ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,761, issued on Sept. 23, was assigned to RichWave Technology Corp. (Taipei, Taiwan).
"Antenna apparatus" was invented by Shih-Kai Lin (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An antenna apparatus is provided. The antenna apparatus includes a cavity element, a radiating element, and a feeding element. The cavity element includes an opening. The radiating element is located within the opening and disposed at a conductive layer. An outline of the radiating element and the opening form a surrounding slot. An imagining rectangle has four sides respectively abutted against an external outline of the surrounding slot. The feeding ele...