Optimization of wireless sensors based on intermodulation communication

Autor:	Ville Viikari, Jinsong Song, Nadine Pesonen, Ilkka Marttila, Heikki Seppä
Jazyk:	angličtina
Rok vydání:	2013
Předmět:	Engineering Radiation business.industry mixers Electrical engineering Condensed Matter Physics Capacitance intermodulation RF identification (RFID) wireless sensors Harmonic balance Electronic engineering Wireless Electrical and Electronic Engineering business Intermodulation
Zdroj:	Song, J, Viikari, V, Pesonen, N, Marttila, I & Seppä, H 2013, ' Optimization of wireless sensors based on intermodulation communication ', IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 9, pp. 3446-3452 . https://doi.org/10.1109/TMTT.2013.2274052
ISSN:	1557-9670 0018-9480
Popis:	Intermodulation communication principle has been recently developed to wirelessly read-out passive sensors. Intermodulation communication sensors reply the sensor information at an intermodulation frequency when interrogated by a reader device with two tones. This paper derives an analytical expression for optimizing the electrical circuitry of such a sensor. The derived equations are verified by harmonic balance simulations. An optimized sensor is designed and fabricated and experimentally characterized. Results show that 1% change in the sensor capacitance can still be detected at a 13 m-distance and the read-out principle could enable an extreme resolution at shorter distances (less than per mille below 5 m). A wireless electrocardiography measurement is demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16e3d1038838060d333579c9a83bc4c0 https://cris.vtt.fi/en/publications/1ed8740d-04b0-484c-94d0-b17c9b670532 Zobrazit plný text záznamu