Abstract
A promising communication technology for novel wireless sensing applications is passive ultra high frequency (UHF) radio frequency identification (RFID). The advantage of passive RFID in wireless sensor networks is that bulky, battery-powered sensor nodes can be avoided, because all power required for operation of the sensor nodes is drawn from the electromagnetic field radiated by a control unit. In this contribution, wireless sensing applications in the field of car tire monitoring and remote health monitoring, based on passive UHF RFID, are presented. In particular, important aspects regarding a power efficient, wireless, passive communication system are exemplified, including the antenna design of the sensor nodes as well as the investigation of the wave propagation in these networks.
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