Patents by Inventor Dennis J. Blejer

Dennis J. Blejer 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).

  • Tunable multi-band antenna array
    Patent number: 6795021
    Abstract: An antenna element is provided having a stacked patch configuration and having tuning structures by which the antenna element can be tuned at two different frequencies of operation. A plurality of the antenna elements can be combined to provide an antenna array. The antenna array can be provided having one or more surface wave surface wave control structures that isolate respective ones of the antenna elements from other respective ones of the antenna elements. The antenna element and/or the antenna array can be provided having RF feeds that can generate any pre-determined polarization.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 21, 2004
    Assignee: Massachusetts Institute of Technology
    Inventors: Eugene C. Ngai, Paul A. Theophelakes, Richard J. Cotillo, Dennis J. Blejer
  • TUNABLE MULTI-BAND ANTENNA ARRAY
    Publication number: 20030164797
    Abstract: An antenna element is provided having a stacked patch configuration and having tuning structures by which the antenna element can be tuned at two different frequencies of operation. A plurality of the antenna elements can be combined to provide an antenna array. The antenna array can be provided having one or more surface wave surface wave control structures that isolate respective ones of the antenna elements from other respective ones of the antenna elements. The antenna element and/or the antenna array can be provided having RF feeds that can generate any pre-determined polarization.
    Type: Application
    Filed: March 1, 2002
    Publication date: September 4, 2003
    Inventors: Eugene C. Ngai, Paul A. Theophelakes, Richard J. Cotillo, Dennis J. Blejer