Some properties of nickel-coated carbon fibre-polypropylene composite at microwave frequencies |
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Authors: | M. S. Ahmad M. K. Abdelazeez A. Zihlif E. Martuscelli G. Ragosta E. Scafora |
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Affiliation: | (1) University of Jordan, Amman, Jordan;(2) Instituto di Ricerche su Technologia dei Polimero, CNR, Via Toiano 6, 80072 Arco Felice (Na), Italy |
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Abstract: | Some properties of nickel-coated carbon fibre-polypropylene composite are considered at microwave frequencies in the range 8 to 12 GHz. The paper presents the measured values of the insertion and return losses and the equivalent input impedance in the above frequency band. Measurements were performed on composite material for different nickel-coated fibre concentrations of 0, 5, 10, 16 and 28 wt%. The filler effects shows a transition region and identifies the dependency of the electrical properties on these concentrations. Furthermore, shielding effectiveness is calculated for the given concentrations and it is found that its value could reach more than 30 dB over the whole frequency band for a specimen of 2.6 mm thickness and with 28 wt% concentration. |
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