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An uncertainty analysis for the measurement of intrinsic properties of materials by the combined transmission-reflection method

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1 Author(s)
E. Ni ; Dept. of Mater. Sci., Zhenjiang Univ., Hangzhou, China

The uncertainty of measurements of the complex permittivity εr and permeability μr as a function of the normalized sample length l/Λ' due to the measured errors in the scattering coefficients S11 and S 21 is discussed. A simple analysis of εr and μr and some measured data are given, which allows one to determine the extent of l/Λ' and maximum uncertainty of the combined total transmission-reflection method in application to radar absorber measurements

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:41 ,  Issue: 4 )