Patents by Inventor Lars E. Grimsrud

Lars E. Grimsrud 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).

  • Cavity backed dipole antenna
    Patent number: 9748657
    Abstract: The invention is directed to a cavity backed dipole antenna that has at least a reduced length relative to a reference dipole antenna at the same first frequency of operation and, in some embodiments, an improved bandwidth relative to a reference dipole antenna. In one embodiment, the cavity backed dipole antenna comprises a driven bowtie dipole antenna and a parasitic folded sheet dipole antenna with the driven bowtie dipole antenna located with a boundary defined by the parasitic folded sheet dipole antenna.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 29, 2017
    Assignee: FIRST RF Corp.
    Inventors: Lars E. Grimsrud, Brandon J. Aldecoa