ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,593, issued on Dec. 9, was assigned to HRL LABORATORIES LLC (Malibu, Calif.).

"Active receive antenna" was invented by Carson White (Malibu, Calif.), Ryan Quarfoth (Malibu, Calif.) and Amit Patel (Malibu, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary receive antenna having a conductive surface. The conductive surface includes an aperture configured to operate as a slot antenna, and one or more amplifiers or buffer amplifiers is electrically connected across the aperture. At least one feed is connected between the one or more amplifiers and the aperture. An input impedance ZB of each of the one or more amplifiers at the at least o...