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This paper presents a multi frequency power scavenging unit dedicated but not exclusively designed for supplying RFID transponders and wireless sensor nodes. The power scavenging unit converts the incoming AC power into DC power (from 1MHz up to 2.45GHz). The circuit is used in a fully-passive multi frequency RFID transponder according to the EPC HF and EPC Class 1 Gen 2 UHF standard and is developed...
State-of-the-art wireless sensor nodes are mostly supplied by batteries. Such systems have the disadvantage that they are not maintenance free because of the limited lifetime of batteries. Instead, wireless sensor nodes or related devices can be remotely powered. To increase the operating range and applicability of these remotely powered devices an electro-magnetic energy harvester is developed in...
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