ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,095, issued on Sept. 23, was assigned to QUALCOMM Inc. (San Diego).
"Passive MIMO device" was invented by Mohsen Farmahini Farahani (Encinitas, Calif.), Lida Akhoondzadehasl (Sunnyvale, Calif.) and Allen Minh-Triet Tran (Rancho Santa Fe, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the disclosure related to devices, wireless communication apparatuses, methods, and other aspects of passive multiple input multiple output. In some aspects, an apparatus is provided that includes a first radio frequency (RF) transmission line having a first terminated with a quarter wavelength grounded transmission line, and a first array of antennas...