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Accuracy estimation of mixed-mode scattering parameter measurements

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3 Author(s)
Bockelman, D.E. ; Motorola Radio Products Appl. Res., Plantation, FL, USA ; Eisenstadt, W.R. ; Stengel, R.

The pure-mode vector network analyzer (PMVNA) provides direct measurement of differential circuits. Residual error models are derived for the PMVNA and a traditional four-port vector network analyzer (FPVNA). The residual error models are used to calculate the maximum and root-mean-square uncertainties in measurements of mixed-mode scattering parameters of a typical differential amplifier. The uncertainties produced by the PMVNA are compared to the transformed mixed-mode S-parameters of the FPVNA. The PMVNA is shown to have lower uncertainty when measuring differential devices

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:47 ,  Issue: 1 )