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To enable pervasive exploitation of wireless sensor networks, semipassive wake-up radios (WuRs) are proposed to minimize the active time of the energy-hungry main communication radio. The most challenging feature is to enhance their sensitivity, the weakest activation signal the receiver is able to sense, which is limited by the minimum turn-on voltage of the diode-based detector. In order to operate...
In this work we characterize the RF-to-baseband response of a diode used for a rectifier circuit. The measurement setup enables the synchronous acquisition of vector-calibrated baseband and RF time-domain waveforms. The behavior of a Schottky diode, widely employed for RF Energy Harvesting and Wireless Power Transfer applications, is first measured, then further optimized, in order to enable the level...
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