Patents by Inventor Douglas Scott Stetson

Douglas Scott Stetson 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).

  • Zig-zag antenna array and system for polarization control
    Patent number: 11888234
    Abstract: An example antenna system includes a zig-zag antenna array. The zig-zag antenna array includes a stack of conductive disks and at least one crossed zig-zag antenna extending through the stack of conductive disks. The at least one crossed zig-zag antenna includes an element pair that includes a plurality of crossed zig-zag antenna segment pairs between the stack of conductive disks. A respective crossed zig-zag antenna segment pair extends between a respective lower conductive disk and a respective upper conductive disk. The example antenna system further includes a control circuit coupled to the element pair to switch the crossed zig-zag antenna segment pairs to drive the crossed zig-zag antenna segment pairs to transmit or receive radio frequency (RF) waves with polarization states that include vertical, horizontal, elliptical, or circular polarization.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: January 30, 2024
    Assignee: FreeFall Aerospace, Inc.
    Inventors: Christopher Kidd Walker, Juan Carlos Lopez-Tonazzi, Stefan Neal O'Dougherty, Douglas Scott Stetson
  • ZIG-ZAG ANTENNA ARRAY AND SYSTEM FOR POLARIZATION CONTROL
    Publication number: 20220263250
    Abstract: An example antenna system includes a zig-zag antenna array. The zig-zag antenna array includes a stack of conductive disks and at least one crossed zig-zag antenna extending through the stack of conductive disks. The at least one crossed zig-zag antenna includes an element pair that includes a plurality of crossed zig-zag antenna segment pairs between the stack of conductive disks. A respective crossed zig-zag antenna segment pair extends between a respective lower conductive disk and a respective upper conductive disk. The example antenna system further includes a control circuit coupled to the element pair to switch the crossed zig-zag antenna segment pairs to drive the crossed zig-zag antenna segment pairs to transmit or receive radio frequency (RF) waves with polarization states that include vertical, horizontal, elliptical, or circular polarization.
    Type: Application
    Filed: July 16, 2020
    Publication date: August 18, 2022
    Inventors: Christopher Kidd Walker, Juan Carlos Lopez-Tonazzi, Stefan Neal O'Dougherty, Douglas Scott Stetson