Patrizia Savi

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Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The aim is to enable open access to all the world. Please share with us how this access benefits you. Your story matters. Abstract The use of reflected Global Navigation Satellite System (GNSS) signals for sensing the Earth has been(More)
A complete characterization and modeling procedure for high-frequency transformers is proposed. The procedure is based on one-port measurements and on the approximation of the entries of the admittance matrix of the transformer by real rational functions. Parasitics effects between the wind-ings and between the windings and the reference plane are included(More)
A wide-band microwave characterization of nanocomposites based on commercial multiwalled carbon nanotubes (MWCNTs) and epoxy resin is presented. The sample preparation method is discussed in detail. Field emission scanning electron microscopy is used for morphological sample analysis of nanocomposites and MWCNTs. The complex permittivity is measured in a(More)
—The modeling of high-frequency transformers via augmented equivalent circuits is addressed. The augmented models are composed of a low-frequency equivalent and a supplemental element modeled via real rational fitting. They offer both high accuracy levels and a physical meaning that helps the interpretation of simulation results. Parasitics effects between(More)
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