Patents by Inventor Bjorn G. Forsberg

Bjorn G. Forsberg 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).

  • Selective power combiner using phase shifters
    Patent number: 5083094
    Abstract: A circuit for selecting and combining power signals of a pair of parallel amplifiers (3,4) using phase shifters (5,6) having fixed phase. Either amplifier (3,4) may be selected to produce a power signal of power P at the circuit output (9), where P is the power at the output (11,12) of each amplifier (3,4). Alternatively, power from the two amplifiers (3,4) may be combined to produce a signal of power 2P at the circuit output (9). By using a passive circuit to achieve the selection and combination, the use of heavier and less reliable relay switches is avoided.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: January 21, 1992
    Assignee: Space Systems/Loral, Inc.
    Inventor: Bjorn G. Forsberg