ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,664, issued on May 19, was assigned to United States of America as represented by the Secretary of the Navy (Washington).
"Tunable antenna" was invented by Frederick J. Verd (Santee, Calif.), Justin Church (San Diego) and Alejandro T. Castro (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tunable or dual-band antenna includes a ground plane, top plane, a cage structure, first and second half-loops, and a hybrid phase shifter. The cage structure is attached to the ground plane and the top plane that includes four leg structures in electrically-conductive contact with the top plane. The top plane is one of a cross-element with four equilate...