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We compared three software tools designed for scattering-parameter measurement uncertainty evaluation. These tools propagate uncertainty to calibrated S-parameters by means of a sensitivity analysis. We also validated the sensitivity analysis with Monte-Carlo simulations performed with one of the software tools and the Keysight ADS circuit simulator.
Modelling at gigahertz frequencies is often based on (non)linear microwave/millimeter wave measurements. These measurements are usually considered ideal in modelling procedures. In this work, we demonstrate how measurement uncertainty may impact model extraction in two application areas: biofluidic modelling and large-signal transistor modelling.
In recent years, wireless systems have rapidly evolved due to the increasing demands of different services, functionalities, and applications. In order to provide high-speed connectivity while using the available spectrum in an efficient manner, wideband digitally modulated signals are increasingly used to transmit information.
In this work, measurements of the high frequency as well as the low frequency response of a non-linear microwave circuit are reported. The developed set-up is based on an extension of the LSNA and it enables the simultaneous measurement of baseband response and RF behaviour. Thanks to this capability a direct correlation between the variation of baseband impedance and asymmetry of distortion components...
This work presents a way to determine the complete response, encompassing both the low- and high-frequency components, at the device terminals within a microwave circuit. The measurement set-up is based on an extension of the large-signal network analyser. Experimental results on a GaAs power amplifier are analysed.
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