New Challenges Related to 5G Bioelectromagnetic Exposure for Laboratories Studies

Questions related to human exposure to electromagnetic waves remain relevant, particularly with the deployment of 5G telecommunications systems within frequency bands such as 0.7GHz, 3.5GHz or 26GHz. The scientific community must continue the investigations on possible thermal or non-thermal health effects related to this new technology. The objective of this presentation is to illustrate trends and challenges associated with the development of exposure systems and associated dosimetry for 5G bioelectromagnetic in-vitro and in-vivo studies. Indeed, exposure to electromagnetic fields associated with 5G applications in the higher frequency bands such as 26GHz band lead to an exposure of the surface layers of skin or eye as the wave penetration depth is of the order of a millimeter. Specific exposure systems must be adapted or developed for these higher frequencies such as propagative microsystems, radiating antennas for local exposures or resonant cavities for global exposures. In parallel, experimental microdosimetry techniques will be presented aiming to quantify thermal or non-thermal effects related to exposure to electromagnetic waves for microsystems such as thin interdigitated arrays of electrodes, microfluidic, lab-on-chip or at the biological cell level.