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- W2955543952 abstract "The harvesting of ambient RF power would be a promising respond to the requirement of continuous power support the sensors of wireless networks, without using batteries. The devices used for scavenging the RF power are known by the term rectennas and their first unit is an antenna which captures the power of impinging RF signals and then guide it to be rectified and stored by the rest of rectennas' grades. This article proposes an antenna scheme suitable for rectenna applications at the Universal Mobile Telecommunication System (UMTS), from 1.92 GHz to 2.17 GHz. The antenna is composed of planar dipoles with specific layout, printed on dielectric substrate with Double Negative (DNG) electromagnetic properties. The DNG substrate is composed of dielectric spherical particles that are hosted in a medium of very low dielectric constant and have suitable size in order to resonate at the UMTS band, thus developing high intensity electromagnetic fields. The dipoles embedded to this hybrid structure gather amounts of RF power larger than in case of an ordinary dielectric. Moreover, the antenna was synthesized with intend a matching network between it and the rectifier not to be used, thus avoiding potential losses and complexity. Considering that the rectenna will work in mobile telecommunication environment, where the incoming signals are of statistical nature, its performance was studied using its Mean Effective Gain (MEG), the Cross Polarization Power Ratio (XPR) and the Directions of Arrival (DoAs) of the incoming waves. Statistical mean values for DC voltages and power equal to 172 mV and 65 μW respectively and with mean efficiency 58% were obtained for incident power 0.2 mW, while, depending on case, the DC voltage may exceed the 300 mV and the power the 160 μW." @default.
- W2955543952 created "2019-07-12" @default.
- W2955543952 creator A5043461106 @default.
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- W2955543952 date "2019-08-01" @default.
- W2955543952 modified "2023-10-16" @default.
- W2955543952 title "Hybrid rectennas of printed dipole type on Double Negative Dielectric Media for powering sensors via RF ambient energy harvesting" @default.
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- W2955543952 doi "https://doi.org/10.1016/j.aeue.2019.06.023" @default.
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