ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,566, issued on Oct. 14, was assigned to Raytheon Co. (Arlington, Va.).
"Traveling wave tube" was invented by David R. Sar (Corona, Calif.) and Adam M. Conway (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a traveling wave tube (TWT), comprising an electron gun configured to generate an electron beam (E-beam); a signal injector configured to generate a radio frequency (RF) signal; a slow wave structure (SWS) having an aperture configured to combine the E-beam and the RF signal; an outer wall enclosing the SWS; and at least one electromagnetically-active material on one of (1) at least one projection on at least one ...