Radio Waves As plane Electromagnetic Waves
From Maxwell's equations we find that radio waves, as they exist in free space in the far field or Fraunhofer region behave as plane waves. In plane waves the electric field, magnetic field and direction of propagation are mutually perpendicular. To understand the various mechanisms that allow successful radio communications over NLOS paths we must consider how such plane waves are affected by the object or objects that visually obstruct the otherwise LOS path between the antennas. It is understood that the terms radio far field waves and radio plane waves are interchangeable.
Read more about this topic: Non-line-of-sight Propagation
Famous quotes containing the words radio and/or waves:
“from above, thin squeaks of radio static,
The captured fume of space foams in our ears—”
—Hart Crane (1899–1932)
“In the Yangtze River waves push the waves ahead; so in life new people constantly replace the old ones.”
—Chinese proverb.