Specific Absorption Rate (SAR) characterizes the level of absorption of EMR by the tissue of the body. The absorption of EMR by biological systems can lead to the distortion of cellular transduction mechanism, to the development of thermal effect in cells, their damage and, consequently, to the distortion of cellular function. Due to these reasons FCC (Federal Communication Committee) established the standards for allowed SAR values in the range of 0.2 – 2.0 W/kg. The reduction of SAR values obviously is beneficial for human health. The test evaluation revealed the two key results:
The application of MRET-Shield to the RF phones does not lead to any significant distortion of transmitted RF signals.
In each experiment, SAR values were measured in 242 points of “phantom head.” The application of MRET-Shield to the RF phones showed that “Hot Spots” remained in the same location as without MRET polymer and their amplitudes decreased by 90% of data points. The application of MRET-Shield to the RF phones led to the reduction of the majority of meaningful SAR values in these experiments in the range of 0.3% - 29.0%.
Below are presented the “Hot Spot” Area Scan Diagrams that provide evidence that the application of MRET-Shield to the RF phone did not change the location of “Hot Spot” and significantly decreased SAR values in the scanned area.