected signals, the alarm signal being used to control the gain of the variable-gain amplifier. The subject of the invention is also a power load.Type: ApplicationFiled: March 4, 2011Publication date: March 8, 2012Applicant: THALESInventors: Emile Tonello, Damien Pacaud, Jean-Claude Lacombe
-
Patent number: 6960969Abstract: A resonant cavity device comprises a waveguide body having a lateral wall extending in a longitudinal direction, having a first coefficient of thermal expansion, and delimiting a resonant cavity in conjunction with opposite first and second end walls. The first end wall has a second coefficient of thermal expansion lower than the first coefficient and has an internal face fastened to a first assembly comprising at least one main plate having a third coefficient of thermal expansion lower than the first coefficient and dimensions in a plane perpendicular to the longitudinal direction less than but substantially equal to those of the cavity.Type: GrantFiled: March 29, 2004Date of Patent: November 1, 2005Assignee: AlcatelInventors: Bertrand Brevart, Frédéric Rouchaud, Michel Blanquet, Damien Pacaud
-
Publication number: 20040212463Abstract: A resonant cavity device comprises a waveguide body having a lateral wall extending in a longitudinal direction, having a first coefficient of thermal expansion, and delimiting a resonant cavity in conjunction with opposite first and second end walls. The first end wall has a second coefficient of thermal expansion lower than the first coefficient and has an internal face fastened to a first assembly comprising at least one main plate having a third coefficient of thermal expansion lower than the first coefficient and dimensions in a plane perpendicular to the longitudinal direction less than but substantially equal to those of the cavity.Type: ApplicationFiled: March 29, 2004Publication date: October 28, 2004Applicant: ALCATELInventors: Bertrand Brevart, Frederic Rouchaud, Michel Blanquet, Damien Pacaud