An Evaluation of Electromagnetic Exposure While Using Ultra-High Frequency Radiofrequency Identification (UHF RFID) Guns.

AI: Melanie Research RF Safe Research Library Jan 1, 2019 CONCERN MEDIUM

This study simulated SAR from handheld UHF RFID readers (“RFID guns”) in adult male and female models across seven close-proximity scenarios involving an operator, scanned person, or bystander. SAR was reported to comply with general public limits at emissions up to 1 W, but higher-power devices (>2 W, and especially >5 W) may exceed general public and occupational limits in worst-case positions. The authors conclude that only devices emitting below 1 W may be considered environmentally insignificant and highlight special caution for implant users and pregnant women near the devices.

Key points

The work evaluates SAR from handheld UHF RFID readers using computational simulations.
Seven exposure scenarios were modeled, including the gun near the head, arm, chest, and hip/thigh of the operator and near the chest/arm of others nearby.
At up to 1 W emission, simulated SAR was reported as compliant with general public limits (ICNIRP/1999/519/EC).
In worst-case scenarios, emissions >2 W may exceed general public SAR limits in the user’s palm and torso and in the torso of nearby individuals.
Occupational exposure limits may be exceeded when emission is >5 W, according to the abstract.
The authors state that implant users and pregnant women should be treated as at particular risk in close proximity, even at 1 W.
The paper concludes that only UHF RFID guns emitting below 1 W may be considered environmentally insignificant EMF sources.

Referenced studies & papers

Relevant papers in OpenMel

Source: Open original

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