Patents by Inventor Jaynesh Patel

Jaynesh Patel 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).

  • Nearfield calibration method used for phased array antennas containing tunable phase shifters
    Patent number: 6771216
    Abstract: A method for calibrating a phased array antenna and the calibrated phased array antenna are described herein. In the preferred embodiment of the present invention, the method for calibrating a phased array antenna containing a plurality of electronically tunable phase shifters each of which is coupled to a column of radiating elements includes the steps of: (a) characterizing each of the electronically tunable phase shifters; (b) calculating phase offsets for each column of radiating elements using a nearfield antenna range and the characterized data for each of the electronically tunable phase shifters; and (c) using the calculated phase offsets in a calibration table to adjust the tuning voltage of each of the electronically tunable phase shifters to cause the columns of radiating elements to yield a uniform beam.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: August 3, 2004
    Assignee: Paratex Microwave Inc.
    Inventors: Jaynesh Patel, Cornelis Fredrick du Toit, Vincent G. Karasack
  • Farfield calibration method used for phased array antennas containing tunable phase shifters
    Patent number: 6686873
    Abstract: A method for calibrating a phased array antenna and the calibrated phased array antenna are described herein. In the preferred embodiment of the present invention, the method for calibrating a phased array antenna containing a plurality of electronically tunable phase shifters each of which is coupled to a column of radiating elements includes the steps of: (a) characterizing, without having any prior phase shift versus tuning voltage data, each of the electronically tunable phase shifters; (b) calculating phase offsets for each column of radiating elements using a farfield antenna range and the characterized data for each of the electronically tunable phase shifters; and (c) using the calculated phase offsets in a calibration table to adjust the tuning voltage of each of the electronically tunable phase shifters to cause the columns of radiating elements to yield a uniform beam.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: February 3, 2004
    Assignee: Paratek Microwave, Inc.
    Inventors: Jaynesh Patel, Cornelis Frederick du Toit, Vincent G. Karasack
  • Nearfield calibration method used for phased array antennas containing tunable phase shifters
    Publication number: 20030038747
    Abstract: A method for calibrating a phased array antenna and the calibrated phased array antenna are described herein. In the preferred embodiment of the present invention, the method for calibrating a phased array antenna containing a plurality of electronically tunable phase shifters each of which is coupled to a column of radiating elements includes the steps of: (a) characterizing each of the electronically tunable phase shifters; (b) calculating phase offsets for each column of radiating elements using a nearfield antenna range and the characterized data for each of the electronically tunable phase shifters; and (c) using the calculated phase offsets in a calibration table to adjust the tuning voltage of each of the electronically tunable phase shifters to cause the columns of radiating elements to yield a uniform beam.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 27, 2003
    Inventors: Jaynesh Patel, Cornelis Frederik du Toit, Vincent G. Karasack
  • Farfield calibration method used for phased array antennas containing tunable phase shifters
    Publication number: 20030038746
    Abstract: A method for calibrating a phased array antenna and the calibrated phased array antenna are described herein. In the preferred embodiment of the present invention, the method for calibrating a phased array antenna containing a plurality of electronically tunable phase shifters each of which is coupled to a column of radiating elements includes the steps of: (a) characterizing, without having any prior phase shift versus tuning voltage data, each of the electronically tunable phase shifters; (b) calculating phase offsets for each column of radiating elements using a farfield antenna range and the characterized data for each of the electronically tunable phase shifters; and (c) using the calculated phase offsets in a calibration table to adjust the tuning voltage of each of the electronically tunable phase shifters to cause the columns of radiating elements to yield a uniform beam.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 27, 2003
    Inventors: Jaynesh Patel, Cornelis Frederik du Toit, Vincent G. Karasack