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:
Mar. 30, 2021
Filed:
Mar. 06, 2020
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Orion Davies, Cedar Rapids, IA (US);
Shajid Islam, Norman, OK (US);
Connor C. McBryde, Marion, IA (US);
Trevor Trinkaus, Melbourne, FL (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A system may include a processor and an antenna array including antenna radiating elements. The processor may be configured to: receive first, second, third, and fourth measurement coding matrixes; calculate a reference encoding matrix with coherent signal leakage de-embedded by subtracting the fourth measurement coding matrix from the third measurement coding matrix; calculate a differential encoding matrix providing twice a signal-to-noise ratio by adding the first measurement coding matrix and the second measurement coding matrix; calculate a differential matrix decoded back to conventional Hadamard matrix by subtracting the differential encoding matrix providing twice a signal-to-noise ratio from the reference encoding matrix with coherent signal leakage de-embedded; calculate complex calibration coefficients for the antenna radiating elements by multiplying an inverse Hadamard matrix by the differential matrix decoded back to conventional Hadamard matrix; and program the antenna array with amplitude and phase offsets computed from the complex calibration coefficients.