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Exposure of Insects to RadioFrequency Electromagnetic Fields from 2 to 120GHz    
Ga naar overzicht berichten in: Onderzoeken

Exposure of Insects to RadioFrequency Electromagnetic Fields from 2 to 120GHz
donderdag, 10 mei 2018 - Dossier: Algemeen


Bron: www.nature.com/articles/s41598-018-22271-3.pdf
2 maart 2018

Arno Thielens 1,2, Duncan Bell 3, David B. Mortimore 4, Mark K. Greco 5, Luc Martens 1 & Wout Joseph 1

Insects are continually exposed to Radio-Frequency (RF) electromagnetic felds at diferent frequencies.
The range of frequencies used for wireless telecommunication systems will increase in the near future
from below 6GHz (2G, 3G, 4G, and WiFi) to frequencies up to 120GHz (5G). This paper is the frst
to report the absorbed RF electromagnetic power in four diferent types of insects as a function of
frequency from 2GHz to 120GHz. A set of insect models was obtained using novel Micro-CT (computer
tomography) imaging. These models were used for the frst time in fnite-diference time-domain
electromagnetic simulations. All insects showed a dependence of the absorbed power on the frequency.
All insects showed a general increase in absorbed RF power at and above 6GHz, in comparison to the
absorbed RF power below 6GHz. Our simulations showed that a shift of 10% of the incident power
density to frequencies above 6GHz would lead to an increase in absorbed power between 3–370%.

zie verder de link bovenaan

1 Department of Information Technology, Ghent University - imec, Ghent, B-9052, Belgium.
2 Department of Electrical Engineering and Computer Sciences, University of California Berkeley, Berkeley Wireless Research Center, Berkeley, CA, 94704, USA.
3 Department of Science and Technology, Faculty of Health and Science, University of Sufolk, Ipswitch, IP30AQ, United Kingdom.
4 Newbourne Solutions Ltd, Newbourne, Woodbridge, IP12 4NR, United
Kingdom.
5 Charles Sturt University, Medical Imaging, SDHS, Faculty of Science, Wagga Wagga, NSW 2678, Australia.

Correspondence and requests for materials should be addressed to A.T. (email: arno.thielens@berkeley.edu)


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