Patents by Inventor Mark Peter Heijden

Mark Peter Heijden 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: 8228125
    Abstract: An electronic circuit has an amplifier with an amplifying transistor and a cascode transistor. A capacitive voltage divider applies a fraction of an RF signal swing from the drain of the cascode transistor to the gate of the cascode transistor, the fraction being determined by a ratio between capacitance values. In addition a bias voltage supply circuit is provided. The bias voltage supply circuit is configured to define a relation between an average gate voltage of the cascode transistor and an average drain supply voltage at the drain of the cascode transistor. This relation increases the average gate voltage with increasing average drain voltage, and the relation provides a non zero average gate voltage when extrapolated to zero average drain supply voltage.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 24, 2012
    Assignee: ST-Ericsson SA
    Inventors: Mark Peter Heijden, Dominicus Leenaerts, Melina Apostolidou