Patents by Inventor Ike Chang

Ike Chang 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).

  • Active electronically scanned array antenna for satellite communications
    Patent number: 8334809
    Abstract: An electronically scanned array antenna. The novel antenna includes a first planar array of antenna elements and one or more side planar arrays of antenna elements, each side array adjacent to the first array and tilted at a predetermined angle relative to the first array. In an illustrative embodiment, the antenna also includes a plurality of transmit/receive modules, each module coupled to one antenna element. Each transmit/receive module includes phase shifters for varying the relative phases of the antenna elements to form a desired overall beam pattern, and a low noise amplifier and high power amplifier for amplifying signals received and transmitted by the antenna element, respectively. In an illustrative embodiment, a processor provides individual phase and channel enable control signals for independently controlling the phase shifters and amplifiers, respectively, of each module.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: December 18, 2012
    Assignee: Raytheon Company
    Inventors: Richard W. Nichols, James S. Mason, Gilbert M. Shows, Joel C. Roper, Raymond D. Eppich, Gustavo A. Burnum, Ike Chang
  • Active electronically scanned array antenna for satellite communications
    Publication number: 20100099370
    Abstract: An electronically scanned array antenna. The novel antenna includes a first planar array of antenna elements and one or more side planar arrays of antenna elements, each side array adjacent to the first array and tilted at a predetermined angle relative to the first array. In an illustrative embodiment, the antenna also includes a plurality of transmit/receive modules, each module coupled to one antenna element. Each transmit/receive module includes phase shifters for varying the relative phases of the antenna elements to form a desired overall beam pattern, and a low noise amplifier and high power amplifier for amplifying signals received and transmitted by the antenna element, respectively. In an illustrative embodiment, a processor provides individual phase and channel enable control signals for independently controlling the phase shifters and amplifiers, respectively, of each module.
    Type: Application
    Filed: October 22, 2008
    Publication date: April 22, 2010
    Inventors: Richard W. Nichols, James S. Mason, Gilbert M. Shows, Joel C. Roper, Raymond D. Eppich, Gustavo A. Burnum, Ike Chang