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This paper presents an overview of the innovative solutions developed within the Italian project GRETA (GREen TAgs and sensors with ultra-wide-band identification and localization capabilities), whose aim is the development of a distributed and comprehensive system for identification, localization, tracking and monitoring in indoor scenarios. The system is based on hybrid UWB-UHF RFID tags, and the...
This paper exploits the functionalities of an RFID reader combining the RADAR-monopulse technology with beam steering capability, able to interact with tagged objects widely distributed in harsh electromagnetic (EM) environments. The reader capabilities are investigated in a new application scenario: people movements estimation in a typical room ambient. The device is able not only to detect the angular...
This contribution discusses different aspects related to EM- and piezo-scavengers from ambient energy that are very promising as power suppliers of the latest evolution of ultra-low power electronic systems. First challenges in designing circuits and systems for microwave ambient energy harvesting are discussed. A design flow, including the RF/Microwave receivers and the base-band conversion blocks...
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