Patents by Inventor Christian Evers
Christian Evers 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: 9268018Abstract: The present disclosure provides a method and a corresponding device for extending the illumination of an object under investigation. The object under investigation is illuminated with an electromagnetic microwave signal which is transmitted from a transmission antenna. The microwave signal reflected from the object under investigation is received by at least one reception antenna. An image of the object under investigation is reconstructed through synthetic focusing of the reflected microwave signal.Type: GrantFiled: November 4, 2011Date of Patent: February 23, 2016Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Sherif Ahmed, Christian Evers
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Patent number: 9265151Abstract: A printed-circuit board arrangement electrically connects the at least one transmitter and/or receiver unit with at least one antenna element, whereas the at least one transmitter and/or receiver unit and the at least one antenna element are at least partially integrated into the printed-circuit board arrangement. In this context, the printed-circuit board arrangement includes different printed circuit boards, which are mechanically connected to one another in a rigid manner. A first part of the printed-circuit board arrangement is formed by at least one printed-circuit board, of which the substrate is made from a first material which is suitable for high-frequency, and a second part of the printed-circuit board arrangement is formed by at least one printed-circuit board, of which the substrate is made from a second material different from the first material, which is still sufficiently suitable for a low frequency and/or for a direct-voltage range.Type: GrantFiled: February 2, 2012Date of Patent: February 16, 2016Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventors: Ralf Jünemann, Christian Evers, Andreas Schiessl, Sherif Sayed Ahmed, Gerd Hechtfischer
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Patent number: 9091724Abstract: A measuring device provides a synthesizer device, at least two controlling devices and at least two controlled oscillators. The synthesizer device contains at least one direct digital synthesizer and generates at least two signals of known phase ratio. Signals generated by the synthesizer device form reference signals of at least one controlling device. Signals formed by the controlling devices control the controlled oscillators. The measuring device contains only frequency splitters, which divide by integer division factors.Type: GrantFiled: February 10, 2010Date of Patent: July 28, 2015Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Georg Ortler, Christian Evers, Markus Freidhof
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Patent number: 9081035Abstract: A measuring device used for registering a test signal originating from a circuit structure applied to a wafer. The measuring device provides at least one test probe and at least one test transformer. The at least one test transformer is connected to the at least one test probe in an electrically conductive manner. In this context, the test transformer is arranged on the test probe.Type: GrantFiled: January 20, 2011Date of Patent: July 14, 2015Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Andrea Deutinger, Gerd Hechtfischer, Christian Evers
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Patent number: 8928345Abstract: A test coupler for supplying a device under test with test signals contains a first coaxial connector, a waveguide port, and a first strip conductor. Test signals of a lower frequency range are supplied to the first coaxial connector. Test signals of an upper frequency range are supplied to the waveguide port. The test coupler guides the test signals on the first strip conductor to the device under test.Type: GrantFiled: May 27, 2010Date of Patent: January 6, 2015Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
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Patent number: 8779871Abstract: A coupler comprises a first line and a second line in each case with two connectors. The lines run in spatial proximity and are coupled. A first connector of the first line and a first connector of the second line are disposed in spatial proximity. A second connector of the first line and a second connector of the second line are disposed in spatial proximity. A signal does not couple or couples only with a high attenuation from the first connector of the first line to the first connector of the second line. The signal is split, in particular, at the design frequency, into largely identical parts to the second connector of the first line and the second connector of the second line. The first line and the second line in this context are strip conductors.Type: GrantFiled: May 14, 2010Date of Patent: July 15, 2014Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
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Publication number: 20140125517Abstract: The present disclosure provides a method and a corresponding device for extending the illumination of an object under investigation. The object under investigation is illuminated with an electromagnetic microwave signal which is transmitted from a transmission antenna. The microwave signal reflected from the object under investigation is received by at least one reception antenna. An image of the object under investigation is reconstructed through synthetic focusing of the reflected microwave signal.Type: ApplicationFiled: November 4, 2011Publication date: May 8, 2014Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Sherif Ahmed, Christian Evers
