Patents by Inventor George Kakas

George Kakas 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).

  • Lossy antenna arrays with frequency-independent beamwidth
    Patent number: 11095031
    Abstract: An ultra wide band (UWB) antenna includes: (i) an array of antenna elements spaced from a central axis; and (ii) a network of lossy feedlines respectively communicatively coupled to the array of antenna elements. Each lossy feedline is periodically loaded with a resistance that is capacitively coupled to ground. Respective lengths of each lossy feedlines are selected to increase with an increase in distance from the central axis to achieve frequency independence of a radiated beamwidth from the UWB antenna.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 17, 2021
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Carl Pfeiffer, Thomas Steffen, George Kakas
  • Lossy Antenna Arrays with Frequency-Independent Beamwidth
    Publication number: 20200259259
    Abstract: An ultra wide band (UWB) antenna includes: (i) an array of antenna elements spaced from a central axis; and (ii) a network of lossy feedlines respectively communicatively coupled to the array of antenna elements. Each lossy feedline is periodically loaded with a resistance that is capacitively coupled to ground. Respective lengths of each lossy feedlines are selected to increase with an increase in distance from the central axis to achieve frequency independence of a radiated beamwidth from the UWB antenna.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 13, 2020
    Inventors: Carl Pfeiffer, Thomas Steffen, George Kakas