The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2014
Filed:
May. 16, 2011
W Mark Dorsey, Elkridge, MD (US);
Rashmi Mital, Lorton, VA (US);
Mark G Parent, Port Tobacco, MD (US);
Doug Taylor, Indian Head, MD (US);
W Mark Dorsey, Elkridge, MD (US);
Rashmi Mital, Lorton, VA (US);
Mark G Parent, Port Tobacco, MD (US);
Doug Taylor, Indian Head, MD (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A phased array antenna includes a plurality of subarrays, and each subarray includes a panel, a plurality of primary antenna elements positioned on the panel, and at least one pair of sensor antenna elements positioned along a perimeter of the panel. One of the sensor antenna elements is a transmitting sensor antenna element and the other sensor antenna element is a receiving sensor antenna element. Changes in the mutual coupling between the two high frequency sensor antenna elements as a function of deformation of the subarrays provides a calibration signal outside of the operational band of the array while the array is operated and without requiring external calibration sources.