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Publication number: 20140063754Abstract: A printed-circuit board arrangement electrically connects the at least one transmitter and/or receiver unit with at least one antenna element, whereas the at least one transmitter and/or receiver unit and the at least one antenna element are at least partially integrated into the printed-circuit board arrangement. In this context, the printed-circuit board arrangement includes different printed circuit boards, which are mechanically connected to one another in a rigid manner. A first part of the printed-circuit board arrangement is formed by at least one printed-circuit board, of which the substrate is made from a first material which is suitable for high-frequency, and a second part of the printed-circuit board arrangement is formed by at least one printed-circuit board, of which the substrate is made from a second material different from the first material, which is still sufficiently suitable for a low frequency and/or for a direct-voltage range.Type: ApplicationFiled: February 2, 2012Publication date: March 6, 2014Applicant: ROHDE & SCHWARZ GMBH & CO. KGInventors: Ralf Jünemann, Christian Evers, Andreas Schiessl, Sherif Sayed Ahmed, Gerd Hechtfischer
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Publication number: 20130076487Abstract: A person-identification system which includes a scanner unit, which scans a person to be identified by an electromagnetic radiation. The electromagnetic radiation provides a wavelength in the millimeter range and/or centimeter range. The scanner unit prepares a three-dimensional image of body geometries of the person to be identified as test data in a storage unit. The person-identification system further provides a processing unit which processes the test data and extracts biometric features necessary for the identification and compares these with biometric features which are stored in at least one further storage unit.Type: ApplicationFiled: March 22, 2011Publication date: March 28, 2013Applicant: Rohde & Schwarz GmbH & Co. KGInventor: Christian Evers
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Publication number: 20130054169Abstract: A method for determining the place of origin of a passive intermodulation product excites a distributed device under test with two first excitation signals (x1(t),x2(t), each with a single spectral line, of which the frequencies (f1,f2) provide a frequency spacing relative to one another. Following this, the phase (?IM3Meas) of a first passive intermodulation product generated at the place of origin in the distributed device under test from the first excitation signals ((x1(t), x2(t)) by nonlinear distortion is measured, and the delay time of the first passive intermodulation product from the place of origin to the measuring device is calculated from the measured phase (x1(t),x2(t)) and the frequency (2·f1?f2) of the first passive intermodulation product. Finally, the place of origin of the passive intermodulation product is determined from the delay time and the topology of the distributed device under test.Type: ApplicationFiled: July 29, 2011Publication date: February 28, 2013Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Steffen Neidhardt, Christian Evers
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Publication number: 20130002284Abstract: A measuring device used for registering a test signal originating from a circuit structure applied to a wafer. The measuring device provides at least one test probe and at least one test transformer. The at least one test transformer is connected to the at least one test probe in an electrically conductive manner. In this context, the test transformer is arranged on the test probe.Type: ApplicationFiled: January 20, 2011Publication date: January 3, 2013Applicant: ROHDE & SCHWARZ GMBH & CO. KGInventors: Andrea Deutinger, Gerd Hechtfischer, Christian Evers
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Publication number: 20120105049Abstract: A measuring device provides a synthesizer device, at least two controlling devices and at least two controlled oscillators. The synthesizer device contains at least one direct digital synthesizer and generates at least two signals of known phase ratio. Signals generated by the synthesizer device form reference signals of at least one controlling device. Signals formed by the controlling devices control the controlled oscillators. The measuring device contains only frequency splitters, which divide by integer division factors.Type: ApplicationFiled: February 10, 2010Publication date: May 3, 2012Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Georg Ortler, Christian Evers, Markus Freidhof
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Publication number: 20120068786Abstract: A coupler comprises a first line and a second line in each case with two connectors. The lines run in spatial proximity and are coupled. A first connector of the first line and a first connector of the second line are disposed in spatial proximity. A second connector of the first line and a second connector of the second line are disposed in spatial proximity. A signal does not couple or couples only with a high attenuation from the first connector of the first line to the first connector of the second line. The signal is split, in particular, at the design frequency, into largely identical parts to the second connector of the first line and the second connector of the second line. The first line and the second line in this context are strip conductors.Type: ApplicationFiled: May 14, 2010Publication date: March 22, 2012Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
