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The paper deals with the localization of radio emitters into collapsed buildings after earthquake. A measurement campaign has been carried out in a typical European historical city, L'Aquila, which was recently stroke by a severe earthquake. Continuous wave radio transmitters operating at 434 and 868 MHz have been introduced under rubble and their signals have been measured at different points surrounding...
UHF Radio Frequency Identification (RFID) systems are considered in the Near Field/Short Range and Far Field applications. The effect due to the presence of dielectric materials in close contact with the tag antenna is investigated. The efficiency of the UHF RFID antenna is parametrically analyzed by varying the impedance of the integrated circuit (IC) connected to the tag antenna. An investigation...
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