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