Patents by Inventor Ulrich Mahr
Ulrich Mahr 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).
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Patent number: 11539151Abstract: A circuit arrangement having two interconnected high-frequency components, namely a first component and a second component, is described. A connection for transferring high-frequency signals is arranged between the first component and the second component. The connection includes at least one inner conductor, which is at least partially enclosed by an outer conductor. The inner conductor is connected to the first component and to the second component in order to transfer high-frequency signals. The second component includes a contact surface on a connecting surface and the inner conductor is pressed using a pressure force onto the contact surface, to establish a high-frequency connection between the first component and the second component.Type: GrantFiled: June 22, 2020Date of Patent: December 27, 2022Inventors: Christian Arnold, Tobias Kässer, Michael Franz, Tobias Janocha, Andre Berger, Ralf Kröner, Ulrich Mahr, Benjamin Falk
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Patent number: 10992272Abstract: A high-frequency module can be used in communication satellites. The high-frequency module contains an electronic unit and a housing. The housing at least partially encloses the electronic unit, and the electronic unit is arranged at least partially in an interior space of the housing. An internal connector is arranged on the housing, which is coupled to the electronic unit such that electrical signals can be transmitted between the electronic unit and the internal connector. The internal connector is constructed integrally with at least a part of the housing. This allows a thermo-mechanical stress on the electronic unit to be reduced.Type: GrantFiled: August 29, 2019Date of Patent: April 27, 2021Assignee: Tesat-Spacecom GmbH & Co. KGInventors: Christian Arnold, Tobias Janocha, Ulrich Mahr, Benjamin Falk
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Publication number: 20200412036Abstract: A circuit arrangement having two interconnected high-frequency components, namely a first component and a second component, is described. A connection for transferring high-frequency signals is arranged between the first component and the second component. The connection includes at least one inner conductor, which is at least partially enclosed by an outer conductor. The inner conductor is connected to the first component and to the second component in order to transfer high-frequency signals. The second component includes a contact surface on a connecting surface and the inner conductor is pressed using a pressure force onto the contact surface, to establish a high-frequency connection between the first component and the second component.Type: ApplicationFiled: June 22, 2020Publication date: December 31, 2020Applicant: Tesat-Spacecom GmbH & Co. KGInventors: Christian Arnold, Tobias Kässer, Michael Franz, Tobias Janocha, Andre Berger, Ralf Kröner, Ulrich Mahr, Benjamin Falk
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Publication number: 20200162045Abstract: A high-frequency module can be used in communication satellites. The high-frequency module contains an electronic unit and a housing. The housing at least partially encloses the electronic unit, and the electronic unit is arranged at least partially in an interior space of the housing. An internal connector is arranged on the housing, which is coupled to the electronic unit such that electrical signals can be transmitted between the electronic unit and the internal connector. The internal connector is constructed integrally with at least a part of the housing. This allows a thermo-mechanical stress on the electronic unit to be reduced.Type: ApplicationFiled: August 29, 2019Publication date: May 21, 2020Inventors: Christian Arnold, Tobias Janocha, Ulrich Mahr, Benjamin Falk
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Patent number: 8367231Abstract: The present invention relates to a polymer electrolyte membrane for fuel cells, comprising a polymer matrix of at least one basic polymer and one or more doping agents, wherein particles containing ionogenic groups and having a mean particle diameter in the nanometer range are embedded in the polymer matrix and the particles containing ionogenic groups are distributed homogeneously in the polymer matrix in a concentration of less than 50% relative to the weight of the polymer matrix, as well as to the production and use of same, especially in high-temperature fuel cells.Type: GrantFiled: September 8, 2009Date of Patent: February 5, 2013Assignees: Elcomax Membranes GmbH, Rhein Chemie Rheinau GmbH, Lanxess Deutschland GmbHInventors: Annette Reiche, Dieter Melzner, Ulrich Mähr, Oliver Gronwald, Werner Obrecht, Thomas Früh, Torsten Ziser
