SAR (Specific Absorption Rate) overview
The term ser refers to a measure of the ratio of energy absorbed by the human body when exposed to radio frequency electromagnetic fields emitted by cell phones, tablets, bluetooth and WiFi devices, among others.
It is defined as the power absorbed by mass (human tissue) and has the unit of measurement of watts per kilogram (W / kg).
SAR measurement systems use standardized models of the human head and body. These models are filled with liquids that simulate the RF absorption characteristics of human tissue by different frequency ranges.
The SAR measurement is usually measured either over the entire body, or over a small volume sample (1g or 10g of tissue).
The ELDORADO SAR Laboratory
The structure has several SAR measurement systems in order to meet the needs of the market regarding the shortest period of time in carrying out the tests, still having the possibility of supporting development projects not only in telecommunications equipment but also in medical devices.
The main reference standards in the area are:
- IEC 62209-1 & IEC 62209-2
- EN 50371 (CENELEC)
- FCC OET 65 Supplement C
- FCC KBD Specific Procedures
- IEEE Std 1528
- Annex to ANATEL Resolution 533 (2009) & Annex to ANATEL Resolution 303 (2002)
- ANATEL Act No. 955 (Feb / 2018)