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This paper presents simulations and experimental analysis of the electromagnetic propagation and of the field distribution generated in and around a tire by a sensor node operating in ISM and UWB (4.5 GHz) bands.
Two miniaturized antennas, working at 2.44 GHz (ISM band) and 4.5 GHz (for UWB signals) with 11% bandwidth), have been integrated into and around a cubic sensor node of about 1 cm side used in automotive applications. The influence of the nearby metallic components has been reduced, and good performances and agreement between simulated and experimental results has been found.
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