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An experimental approach is proposed to validate the theoretical energy-based considerations for wearable UHF RFID antenna design. On the basis of numerical analysis, it has been shown that wearable antennas presenting an energy density peak far from the antenna border are more robust with respect to the distance from the human body. A flexible and cost-effective RFID tag characterization and performance...
A number of wearable antennas suitable for implementation of UHF-RFID tags have been presented in the open scientific literature. All of them are characterized by a high sensitivity with respect to the coupling with the human body, both on the input matching and on the antenna efficiency. This work presents a numerical investigation performed over a couple of wearable, ungrounded, antennas configurations,...
The robustness of wearable UHF-band grounded antennas with respect to body-coupling effects is addressed through numerical investigations. Main goal is gaining physical insights on the relationship between the grounded antenna performance and the distribution of the electric and magnetic energy densities in the antenna near-field region close to the ground plane border. Two UHF Planar Inverted-F Antennas...
The robustness of wearable UHF-band planar inverted-F antennas (PIFAs), with respect to body–antenna separation and human tissue dispersion, is addressed through numerical investigations. The main goal is gaining physical insights into the relationship between the grounded antenna performance and the distribution of the electric and magnetic energy densities in the antenna near-field region close...
The robustness of grounded wearable antennas for UHF-RFID (Radio Frequency Identification) transponders with respect to the body-coupling effects, is here addressed through numerical simulations. The analysis is performed in terms of the distribution of electric and magnetic energy densities close to the antenna borders.
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