RF Exposure Evaluation: Guidance and Thresholds

RF EXPO

This document presents an RF exposure evaluation conducted in accordance with 447498 D04 Interim General RF Exposure Guidance v01. It outlines the formulas and thresholds used to determine whether further Specific Absorption Rate (SAR) evaluation is required. The evaluation considers factors such as frequency, distance, output power, and antenna gain.

Key formulas include those for calculating ERP (Effective Radiated Power) at different distances and power thresholds based on frequency ranges. A table provides example power thresholds for various frequencies and distances. The document also defines the relationship between electric field strength, distance, and output power, incorporating antenna gain into the calculations.

The evaluation concludes with a specific example calculation, demonstrating how to determine the output power based on measured field strength and antenna gain. The result is compared to a threshold value to determine if SAR evaluation is necessary. In this case, the calculated power is below the threshold, indicating that SAR evaluation is not required.


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This document presents an RF exposure evaluation conducted in accordance with 447498 D04 Interim General RF Exposure Guidance v01. It outlines the formulas and thresholds used to determine whether further Specific Absorption Rate (SAR) evaluation is required. The evaluation considers factors such as frequency, distance, output power, and antenna gain.

Key formulas include those for calculating ERP (Effective Radiated Power) at different distances and power thresholds based on frequency ranges. A table provides example power thresholds for various frequencies and distances. The document also defines the relationship between electric field strength, distance, and output power, incorporating antenna gain into the calculations.

The evaluation concludes with a specific example calculation, demonstrating how to determine the output power based on measured field strength and antenna gain. The result is compared to a threshold value to determine if SAR evaluation is necessary. In this case, the calculated power is below the threshold, indicating that SAR evaluation is not required.

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