Power to Generate a Known Field (Far Field)
Use this tool to calculate the required power (in Watts) to generate a known far-field strength, based on the desired field strength (V/m), antenna gain, and distance from the antenna. The antenna gain is converted from dBi to its linear equivalent automatically.
Result: 0 W
Formula:
P = (E × d)² / (30 × G)
Where:
- P = Required power in Watts
- E = Required field strength in V/m
- d = Distance in meters
- G = Antenna gain (converted from dBi)
Note: Gain in dBi is converted to linear factor using: G = 10^(dBi/10)
This tool helps with:
Determining the power needed to achieve a specified field strength at a given distance.
Evaluating far-field performance in antenna testing setups.
Converting antenna gain from dBi to a linear factor for accurate power calculations.
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Last updated on May 27, 2025 by IBL-Editors Team
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