Patents by Inventor Carl Fredrik LINDGREN

Carl Fredrik LINDGREN 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).

  • Active antenna system
    Patent number: 9252483
    Abstract: An improved active antenna system is distinguished inter alia by the following features: comprising a first antenna group (5) which is provided for transmitting and receiving operation, comprising a second antenna group (10) which is provided for receiving operation, the two antenna groups (5, 10) are arranged above one another, and the supply network (N11, N12) of the first antenna group (5) has an amplitude distribution which is frequency-dependent, i.e. dependent on a transmitting and a receiving frequency.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 2, 2016
    Assignee: KATHREIN-WERKE KG
    Inventors: Maximilian Gottl, Carl Fredrik Lindgren
  • AKTIVES ANTENNENSYSTEM
    Publication number: 20130342422
    Abstract: An improved active antenna system is distinguished inter alia by the following features: comprising a first antenna group (5) which is provided for transmitting and receiving operation, comprising a second antenna group (10) which is provided for receiving operation, the two antenna groups (5, 10) are arranged above one another, and the supply network (N11, N12) of the first antenna group (5) has an amplitude distribution which is frequency-dependent, i.e. dependent on a transmitting and a receiving frequency.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: KATHREIN-WERKE KG
    Inventors: Maximilian Göttl, Carl Fredrik LINDGREN