Patents by Inventor William K. Grefe

William K. Grefe 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).

  • COLLAPSIBLE DIRECTION FINDING ANTENNA ARRAY FOR SPACE-DISADVANTAGED CYLINDRICAL PLATFORMS
    Publication number: 20230198119
    Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 22, 2023
    Applicant: BAE Systems Information and Electronic Systems Inc.
    Inventors: Alexander D. Johnson, James F. FUNG, William K. Grefe
  • Collapsible direction finding antenna array for space-disadvantaged cylindrical platforms
    Patent number: 11682822
    Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: June 20, 2023
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Alexander D. Johnson, James F. Fung, William K. Grefe
  • Collapsible monopole antenna for space-disadvantaged cylindrical platforms
    Patent number: 11600910
    Abstract: The system for an antenna assembly for use on unmanned underwater vehicles (UUV). The antennas are low-cost, lightweight, single-use, and have a small form factor amenable to use on a micro-UUV. A central post and pivotally attached arms form an antenna (e.g., a monopole) that is lifted via an aerial, kite, or the like, when deployed from the UUV to extend the line of site of the antenna several meters above the surface of the water. In some cases, the antenna may be used on a number of UUVs in a swarm formation.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: March 7, 2023
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Alexander D. Johnson, James F. Fung, William K. Grefe