Title :
Accurate measurement of millimetre-wave phase-shift from 220 to 325 GHz using dual-channel system
Author_Institution :
Nat. Metrol. Centre, A*STAR, Singapore, Singapore
Abstract :
A 220-325-GHz millimetre-wave phase-shift measurement system is described. The differential phase-shift measurement uncertainty is estimated to be 0.58°-1.32° for a 0-60 dB rotary vane attenuator (RVA) at 325-GHz. The phase-shift of a WR-03 waveguide shim is measured as a line standard to verify the system. Measurement results of a WR-03 RVA are also presented.
Keywords :
measurement uncertainty; millimetre wave measurement; phase measurement; waveguide attenuators; RVA; differential phase shift measurement uncertainty; dual channel system; frequency 220 GHz to 325 GHz; millimetre wave phase shift accurate measurement; rotary vane attenuator; waveguide shim;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.3351
