RF Exposure Evaluation: Power Thresholds and SAR Compliance

RF EXPO

This document presents an RF exposure evaluation, adhering to the guidelines outlined in 447498 D04 Interim General RF Exposure Guidance v01. It focuses on determining power thresholds (Pth) based on frequency (f) and equivalent radiated power (ERP) at a distance of 20 cm (ERP20 cm). The document provides formulas for calculating Pth for different frequency ranges and separation distances (d), as well as a table (Table B.2) illustrating example power thresholds at various frequencies and distances.

The evaluation also includes calculations related to electric field strength (E), antenna gain (gt), and transmitter output power (pt). A specific example is provided, demonstrating the calculation of equivalent isotropically radiated power (EIRP) and the subsequent determination of power in milliwatts (mW). The conclusion indicates that the calculated mW value is below a specified threshold, suggesting that SAR evaluation is not required.


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This document presents an RF exposure evaluation, adhering to the guidelines outlined in 447498 D04 Interim General RF Exposure Guidance v01. It focuses on determining power thresholds (Pth) based on frequency (f) and equivalent radiated power (ERP) at a distance of 20 cm (ERP20 cm). The document provides formulas for calculating Pth for different frequency ranges and separation distances (d), as well as a table (Table B.2) illustrating example power thresholds at various frequencies and distances.

The evaluation also includes calculations related to electric field strength (E), antenna gain (gt), and transmitter output power (pt). A specific example is provided, demonstrating the calculation of equivalent isotropically radiated power (EIRP) and the subsequent determination of power in milliwatts (mW). The conclusion indicates that the calculated mW value is below a specified threshold, suggesting that SAR evaluation is not required.

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