Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ilkka Marttila"'
Publikováno v:
McCaffrey, C, Flak, J, Marttila, I, Pesonen, N & Pursula, P 2017, Development of a reader device for fully passive wireless sensors . in IEEE SENSORS 2017 . IEEE Institute of Electrical and Electronic Engineers, 16th IEEE SENSORS Conference, ICSENS 2017, Glasgow, United Kingdom, 30/10/17 . https://doi.org/10.1109/ICSENS.2017.8234409
The zero power sensor network represents a platform that enables fully passive wireless sensing based on the third order intermodulation principle. This work describes the development and evaluation of a zero power reader device. Results from the ini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6ca5b0a243c075299f556f34be39060
https://cris.vtt.fi/en/publications/7e4600c1-d841-49a5-8fd3-09e3c20e8e94
https://cris.vtt.fi/en/publications/7e4600c1-d841-49a5-8fd3-09e3c20e8e94
Publikováno v:
Pursula, P, Marttila, I, Nummila, K & Seppä, H 2013, ' High Frequency and Ultrahigh Frequency Radio Frequency Identification Passive Sensor Transponders for Humidity and Temperature Measurement Within Building Structures ', IEEE Transactions on Instrumentation and Measurement, vol. 62, no. 9, pp. 2559-2566 . https://doi.org/10.1109/TIM.2013.2258763
This paper presents the development of passive high frequency (HF) and ultrahigh frequency (UHF) radio frequency identification (RFID) sensor transponders for humidity and temperature monitoring. The transponders use RFID integrated circuits with a d
Publikováno v:
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
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 t
Autor:
A. Luukanen, J. Holmberg, T. Karttaavi, Ilkka Marttila, Antti Lamminen, Manu Lahdes, Markku Lahti, Mikko Kantanen, Tauno Vähä-Heikkilä, Pekka Pursula
Publikováno v:
Pursula, P, Karttaavi, T, Kantanen, M, Lamminen, A, Holmberg, J, Lahdes, M, Marttila, I, Lahti, M, Luukanen, A & Vähä-Heikkilä, T 2011, ' 60-GHz millimeter-wave identification reader on 90-nm CMOS and LTCC ', IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 4, pp. 1166-1173 . https://doi.org/10.1109/TMTT.2011.2114200
A reader module at 60 GHz for high data-rate short-range backscattering-based communications is presented. The reader consists of a CMOS-based oscillator, amplifiers, and a mixer on a low-temperature co-fired ceramic (LTCC) substrate. The filter, pow
Publikováno v:
Pursula, P, Pesonen, N, Song, J, Marttila, L & Viikari, V 2014, Achieving long reading ranges with passive wireless intermodulation sensors . in 2014 IEEE RFID Technology and Applications (RFID-TA) Conference . IEEE Institute of Electrical and Electronic Engineers, pp. 131-134, IEEE RFID Technology and Applications (RFID-TA) Conference, Tampere, Finland, 8/09/14 . https://doi.org/10.1109/RFID-TA.2014.6934214
RFID-TA
Aalto University
RFID-TA
Aalto University
This paper presents a system architecture combining batteryless wireless intermodulation sensors and their associated reader, and analyses the achievable read range of such sensor-reader system. The computed read range is compared to those provided b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::369303079b482c6b05e739dd157acf35
https://doi.org/10.1109/RFID-TA.2014.6934214
https://doi.org/10.1109/RFID-TA.2014.6934214
Autor:
Ilkka Marttila, Nina Lindfors
Publikováno v:
Journal of plastic surgery and hand surgery. 46(5)
We studied the epidemiology, incidence, and outcome among children and adolescents admitted for possible replantation or revascularisation of an injured upper extremity during the period 1998–2008. Twenty-nine patients with 38 finger injuries were
Publikováno v:
Pursula, P, Marttila, I & Nummila, K 2009, ' Wideband adaptive isolator for UHF RFID reader ', Electronics Letters, vol. 45, no. 12, pp. 636-637 . https://doi.org/10.1049/el.2009.0512
A wideband adaptive isolator for a UHF RFID reader with a minimum component count is introduced. The operation of the device is based on a reflection from a variable load, which is connected to a port of a hybrid coupler. The other ports are connecte