Sub-6 GHz Electromagnetic Field Exposure Assessment utilizing Specific Absorption Rate

This paper presents a review of the thermal effect assessment of electromagnetic field (EMF) exposure from close distance radiation sources at sub-6 GHz. The thermal effect assessment of this non-ionizing radiation (NIR) is utilizing specific absorption rate (SAR) parameter. The review concerns SAR of a single antenna element and SAR of antenna arrays with multiple antenna elements, which have different characteristics. This paper can be a guide for engineers and researchers to ensure compliance of wireless devices.