Power to Generate a Known Field (Far Field)
Calculate the transmitter power required to produce a specified electric field strength at a given distance under idealized free-space far-field conditions.
Result: —
Formulas: P = (E × d)² / (30 × G)
G = 10dBi/10
Model assumption: idealized free-space far-field propagation, with antenna gain in the direction of the point considered. Reflections, obstruction, cable losses, and near-field effects are not included.
The result is an engineering estimate for an idealized far-field model. It does not include cable losses, reflections, obstruction, near-field effects, or regulatory limits and does not replace measurement or conformity assessment.
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Author: IBL-Editors Team
Technical Review: Andreas Bender - Deputy Managing Director | IBL-Lab GmbH Give feedback on this article