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Patent number: 8283998Abstract: An antenna feed device (100) having a first waveguide (102) and a second waveguide (104) separated from the first waveguide (102), each of which is assigned to feed one polarization of a dedicated antenna and each of said waveguides exhibit an overall L-shape form where at least one section of the L-shape of each waveguide is in parallel to the other, both having respectively a first (106) and a second (108) antenna end ending in one plane for connection to an ortho-mode transducer associated with the antenna, while the other sections of the two L-shape waveguides extend in opposite directions, having respectively a first (110) and a second (112) radio end, each of which ends with a single waveguide port for connection to a radio equipment and the waveguides arrangement yields an overall compact T-shape interconnection of the antenna and the radios dedicated to the orthogonal polarizations.Type: GrantFiled: February 1, 2007Date of Patent: October 9, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Uwe Rosenberg, Ulrich Mahr, Jurgen Ebinger
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Patent number: 8101315Abstract: The invention relates to hybrid membranes that are composed of an organic polymer and an inorganic polymer, a method for producing hybrid membranes, and the use of said hybrid membranes in polymer electrolyte membrane fuel cells. The inventive hybrid membranes comprise at least one alkaline organic polymer and at least one inorganic polymer. Said polymers are blended together at a molecular level. The inorganic polymer is formed from at least one precursor monomer when the membrane is produced. The disclosed membranes are characterized in that the same are provided with high absorptivity for doping agents, have a high degree of mechanical and thermal stability in both an undoped and doped state, and feature permanently high proton conductivity.Type: GrantFiled: September 8, 2008Date of Patent: January 24, 2012Assignee: Elcomax Membranes GmbHInventors: Oliver Gronwald, Dieter Melzner, Ulrich Mahr, Annette Reiche
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Patent number: 7978020Abstract: A junction (300) for connecting two waveguides having an angular offset between longitudinal symmetry axes of their cross-sections and a first linear offset of the center axes of the waveguides. The junction (300) comprises at least a first and a second transformer sections (202, 206) both having said first angular offset between longitudinal symmetry axes of their cross-sections and said first linear offset of their center axes, wherein each of said transformer sections (202, 206) has one protruded ridge (204, 208) on broad walls, wherein the first ridge (204) is mainly situated outside the cross section of the second transformer section 206 and the second ridge (208) is mainly situated outside the cross section of the first transformer section (202).Type: GrantFiled: March 27, 2006Date of Patent: July 12, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Uwe Rosenberg, Ulrich Mahr
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Patent number: 7956700Abstract: A junction (100) for connecting two waveguides (102, 104) having a first angular offset (?) between longitudinal symmetry axes of their cross-sections, said junction (100) comprising a first interface and a second interlace for connecting said waveguides (102, 104). The junction further comprises at least a first transformer section (106) and a second transformer section (108), both having cross-sections of substantially rectangular shape, and both having said first angular offset (?) between longitudinal symmetry axes of their cross-sections. Each of said transformer sections (106, 108) has two protruded ridges (202, 204, 206, 208) on its opposite walls.Type: GrantFiled: July 26, 2006Date of Patent: June 7, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Uwe Rosenberg, Ulrich Mahr
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Patent number: 7808337Abstract: A junction for connecting two waveguides having substantially a 90-degree angular offset between longitudinal symmetry axes of their cross-sections. The junction has a first interface and a second interface for connecting the waveguides, and at least a first transformer section and a second transformer section, both having cross-sections of substantially rectangular shape, and both having the 90-degree angular offset between longitudinal symmetry axes of their cross-sections. The first and second transformer sections are connected such that a T-shape connection is formed and the first transformer section has a first protruded ridge on its broad wall and the second transformer section has a second protruded ridge on its broad wall. The broad wall with the second ridge is connected to the top narrow wall of the first transformer section and the ridges are located such that they overlap.Type: GrantFiled: November 14, 2006Date of Patent: October 5, 2010Assignee: Ericsson ABInventors: Uwe Rosenberg, Ulrich Mahr
