The Parametrization of Electromagnetic Emissions and Hazards from a Wearable Device for Wireless Information Transfer with a 2.45 GHz ISM Band Antenna
Source abstract
Abstract
The parameters of electromagnetic emissions from the antenna of a wearable radio communication module (parameterizing device functionality) were investigated at different positions near the body where an antenna is located. The specific absorption rate (SAR) coefficient was also investigated as a way of parameterizing the absorption of electromagnetic radiation in the user’s body adjacent to the antenna in various locations. The modeled exposure scenarios concerned a body-worn device with a 2.45 GHz ISM band antenna (used, e.g., for Wi-Fi 2G/Bluetooth applications). The antennas were modeled as follows: (1) located directly on the body (considered to be a model of a disposable, adhesive device) or (2) next to the body (considered to be a model of a classic, reusable, wearable electronic device located inside a plastic housing). Several body sections adjacent to the antenna were considered: head, arm, forearm, and chest (simplified and anatomical body models were used). The numerical models of the exposure scenarios were verified by relevant laboratory tests using physical models. It was found that the use of simplified models of the human body (numerical or physical) may be sufficient when analyzing antenna performance and SAR in a user’s body, such as in studies regarding microwave imaging and sensing, wireless implantable devices, wireless body-area networks or SAR estimation.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Wireless Body Area Networks · Electromagnetic Fields and Biological Effects · Antenna Design and Analysis
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Affiliations
Central Institute for Labour Protection—National Research Institute (CIOP-PIB), 00-701 Warszawa, Poland
Funding
National Centre for Research and Development (Warszawa, Poland)
References (34)
Show source-provided references
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