Characterisation of dielectric 3D-printingmaterials at microwave frequencies

Andrea Alimenti, Kostiantyn Torokhtii, Nicola Pompeo, Emanuele Piuzzi, Enrico Silva


3D-printer materials are becoming increasingly appealing, especially for high frequency applications. As such, the electromagnetic characterisation of these materials is an important step in evaluating their applicability for new technological devices. We present a measurement method for complex permittivity evaluation based on a dielectric loaded resonator (DR). Comparing the quality factor Q of the DR with a disk-shaped sample placed on a DR base, with Q obtained when the sample is substituted with an air gap, allows a reliable determination of the loss tangent.

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