Patents by Inventor Bradley Robert SCHAFFER

Bradley Robert SCHAFFER 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).

  • Multiband linear waveguide feed network
    Patent number: 11177580
    Abstract: A linear multiband waveguide feed network device, which includes a first section, a second section, a third section and an inverse-ridge receive (Rx)-reject filter. The second section is coupled to the first section via a first split-plane. The third section is coupled to the second section via a second split-plane. The inverse-ridge Rx-reject filter is implemented as a first half-portion and a second half-portion. The first half-portion and the second half-portion are implemented in the second section and the third section, respectively. The first split-plane and the second split-plane are on a zero-current region of the device.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: November 16, 2021
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Jason Stewart Wrigley, Bradley Robert Schaffer
  • MULTIBAND LINEAR WAVEGUIDE FEED NETWORK
    Publication number: 20200144731
    Abstract: A linear multiband waveguide feed network device, which includes a first section, a second section, a third section and an inverse-ridge receive (Rx)-reject filter. The second section is coupled to the first section via a first split-plane. The third section is coupled to the second section via a second split-plane. The inverse-ridge Rx-reject filter is implemented as a first half-portion and a second half-portion. The first half-portion and the second half-portion are implemented in the second section and the third section, respectively. The first split-plane and the second split-plane are on a zero-current region of the device.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Inventors: Jason Stewart WRIGLEY, Bradley Robert SCHAFFER