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10 results on '"Lecoutere, Jeroen"'

4. Assessing radio frequency electromagnetic field exposure with a wearable network of dosimeters

Author

Lecoutere, Jeroen, De Clercq, Hans, Thielens, Arno, Agneessens, Sam, Rogier, Hendrik, Joseph, Wout, Puers, Bob, and Nobuaki, Arai

Subjects
exposure, on-body, dosimeter, RF, inertial, wearable, sensor network
Abstract

In contrast to the tremendous increase of wireless applications, the knowledge about daily life radio frequency electromagnetic field (RF-EMF) exposure remains low. Some research has already been conducted using large commercial single-antenna on-body dosimeters to assess daily RF-EMF exposure in different environments. To increase measurement quality and decrease variability however, a distributed, wearable body sensor network spread over the body for the assessment of RF-EMF exposure is desired. As a better alternative to the common single node assessment technique, this work therefore presents a wearable sensor network consisting of five nodes for the assessment of exposure in the 389 to 464, 779 to 950 and 2400 to 2483.5MHz bands using only two transceivers per node. A single node supports an antenna connection for the first band, two for the second and two for the third band. This makes antenna diversity possible and hence increases sensitivity for specific frequencies, depending on the choice of antenna design. Every node is powered by two AAA batteries, which define the size of the system (53x25x15mm), making it smaller than any other commercially available dosimeter. Furthermore, the device supports an inertial sensor for the assessment of body posture and/or activity during the measurement. ispartof: pages:41-43 ispartof: Proceedings of the 20th symposium of the International Society on Biotelemetry pages:41-43 ispartof: Symposium of the International Society on Biotelemetry location:Kyoto date:19 May - 22 May 2014 status: published

Published
2014

7. Personal distributed exposimeter for radio frequency exposure assessment in real environments

Author

Thielens, Arno, De Clercq, Hans, Agneessens, Sam, Lecoutere, Jeroen, Verloock, Leen, Declercq, Frederick, Vermeeren, Günter, Tanghe, Emmeric, Rogier, Hendrik, Puers, Robert, Martens, Luc, and Joseph, Wout

Subjects
Technology and Engineering, dosimetry, MODELS, CHILDREN, STATISTICAL-ANALYSIS, PIFA, textile antennas, SIMULATIONS, RF DOSIMETERS, ELECTROMAGNETIC-FIELD MEASUREMENTS, wearable electronics, DESIGN, radio frequency exposure, GHZ, BODY AREA NETWORKS, ABSORPTION
Published
2013

10. Personal distributed exposimeter for radio frequency exposure assessment in real environments.

Author

Thielens A, De Clercq H, Agneessens S, Lecoutere J, Verloock L, Declercq F, Vermeeren G, Tanghe E, Rogier H, Puers R, Martens L, and Joseph W

Subjects
Confidence Intervals, Humans, Male, Environment, Phantoms, Imaging, Radio Waves, Radiometry instrumentation
Abstract

For the first time, a personal distributed exposimeter (PDE) for radio frequency (RF) measurements is presented. This PDE is designed based on numerical simulations and is experimentally evaluated using textile antennas and wearable electronics. A prototype of the PDE is calibrated in an anechoic chamber. Compared to conventional exposimeters, which only measure in one position on the body, an excellent isotropy of 0.5 dB (a factor of 1.1) and a 95% confidence interval of 7 dB (a factor of 5) on power densities are measured., (© 2013 Wiley Periodicals, Inc.)

Published
2013
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