ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,747, issued on April 22, was assigned to AUDEN TECHNO CORP (Taoyuan, Taiwan).

"Dual-frequency antenna structure" was invented by Chi-Ming Chiang (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dual-frequency antenna structure includes a substrate, and a grounding element, a conductive sheet, a transmitting antenna, and a receiving antenna that are disposed on the substrate. The transmitting antenna includes a first coupling conductive pad, a first conductive column that is electrically coupled to the first coupling conductive pad and the conductive sheet, and a first feeding conductive pad. The first feeding conductive pad can produ...