Several wearable antennas suitable for implementation of UHF-RFID tags have been presented in the open scientific literature, showing a good robustness with respect to the body coupling effect, both on the input matching and on the antenna efficiency. In this work, a numerical investigation is presented in order to highlight that the robustness of the existing solutions for wearable, ungrounded, antennas can also be related to the distribution of the electric and magnetic energy densities close to the antenna borders.
Robustness of wearable UHF-band ungrounded antennas to human-body proximity
Casula G. A.;Montisci G.;
2016-01-01
Abstract
Several wearable antennas suitable for implementation of UHF-RFID tags have been presented in the open scientific literature, showing a good robustness with respect to the body coupling effect, both on the input matching and on the antenna efficiency. In this work, a numerical investigation is presented in order to highlight that the robustness of the existing solutions for wearable, ungrounded, antennas can also be related to the distribution of the electric and magnetic energy densities close to the antenna borders.
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