Patents by Inventor James David Ingram

James David Ingram 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).

  • Method for making an antenna structure
    Patent number: 7836577
    Abstract: A method for making a feed structure for an antenna may include providing a polarizer body having a polarizer sidewall extending longitudinally between spaced apart ends. A portion of the polarizer sidewall is deformed to provide at least one polarizing structure that extends radially inwardly along an interior of the polarizer sidewall relative to adjacent portions of the polarizer sidewall. The method thus can be utilized to produce an antenna structure.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: November 23, 2010
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Steven Szu-Cherng Kuo, Andrew Lee Roberts, James David Ingram, Imants Eglitis, Henry Chang
  • Method for Making an Antenna Structure
    Publication number: 20080238798
    Abstract: A method for making a feed structure for an antenna may include providing a polarizer body having a polarizer sidewall extending longitudinally between spaced apart ends. A portion of the polarizer sidewall is deformed to provide at least one polarizing structure that extends radially inwardly along an interior of the polarizer sidewall relative to adjacent portions of the polarizer sidewall. The method thus can be utilized to produce an antenna structure.
    Type: Application
    Filed: May 6, 2008
    Publication date: October 2, 2008
    Inventors: Steven Szu-Cherng Kuo, Andrew Lee Roberts, James David Ingram, Imants Eglitis, Henry Chang
  • Method for making an antenna structure
    Patent number: 7373712
    Abstract: A method for making a feed structure for an antenna may include providing a polarizer body having a polarizer sidewall extending longitudinally between spaced apart ends. A portion of the polarizer sidewall is deformed to provide at least one polarizing structure that extends radially inwardly along an interior of the polarizer sidewall relative to adjacent portions of the polarizer sidewall. The method thus can be utilized to produce an antenna structure.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: May 20, 2008
    Assignee: Northrop Grumman Corporation
    Inventors: Steven Szu-Cherng Kuo, Andrew Lee Roberts, James David Ingram, Imants Eglitis, Henry Chang
  • Feed structure and antenna structures incorporating such feed structures
    Patent number: 7034774
    Abstract: A polarizer for an antenna and antenna structures are disclosed. According to one aspect a polarizer includes a generally cylindrical sidewall portion extending between spaced apart end portions. At least one polarizing structure extends substantially continuously along an interior of the sidewall portion and extends radially inwardly relative to the sidewall portion according to a first radius in a longitudinal direction and a second radius in a transverse direction. The polarizer can be implemented as part of an antenna structure, which further can be integrated with a transition stage and/or a horn.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: April 25, 2006
    Assignee: Northrop Grumman Corporation
    Inventors: Steven Szu-Cherng Kuo, Andrew Lee Roberts, James David Ingram, Imants Eglitis, Henry Chang