Due to a lack of financial resources, we unfortunately have to suspend the import of
any new radio frequency and mobile phone-related articles as of now (November 27,
2017). We apologize for this inconvenience and will keep you informed.
Because we received a large number of inquiries, we set up a bank account to accept
donations. With their aid, we hope to resume, at least partly, the import of newly
published articles to the RF archive of the EMF-Portal. Any contribution is greatly
appreciated. Thank you for your kind support!
the SAR-value was determined by power loss measurements and FDTD calculations; transmitted and reflected power was measured at CWexposure (915 MHz, 0.25 W), with and without sample tubes in the TEM-cell using a power meter and a coaxial directional coupler; because the absorbedpower in the 0.5-ml sample was too small to be measured, the measurements were performed using 5-ml samples instead; numerical calculations were performed using the FDTD method for CWexposure (912 MHz, 2 W); the routine was run for seven cycles to assure that the results have converged; average SAR was calculated through extrapolation to the pulsedGSMsignal with a duty factor of 0.125 and 2 W during the pulses The difference between the FDTD-derived value and the measured SAR should be explained by different coupling of the samples, 0.5 ml and 5 ml, to the field in the exposure system