Patents by Inventor Richard J. Ouwerkerk

Richard J. Ouwerkerk 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).

  • Self calibrating radar system
    Patent number: 5841394
    Abstract: A radar system is described, which includes a built-in calibration/fault detection apparatus that enables rapid and easy calibration of the system. The system includes a long extrusion (70) forming a feed waveguide (90), a calibration waveguide (92), and a base (94) of a horn antenna. A linear array of TR (transmit/receive) units (42) are mounted on the extrusion, with each having a feed probe (100) that receives a feed signal, changes its phase and amplifies it, and delivers it through a monopole (110) to the horn. The calibration waveguide is coupled through holes (130) to the horn, with a calibration pickup (132) mounted at the end of the calibration waveguide. During calibration, one TR unit at a time is energized, and its output is detected by the calibration pickup to check the amplitude and phase of the TR unit.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: November 24, 1998
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: William G. Sterns, David M. Cook, Richard J. Ouwerkerk