Patents by Inventor Ralf Juenemann

Ralf Juenemann 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: 10527714
    Abstract: A calibration device for calibrating an antenna array is provided. The calibration device comprises a transmitter, which is configured for transmitting a first calibration signal to all antennas of the antenna array, resulting in a plurality of received first calibration signals provided by the antenna array to the calibration device. Moreover, the calibration device comprises a receiver, which is configured for receiving a plurality of second calibration signals from the antennas of the antenna array. Finally, the calibration device comprises an antenna characteristic calculator, which is configured for calculating an antenna characteristic of each individual antenna of the antenna array based on the plurality of received first calibration signals and the plurality of received second calibration signals.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: January 7, 2020
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Andreas Genghammer, Ralf Juenemann, Sherif Ahmed, Frank Gumbmann
  • Publication number: 20180136313
    Abstract: A calibration device for calibrating an antenna array is provided. The calibration device comprises a transmitter, which is configured for transmitting a first calibration signal to all antennas of the antenna array, resulting in a plurality of received first calibration signals provided by the antenna array to the calibration device. Moreover, the calibration device comprises a receiver, which is configured for receiving a plurality of second calibration signals from the antennas of the antenna array. Finally, the calibration device comprises an antenna characteristic calculator, which is configured for calculating an antenna characteristic of each individual antenna of the antenna array based on the plurality of received first calibration signals and the plurality of received second calibration signals.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 17, 2018
    Inventors: Andreas GENGHAMMER, Ralf JUENEMANN, Sherif AHMED, Frank GUMBMANN
  • Patent number: 8928345
    Abstract: 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: Grant
    Filed: May 27, 2010
    Date of Patent: January 6, 2015
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
  • Patent number: 8779871
    Abstract: 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: Grant
    Filed: May 14, 2010
    Date of Patent: July 15, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
  • Publication number: 20120068786
    Abstract: 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: Application
    Filed: May 14, 2010
    Publication date: March 22, 2012
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
  • Publication number: 20120038666
    Abstract: 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: Application
    Filed: April 14, 2010
    Publication date: February 16, 2012
    Applicants: TomTec Imaging Systems GmbH, Rohde & Schwarz GmbH & Co. KG
    Inventors: Christian Evers, Gerd Hechtfischer, Andreas Schiessl, Ralf Juenemann, Andreas Paech, Olaf Ostwald, Marcus Schreckenberg, Georg Schummers, Alexander Rossmaith
  • Publication number: 20110187401
    Abstract: 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: Application
    Filed: May 27, 2010
    Publication date: August 4, 2011
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ralf Juenemann, Alexander Bayer, Michael Freissl, Christian Evers
  • Patent number: 7859361
    Abstract: 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: Grant
    Filed: August 6, 2007
    Date of Patent: December 28, 2010
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Christian Evers, Ralf Juenemann, Alexander Bayer, Markus Leipold
  • Publication number: 20090206947
    Abstract: 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: Application
    Filed: August 6, 2007
    Publication date: August 20, 2009
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Christian Evers, Ralf Juenemann, Alexander Bayer, Markus Leipold
  • Patent number: 7183877
    Abstract: The directional coupler (1) in coplanar waveguide technology comprises at least one first directional coupler unit (100) with a first connection (103) for feeding in or guiding out a wave, a second connection (104) for feeding in or guiding out a wave supplied directly from or to the first connection (103), a coupled connection (106) for coupling a fraction of a feeded wave at connection (103)and a termination (105). The first connection (103) is connected to the second connection (104) via a first center conductor (107). The coupled connection (106) is connected to the termination (105) via a second center conductor (108). The center conductors (107,108) are bordered on the outside by ground conductors (110,112).
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: February 27, 2007
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Ralf Juenemann, Wolfgang Cohrs, Juergen Thies, Gerd Hechtfischer
  • Publication number: 20040233014
    Abstract: The directional coupler (1) in coplanar waveguide technology comprises at least one first directional coupler unit (100) with a first connection (103) for feeding in or guiding out a wave, a second connection (104) for feeding in or guiding out a wave supplied directly from or to the first connection (103), a coupled connection (106) for coupling a fraction of a feeded wave at connection (103)and a termination (105). The first connection (103) is connected to the second connection (104) via a first center conductor (107). The coupled connection (106) is connected to the termination (105) via a second center conductor (108). The center conductors (107,108) are bordered on the outside by ground conductors (110,112).
    Type: Application
    Filed: March 12, 2004
    Publication date: November 25, 2004
    Inventors: Ralf Juenemann, Wolfgang Cohrs, Juergen Thies, Gerd Hechtfischer