Optimal Impedance Matching in Passive UHF RFID Sensors

Conference: RFID SysTech 2007 - 3rd European Workshop on RFID Systems and Technologies
06/12/2007 - 06/13/2007 at Duisburg, Germany

Proceedings: RFID SysTech 2007

Pages: 5Language: englishTyp: PDF

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Morales–Ramos, Ricardo; Montiel–Nelson, Juan Antonio (IUMA (University of Las Palmas de G.C.), Las Palmas de G.C., Spain)
Puente, David (TECNUN (University of Navarra), San Sebastian, Spain)
Milosiu, Heinrich (Fraunhofer Institute for Integrated Circuits, Erlangen, Germany)
Berenguer, Roc (Centro de Estudios e Investigaciones Técnicas de Guipúzcoa (C.E.I.T.), San Sebastian, Spain)

This paper proposes a method for optimal impedance matching in passive UHF RFID Sensors. The voltage multiplier (VM) is a key subsystem in power recovery circuits. Both its impedance and operation range are optimized. The proposed method evaluates each VM under the same load conditions, thus it can be also used as a comparison tool for different VM structures.