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Publication number: 20100134217Abstract: A junction (100) for connecting two waveguides (102, 104) having a first angular offset (?) between longitudinal symmetry axes of their cross-sections, said junction (100) comprising a first interface and a second interlace for connecting said waveguides (102, 104). The junction further comprises at least a first transformer section (106) and a second transformer section (108), both having cross-sections of substantially rectangular shape, and both having said first angular offset (?) between longitudinal symmetry axes of their cross-sections. Each of said transformer sections (106, 108) has two protruded ridges (202, 204, 206, 208) on its opposite walls.Type: ApplicationFiled: July 26, 2006Publication date: June 3, 2010Inventors: Uwe Rosenberg, Ulrich Mahr
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Publication number: 20100068593Abstract: The present invention relates to a polymer electrolyte membrane for fuel cells, comprising a polymer matrix of at least one basic polymer and one or more doping agents, wherein particles containing ionogenic groups and having a mean particle diameter in the nanometer range are embedded in the polymer matrix and the particles containing ionogenic groups are distributed homogeneously in the polymer matrix in a concentration of less than 50% relative to the weight of the polymer matrix, as well as to the production and use of same, especially in high-temperature fuel cells.Type: ApplicationFiled: September 8, 2009Publication date: March 18, 2010Applicants: ELCOMAX MEMBRANES GMBH, LANXESS DEUTSCHLAND GMBH, RHEIN CHEMIE RHEINAU GMBHInventors: Annette Reiche, Dieter Melzner, Ulrich Mähr, Oliver Gronwald, Werner Obrecht, Thomas Früh, Torsten Ziser
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Publication number: 20100066463Abstract: An antenna feed device (100) having a first waveguide (102) and a second waveguide (104) separated from the first waveguide (102), each of which is assigned to feed one polarization of a dedicated antenna and each of said waveguides exhibit an overall L-shape form where at least one section of the L-shape of each waveguide is in parallel to the other, both having respectively a first (106) and a second (108) antenna end ending in one plane for connection to an ortho-mode transducer associated with the antenna, while the other sections of the two L-shape waveguides extend in opposite directions, having respectively a first (110) and a second (112) radio end, each of which ends with a single waveguide port for connection to a radio equipment and the waveguides arrangement yields an overall compact T-shape interconnection of the antenna and the radios dedicated to the orthogonal polarizations.Type: ApplicationFiled: February 1, 2007Publication date: March 18, 2010Inventors: Uwe ROSENBERG, Ulrich Mahr, Jurgen Ebinger
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Patent number: 7655334Abstract: A proton-conducting electrolyte membrane is disclosed, comprising at least one base material and at least one dopant, which is the reaction product of an at least dibasic inorganic acid with an organic compound, comprising one acidic hydroxyl group, or the condensation product of said compound with a polybasic acid. The membrane may be produced by a single step method, which avoids the use of dangerous materials and environmental pollutants. Subsequent doping of the membrane, e.g., in conjunction with assembly of the membrane electrode assembly (MEA) is not excluded. The electrolyte membrane has a high and constant mechanical stability and flexibility, excellent chemical and thermal stability and a high and constant conductivity. The membrane may be used in a fuel cell in a wide temperature range from 50° C. to more than 200° C., for example, whereby the fuel cell has a high and constant power level over the entire temperature range.Type: GrantFiled: November 7, 2002Date of Patent: February 2, 2010Assignee: Volkswagen AGInventors: Dieter Melzner, Suzana Kiel, Ulrich Mahr, Annette Reiche
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Publication number: 20090302971Abstract: An ortho-mode transducer (100) comprising a first part (102) with a first port (106) for connecting a first rectangular waveguide (112) and a second port (108) for connecting a second rectangular waveguide (114). The signals in the two waveguides have orthogonal polarizations. The transducer also comprises a second part (104) with a third port (110)for connecting a common circular waveguide (116) in which the two orthogonal signals can be propagated. Symmetry axes of cross sections of the first and the second waveguides have orthogonal orientation. The first rectangular port (106) has its broad walls perpendicular to the circumference of the common circular waveguide (116) and the second rectangular port (108) has its broad walls alongside the circumference of the common circular waveguide. The first and second ports are connected to the third port in opposite positions via 90-degree bends (118, 120).Type: ApplicationFiled: February 1, 2007Publication date: December 10, 2009Inventors: Uwe Rosenberg, Ulrich Mahr, Jurgen Ebinger
