Patents by Inventor Bjarne Petersen

Bjarne Petersen 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).

  • Radio frequency (RF) amplifiers with voltage limiting using non-linear feedback
    Patent number: 10218319
    Abstract: Radio Frequency (RF) amplifiers with voltage limiting using non-linear feedback are presented herein. According to one aspect, an RF amplifier comprises an amplifier circuit having an input terminal and an output terminal and a non-linear feedback circuit having an input terminal and an output terminal. The input terminal of the non-linear feedback circuit is connected to the output terminal of the amplifier circuit and the output terminal of the non-linear feedback circuit is connected to the amplifier circuit to reduce the gain of the amplifier circuit when an RF voltage swing present at the input terminal of the non-linear feedback circuit exceeds a predefined threshold. In one embodiment, the output terminal of the non-linear feedback circuit is connected to the input terminal of the amplifier circuit. In another embodiment, the output terminal of the non-linear feedback circuit is connected to a bias circuit of the amplifier circuit.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: February 26, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Lars Sandahl Ubbesen, Bjarne Moller-Jensen, Bjarne Petersen, Søren Deleuran Laursen, Michael Nielsen
  • RADIO FREQUENCY (RF) AMPLIFIERS WITH VOLTAGE LIMITING USING NON-LINEAR FEEDBACK
    Publication number: 20170230012
    Abstract: Radio Frequency (RF) amplifiers with voltage limiting using non-linear feedback are presented herein. According to one aspect, an RF amplifier comprises an amplifier circuit having an input terminal and an output terminal and a non-linear feedback circuit having an input terminal and an output terminal. The input terminal of the non-linear feedback circuit is connected to the output terminal of the amplifier circuit and the output terminal of the non-linear feedback circuit is connected to the amplifier circuit to reduce the gain of the amplifier circuit when an RF voltage swing present at the input terminal of the non-linear feedback circuit exceeds a predefined threshold. In one embodiment, the output terminal of the non-linear feedback circuit is connected to the input terminal of the amplifier circuit. In another embodiment, the output terminal of the non-linear feedback circuit is connected to a bias circuit of the amplifier circuit.
    Type: Application
    Filed: December 5, 2016
    Publication date: August 10, 2017
    Inventors: Lars Sandahl Ubbesen, Bjarne Moller-Jensen, Bjarne Petersen, Søren Deleuran Laursen, Michael Nielsen