Patents by Inventor Ludwig Nielsen

Ludwig Nielsen 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).

  • Portable dual-band antenna
    Patent number: 8791869
    Abstract: An antenna provides two antenna elements, which are connected to one another. The second antenna element can be connected to a radio device. The first antenna element and the second antenna element together form a first antenna part. The second antenna element alone forms a second antenna part. The first antenna element comprises at least in part at least one flexible metal strip. The second antenna element comprises at least in part a flexible corrugated tube.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: July 29, 2014
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Berthold Klos, Dietmar Leugner, Ludwig Nielsen
  • Broadband antenna
    Patent number: 8570232
    Abstract: An antenna comprises a monopole and a dipole. The dipole provides a first antenna element and a second antenna element, which provide a common longitudinal axis with the longitudinal axis of a monopole. The first antenna element of the dipole is connected to the second antenna element of the dipole and to the monopole. The monopole bears the dipole. The antenna further contains a decoupling element, which is disposed between the monopole and the dipole.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Berthold Klos, Dietmar Leugner, Ludwig Nielsen
  • PORTABLE DUAL-BAND ANTENNA
    Publication number: 20110199271
    Abstract: An antenna provides two antenna elements, which are connected to one another. The second antenna element can be connected to a radio device. The first antenna element and the second antenna element together form a first antenna part. The second antenna element alone forms a second antenna part. The first antenna element comprises at least in part at least one flexible metal strip. The second antenna element comprises at least in part a flexible corrugated tube.
    Type: Application
    Filed: June 24, 2009
    Publication date: August 18, 2011
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Berthold Klos, Dietmar Leugner, Ludwig Nielsen
  • BROADBAND ANTENNA
    Publication number: 20110163928
    Abstract: An antenna comprises a monopole and a dipole. The dipole provides a first antenna element and a second antenna element, which provide a common longitudinal axis with the longitudinal axis of a monopole. The first antenna element of the dipole is connected to the second antenna element of the dipole and to the monopole. The monopole bears the dipole. The antenna further contains a decoupling element, which is disposed between the monopole and the dipole.
    Type: Application
    Filed: July 2, 2009
    Publication date: July 7, 2011
    Applicant: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Berthold Klos, Dietmar Leugner, Ludwig Nielsen