power density

power density definition - telecom
The power flow rate of an electromagnetic wave at a specific point in a medium, e.g., watts per square meter. The power density of a signal degrades over distance from the source due to absorption, diffraction, diffusion, dispersion, and scattering.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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