ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,725,936, issued on Sept. 1, was assigned to HIROSHIMA UNIVERSITY (Hiroshima, Japan).

"Array antenna device" was invented by Minoru Fujishima (Higashihiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An array antenna device for use in a 300 GHz band includes a first layer in which antenna elements are arranged in a grid shape and a second layer stacked on the first layer. The second layer includes mixers that are arranged in grid regions overlapping the antenna elements in plan view, that each include an LO signal terminal, an IF signal terminal, and an RF signal terminal, with the RF signal terminals being electrically connected to the ant...