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Publication number: 20120038666Abstract: A method for detecting and displaying image data of at least one object with reference to a human or animal body is provided with the following method steps: detecting a spatial structure and position of the object through a physical space detection and generating image data of the object on the basis of this detection, projecting the image data onto an artificial body, which represents the human or animal body, and displaying the object using the image data projected onto the artificial body.Type: ApplicationFiled: April 14, 2010Publication date: February 16, 2012Applicants: TomTec Imaging Systems GmbH, Rohde & Schwarz GmbH & Co. KGInventors: Christian Evers, Gerd Hechtfischer, Andreas Schiessl, Ralf Juenemann, Andreas Paech, Olaf Ostwald, Marcus Schreckenberg, Georg Schummers, Alexander Rossmaith
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Publication number: 20110187401Abstract: A test coupler for supplying a device under test with test signals contains a first coaxial connector, a waveguide port, and a first strip conductor. Test signals of a lower frequency range are supplied to the first coaxial connector. Test signals of an upper frequency range are supplied to the waveguide port. The test coupler guides the test signals on the first strip conductor to the device under test.Type: ApplicationFiled: May 27, 2010Publication date: August 4, 2011Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
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Publication number: 20110077509Abstract: A measuring device provides a control device, a test-signal transmitter, a test-signal receiver and a test probe. The test probe contains at least one coaxial line. The control device controls the test-signal transmitter in such a manner that it transmits a test signal by means of the coaxial line into a given location of the tissue. The test signal is scattered by the tissue. The control device controls the test-signal receiver in such a manner that it receives the scattered test signal. The control device evaluates the received test signal. The test probe is designed in such a manner that a tissue specimen can be removed by it at the given location of the tissue.Type: ApplicationFiled: June 2, 2009Publication date: March 31, 2011Applicant: ROHDE & SCHWARZ GMBH & CO. KGInventors: Martin Leibfritz, Christian Evers
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Patent number: 7859361Abstract: In a directional coupler with two coupled lines arranged in a flat chamber of an enclosed metal housing within the coupling region side-by-side in the longitudinal direction and at a spacing distance from one another, of which the ends are connected to connecting ports attached at the sides of the metal housing, these coupled lines include flat, sheet-metal strip conductors, which are arranged within the coupling region with their broad sides facing towards one another side-by-side at a spacing distance and held by several support elements made of insulating material in a cantilever manner at a spacing distance from the opposing internal walls of the flat metal-housing chamber within the latter. In this context, at least one strip conductor is curved relative to the opposing strip conductor in such a manner that the spacing distance of the strip conductors in coupling region increases starting from the beginning of the coupling region approximately exponentially up to the end of the coupling region.Type: GrantFiled: August 6, 2007Date of Patent: December 28, 2010Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Christian Evers, Ralf Juenemann, Alexander Bayer, Markus Leipold
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Patent number: 7772827Abstract: A method for operating a measuring device, in particular, a vectorial network analyzer, which can be connected via at least two ports to a device under test, with excitation units assigned to each port, wherein each excitation unit provides a signal generator, with which the assigned port can be supplied with an excitation signal, provides the following procedural stages: a measurement at measuring positions of the actual phase offset between the excitation signals output at the ports; and a variation of the frequency of at least one of the two signal generators during a correction interval so that a specified set phase offset is achieved at reference positions between the excitation signals output at the ports.Type: GrantFiled: June 19, 2006Date of Patent: August 10, 2010Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Christian Evers, Thilo Bednorz, Georg Ortler
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Publication number: 20090206947Abstract: In a directional coupler with two coupled lines arranged in a flat chamber of an enclosed metal housing within the coupling region side-by-side in the longitudinal direction and at a spacing distance from one another, of which the ends are connected to connecting ports attached at the sides of the metal housing, these coupled lines include flat, sheet-metal strip conductors, which are arranged within the coupling region with their broad sides facing towards one another side-by-side at a spacing distance and held by several support elements made of insulating material in a cantilever manner at a spacing distance from the opposing internal walls of the flat metal-housing chamber within the latter. In this context, at least one strip conductor is curved relative to the opposing strip conductor in such a manner that the spacing distance of the strip conductors in coupling region increases starting from the beginning of the coupling region approximately exponentially up to the end of the coupling region.Type: ApplicationFiled: August 6, 2007Publication date: August 20, 2009Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Christian Evers, Ralf Juenemann, Alexander Bayer, Markus Leipold
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Patent number: PP20621Abstract: Floribunda rose plant having large ball shaped, bright red flowers and healthy foliage.Type: GrantFiled: December 12, 2007Date of Patent: December 29, 2009Assignee: Rosen Tantau Mathias Tantau NachfolgerInventor: Christian Evers