US Patent Issued to NEC on July 28 for "Phase shifter and antenna device" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,695,433, issued on July 28, was assigned to NEC Corp. (Tokyo).

"Phase shifter and antenna device" was invented by Kohei Yoshida (Tokyo), Kenji Wakafuji (Tokyo), Ryota Nihei (Tokyo), Kazuyuki Hayashi (Tokyo) and Fujio Okumura (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A phase shifter that includes a 90-degree hybrid circuit and a variable-length stub group including two variable-length stubs connected to the 90-degree hybrid circuit. The variable-length stub includes a first switch connected to the 90-degree hybrid circuit and including vanadium dioxide of a first composition that phase-transitions between an insulation phase and a m...