Materials Measurement Phil Bartley Shelley Begley
Materials Measurement Phil Bartley Shelley Begley
Materials Measurement Phil Bartley Shelley Begley
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Nicolson-Ross ModelTechnique is based on solving the two equationsbelow for the two unknownsM 21 +M 11 =S 21 (φ,ε,µ) + S 11 (φ,ε,µ)M 21 -M 11 =S 21 (φ,ε,µ) - S 11 (φ,ε,µ)A. M. Nicolson and G. F. Ross, "<strong>Measurement</strong> of the intrinsic properties of materials bytime domain techniques, " IEEE Trans. Instrum. Meas., IM-19(4), pp. 377-382, 1970.The Nicolson-Ross model solves for both permittivity and permeability by makingtransmission and reflection coefficient measurements on a single sample of thematerial. The M xx in the equations above refers to the measured values of the s-parameters while S xx refers to the values calculated from the previously mentionedequations. Nicolson and Ross showed by taking the sum and difference oftransmission and reflection coefficients the values for u and e can be determined.37