ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,767, issued on Sept. 23, was assigned to Aptiv Technologies AG (Schaffhausen, Switzerland).

"Planar surface features for waveguide and antenna" was invented by Mingjian Li (Santa Clara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This document describes techniques and systems for planar surface features for waveguides and antennas. Two structures are arranged with opposing planar surfaces fixed adjacent to a separation plane dividing a channel (e.g., a waveguide, a feed network) to provide an energy path for propagating electromagnetic energy. Part of the channel is formed between side walls of a recessed groove within one opposing surfac...