ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,636, issued on May 19, was assigned to Thruvision Ltd. (Abingdon, Great Britain).
"High frequency heterodyne mixer" was invented by Christopher Mark Mann (Cornwall, Great Britain) and Stephen Paul Marsh (Northampton, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Devices and methods for a detection system and heterodyne mixer having a local oscillator (LO) input, a radio frequency (RF) input, an intermediate frequency (IF) output, and a suspended waveguide structure that has a quartz substrate and patterned metal transmission line with a plurality of suppression slots."
The patent was filed on Oct. 16, 2020, under Application No. 17/76...