Comptes Rendus
no. 9-10
Interactions between radiofrequencies signals and living organisms
The brain is not a radio receiver for wireless phone signals: Human tissue does not demodulate a modulated radiofrequency carrier
[Le cerveau n'est pas un récepteur radio pour les signaux de téléphone mobile : Les tissus humains ne démodulent pas une porteuse radiofréquence modulée]
Christopher C. Davis1  ; Quirino Balzano1
1 Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA
Comptes Rendus. Physique, Volume 11 (2010) no. 9-10, pp. 585-591.

Il a été suggéré que les modulations basse fréquence des signaux radiofréquences émis par un téléphone sans fil pourraient être démodulées par les tissus humains. Si cela arrivait, cela pourrait induire des interactions avec les ions des tissus et entraîner d'éventuelles conséquences biologiques. Au cours d'expériences récentes, il a été montré que les cellules biologiques ne présentaient pas de non-linéarités susceptibles de démoduler ces signaux basses fréquences. Ceci écarte toute hypothèse d'interactions entre les ondes radiofréquences et les systèmes biologiques liées à de tels mécanismes de démodulation. Le téléphone mobile n'induit pas de risque athermique pour votre cerveau.

It has been suggested that the low frequency modulations of the radiofrequency (RF) signal from a wireless phone could be demodulated by human tissue. If this occurred it could lead to interactions with ions in the tissue, with possible biological consequences. In recent experiments it has been shown that biological cells do not exhibit significant electrical nonlinearity to be able to demodulate low frequency signals present as modulations of a RF carrier. This makes irrelevant any hypothetical interactions between RF electromagnetic waves and biological systems involving such demodulation mechanisms. Your wireless phone is not an athermal hazard to your brain.

Publié le :
DOI : 10.1016/j.crhy.2010.09.002
Keywords: Nonlinearity, Demodulation, Wireless telephones
Mot clés : Non-linéarité, Démodulation, Téléphones sans fil, Téléphone mobile
Christopher C. Davis 1 ; Quirino Balzano 1

1 Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA 
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Christopher C. Davis; Quirino Balzano. The brain is not a radio receiver for wireless phone signals: Human tissue does not demodulate a modulated radiofrequency carrier. Comptes Rendus. Physique, Volume 11 (2010) no. 9-10, pp. 585-591. doi : 10.1016/j.crhy.2010.09.002. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2010.09.002/

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☆ This paper was originally presented at the 2èmes Rencontres Scientifiques de la Fondation Santé et Radiofréquences on October 21, 2009.

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