AUTOMATIC MEASURING ATTENUATION OF A FIXED ATTENUATOR

IN RANGE from 2 GHz to 26,5 (40) GHz BASED ON PARALLEL SUBSTITUTION

MLADEN BANOVIĆ

Technical Test Center, Belgrade, metrologija@toc.vs.rs

IVICA MILANOVIĆ

Technical Test Center, Belgrade, metrologija@toc.vs.rs

Abstract: This article describes automated measurements of fixed attenuators, based on parallel intermediate frequency (IF) substitution technique in frequency region up to 26,5 GHz. Mixer is operating in fundemental frequency. A precision piston is operating at 30 MHz, and  is used as a standard. This method is good for waveguide  measurement in frequency region  up to 40 GHz. GPIB intrface is used for Automatic System.