Patents by Inventor L. C. N. De Vreede

L. C. N. De Vreede 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).

  • 3-WAY DOHERTY AMPLIFIER WITH MINIMUM OUTPUT NETWORK
    Publication number: 20100315162
    Abstract: A 3-way Doherty amplifier has an amplifier input and an amplifier output. The amplifier has a main stage, a first peak stage and a second peak stage. The amplifier has an input network connecting the amplifier input to the inputs of the stages, and an output network connecting the stages to the amplifier output. The output network implements a phase shift of 90° between the output of the main stage and the amplifier output; a phase shift of 180° between the output of the first peak stage and the amplifier output; and a phase shift of 90° between the third output and the amplifier output.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 16, 2010
    Applicant: NXP B.V.
    Inventors: Radjindrepersad Gajadharsing, W. C. E Neo, M. Pelk, L. C. N. De Vreede, Ji Zhao