Wirelessly Powered Sensor Transponder for UHF RFID
| Autor: | H. Ronkainen, Kaarle Jaakkola, Pekka Pursula, J. Marjonen |
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| Rok vydání: | 2007 |
| Předmět: |
Engineering
business.industry Capacitive sensing Voltage divider Electrical engineering Analog-to-digital converter Hardware_PERFORMANCEANDRELIABILITY Capacitance law.invention Transmission (telecommunications) Ultra high frequency sensor law UHF RFID Hardware_INTEGRATEDCIRCUITS Electronic engineering Radio frequency business Hardware_LOGICDESIGN Transponder |
| Zdroj: | Pursula, P, Marjonen, J, Ronkainen, H & Jaakkola, K 2007, Wirelessly powered sensor transponder for UHF RFID . in 14th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2007 . IEEE Institute of Electrical and Electronic Engineers, pp. 73-76, 14th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS '07 and EUROSENSORS XXI, Lyon, France, 10/06/07 . https://doi.org/10.1109/SENSOR.2007.4300074 |
| Popis: | A transponder for UHF RFID with sensor interface for external capacitive sensors is described. The sensor interface consists of a capacitive voltage divider and a 10 bit successive approximation analog to digital converter. The power consumption is about 30 muWDC and the transponder is wirelessly powered with RF waves from the reader device. Wireless measurement of capacitance is demonstrated at a distance of 30 cm with 0.5 W erp transmission power. Low operation distance is mostly due to low efficiency of the rectifying Schottky-diodes in the particular BiCMOS process. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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