Patent 7719462 was granted and assigned to Siemens Milltronics Process Instruments on May, 2010 by the United States Patent and Trademark Office.
A time-of-flight calibration system for a radar-based measurement device is provided. The time-of-flight calibration system includes a target antenna and a waveguide, e.g. a coaxial cable. The waveguide is coupled at one end to the target antenna and terminated at its other end by a wave-reflecting impedance.