Study type:
Medical/biological study
(experimental study)
Effects of mobile phone electromagnetic fields at nonthermal SAR values on melatonin and body weight of Djungarian hamsters (Phodopus sungorus)
med./bio.
By:
Lerchl A, Kruger H, Niehaus M, Streckert JR, Bitz AK, Hansen V
The radial waveguides [Hansen et al., 1999] were 4.5 m in diameter and 14 cm high and were terminated at their radial boundaries by metal-backed absorbers. A cone antenna mounted in the center excited only the fundamental TEM mode, resulting in a uniform field distribution in the cross-section.
Setup
For each experiment, 120 animals were RF or sham exposed in two identical exposureunits (blind design). Forty macrolon cages (W 16 cm x L 23 cm x H 10 cm) per unit (each housing three unrestrained animals) were arranged at a constant distance from the antenna. Ten trapezoidal openings (approx. 1 m x 0.4 m) above the cages were closed by wire mesh lids.
For 1800 MHz, the plate distance at the inner part of the waveguide was reduced to 7 cm to prevent higher order modes with non-uniform field distributions.
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