Measurement Techniques
Volume 6, Number 4, 340-343, DOI: 10.1007/BF00991732

High and Ultrahigh Frequency Measurements

Application of the standing-wave method for calibrating attenuators

A. S. Elizarov

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Abstract

1.  The above methods, which provide sufficiently high precision and efficiency, can be used for calibrating commercial and reference attenuators both in laboratories and under production conditions. Only standard measuring equipment is required for calibrations.
2.  Experimental results indicate that the suggested installation provides measurements of varying attenuations not exceeding for the first two methods 30–35 db, and for the third method 25–30 db. It becomes possible to measure by means of the first two methods varying attenuations up to 50 db, i.e., to encompass the range of polarization attenuators, if a ferrite rectifier is substituted for the generator''s decoupling attenuator and the insertion of the probe is raised.
3.  The main drawback of these methods is due to the calibration by steps involving the possibility of undetected errors. Only an experienced operator, therefore, can calibrate attenuators with precision by these methods.

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