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Comparison of network analysis methods for computing complex propagation coefficients of dispersive transmission lines

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ABSTRACT

Transmission lines of various degrees of dispersion are often designed and fabricated for use in high speed circuits and in metamaterials. The quick generation of dispersion diagrams and attenuation coefficient curves can be made from S-parameter measurements, with S21 alone being sufficient for generating dispersion diagrams. S21 is also sufficient to accurately measure the attenuation coefficient, group velocity, phase velocity, and effective index of refraction of highly dispersive transmission lines. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:758–761, 2014

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