ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,506, issued on June 23, was assigned to Rockwell Collins Inc. (Cedar Rapids, Iowa).

"Antenna offset principal plane sidelobes for enhanced ground clutter suppression" was invented by Jeffery A. Finley (Cedar Rapids, Iowa) and James B. West (Cedar Rapids, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromechanically steered passive directional arrays and ESA antenna with the rectangular apertures' mathematically separable radiation pattern array lattice rotated to rotate the higher cardinal plane side lobes to plus-minus45deg relative to the vertical plane. Rotation minimizes clutter returns that mask weaker power returns and generates l...