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This paper presents a fully passive multi frequency RFID transponder according to the EPC HF and EPC Class 1 Gen 2 UHF standard. The combination of inductive and electro-magnetic coupling increases the applicability and flexibility of state-of-the-art RFID transponders especially for these areas of applications where RFID transponders should operate in both the HF and the UHF RF field. An easy integration...
State-of-the-art passive RFID tags are limited in terms of functionality and operating range due to the limited power that can be converted from the electromagnetic field. This is why state-of-the-art wireless sensor systems are mostly battery-based if a high operating range is required. The proposed ultralow-power on-chip sensor unit and off-chip sensor interface which provides enough energy to supply...
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