ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,493, issued on March 31, was assigned to BEIJING XIAOMI MOBILE SOFTWARE Co. LTD. (Beijing).

"Metasurface unit and antenna" was invented by Liangang Chi (Beijing) and Dong Chen (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metasurface unit includes a metal radiation patch with a gap, an upper-layer dielectric plate, a metal ground layer, a lower-layer dielectric plate, and a feed structure arranged in sequence from top to bottom. One end of the feed structure is connected to the metal radiation patch, and another end of the feed structure is arranged on a bottom layer of the lower-layer dielectric plate through a feed through hole. The f...