Patents by Inventor Christopher D. Nantista

Christopher D. Nantista 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).

  • RF waveguide phase-directed power combiners
    Patent number: 9640851
    Abstract: High power RF phase-directed power combiners include magic H hybrid and/or superhybrid circuits oriented in orthogonal H-planes and connected using E-plane bends and/or twists to produce compact 3D waveguide circuits, including 8×8 and 16×16 combiners. Using phase control at the input ports, RF power can be directed to a single output port, enabling fast switching between output ports for applications such as multi-angle radiation therapy.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: May 2, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Christopher D. Nantista, Valery A. Dolgashev, Sami G. Tantawi
  • RF Waveguide Phase-Directed Power Combiners
    Publication number: 20150340752
    Abstract: High power RF phase-directed power combiners include magic H hybrid and/or superhybrid circuits oriented in orthogonal H-planes and connected using E-plane bends and/or twists to produce compact 3D waveguide circuits, including 8×8 and 16×16 combiners. Using phase control at the input ports, RF power can be directed to a single output port, enabling fast switching between output ports for applications such as multi-angle radiation therapy.
    Type: Application
    Filed: May 26, 2015
    Publication date: November 26, 2015
    Inventors: Christopher D. Nantista, Valery A. Dolgashev, Sami G. Tantawi