Title :
Calibration of a time-domain network analyzer: a new approach
Author :
Ferrari, Philippe ; Angénieux, Gilbert
Author_Institution :
LAHC-UFR SFA, Savoie Univ., Le Bourget du Lac, France
fDate :
2/1/2000 12:00:00 AM
Abstract :
This paper deals with the calibration of time-domain network analyzers operating in the bandwidth dc-20 GHz. After identification and experimental estimation of the error sources, an approach based on a standard TRL (thru-reflect-line) calibration procedure, adapted to bidirectional (two generators and two samplers) time-domain measurement systems for the correction of systematic errors, is developed. Optimal conditions for the minimization of random errors are also carried out. Next, the measurement system dynamic range and repeatability are accurately characterized. Finally, experimental results obtained on coaxial attenuators and a mismatched lossy microstrip line demonstrate the accuracy of the method
Keywords :
calibration; error correction; measurement errors; microwave reflectometry; network analysers; time-domain reflectometry; bidirectional time-domain measurement systems; calibration; coaxial attenuators; dynamic range; error identification; error sources; microwave measurements; minimization of random errors; mismatched lossy microstrip line; optimal conditions; repeatability; systematic errors correction; thru-reflect-line procedure; time drifts; time-domain network analyzer; time-domain reflectometry; Attenuators; Bandwidth; Calibration; Coaxial components; Dynamic range; Error correction; Estimation error; Measurement standards; Standards development; Time domain analysis;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