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Publication number: 20090201107Abstract: A junction (300) for connecting two waveguides having an angular offset between longitudinal symmetry axes of their cross-sections and a first linear offset of the center axes of the waveguides. The junction (300) comprises at least a first and a second transformer sections (202, 206) both having said first angular offset between longitudinal symmetry axes of their cross-sections and said first linear offset of their center axes, wherein each of said transformer sections (202, 206) has one protruded ridge (204, 208) on broad walls, wherein the first ridge (204) is mainly situated outside the cross section of the second transformer section 206 and the second ridge (208) is mainly situated outside the cross section of the first transformer section (202).Type: ApplicationFiled: March 27, 2006Publication date: August 13, 2009Inventors: Uwe Rosenberg, Ulrich Mahr
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Publication number: 20090075141Abstract: The invention relates to hybrid membranes that are composed of an organic polymer and an inorganic polymer, a method for producing hybrid membranes, and the use of said hybrid membranes in polymer electrolyte membrane fuel cells. The inventive hybrid membranes comprise at least one alkaline organic polymer and at least one inorganic polymer. Said polymers are blended together at a molecular level. The inorganic polymer is formed from at least one precursor monomer when the membrane is produced. The disclosed membranes are characterized in that the same are provided with high absorptivity for doping agents, have a high degree of mechanical and thermal stability in both an undoped and doped state, and feature permanently high proton conductivity.Type: ApplicationFiled: September 8, 2008Publication date: March 19, 2009Applicant: ELCOMAX MEMBRANES GMBHInventors: Oliver GRONWALD, Dieter MELZNER, Ulrich MAHR, Annette REICHE
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Publication number: 20080238580Abstract: A junction for connecting two waveguides (101, 103) having substantially a 90-degree angular offset between longitudinal symmetry axes of their cross-sections, said junction comprising a first interface (102) and a second interface (104) for connecting said waveguides (101, 103), and further comprising at least a first transformer section (202) and a second transformer section (206), both having cross-sections of substantially rectangular shape, and both having said 90-degree angular offset between longitudinal symmetry axes of their cross-sections, wherein the first and the second transformer sections (202 and 206) are connected in a way that a T-shape connection is formed and the first transformer section (202) has a first protruded ridge (204) on its broad wall (210) and the second transformer section (206) has a second protruded ridge (208) on its broad wall (212), wherein the broad wall (212) with the second ridge (208) is connected to the top narrow wall of the first transformer section (202) and the riType: ApplicationFiled: November 14, 2006Publication date: October 2, 2008Applicant: ERICSSON ABInventors: Uwe Rosenberg, Ulrich Mahr
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Patent number: 7280081Abstract: A parabolic reflector for an antenna has a plurality of concentric annular sections arranged in series from a first annular section nearest a central axis of the reflector to a last annular section defining an outer perimeter of the reflector. Each section has a parabolic reflecting surface between inner and outer perimeters. The sections are configured such that the focal point associated with at least the last section lies inside an internal volume of the reflector and are arranged with respect to each other along the central axis, such that an overall depth of the reflector is substantially minimized. The inner perimeters of all the sections are preferably arranged to lie substantially on a plane which is perpendicular to the central axis. The outer perimeter of each section except the last section is preferably connected with the inner perimeter of the succeeding section by means of an annular strip.Type: GrantFiled: November 13, 2002Date of Patent: October 9, 2007Assignee: Marconi Communications GmbHInventor: Ulrich Mahr
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Publication number: 20050118476Abstract: A proton-conducting electrolyte membrane is disclosed, comprising at least one base material and at least one dopant, which is the reaction product of an at least dibasic inorganic acid with an organic compound, comprising one acidic hydroxyl group, or the condensation product of said compound with a polybasic acid. The membrane may be produced by a single step method, which avoids the use of dangerous materials and environmental pollutants. Subsequent doping of the membrane, e.g., in conjunction with assembly of the membrane electrode assembly (MEA) is not excluded. The electrolyte membrane has a high and constant mechanical stability and flexibility, excellent chemical and thermal stability and a high and constant conductivity. The membrane may be used in a fuel cell in a wide temperature range from 50° C. to more than 200° C., for example, whereby the fuel cell has a high and constant power level over the entire temperature range.Type: ApplicationFiled: November 7, 2002Publication date: June 2, 2005Inventors: Dieter Melzner, Suzana Kiel, Ulrich Mahr, Annette Reiche