T. Bullet - lisn

Propagation with a Magnetic FieldA magneto-plasma is birefringentThe index of refraction depends on the polarization of the radio waveA magneto-plasma is anisotropticThe index of refraction depends on the direction of propagationIndex of refraction: 2 2X 1− X =1−21− X −Y 2 T ±Y 4 T 41− X 2 2Y LWith respect to the direction of propagation:The + and – refer to the Ordinary andExtraordinary polarized radio wavesReflection occurs whenf N = fX =1−YX =1Y(Ordinary wave)Y L =Longitudinal component of YY T =Transverse component of Y(eXtraordinary waves)O&X are circularly polarized over most the EarthLinearly polarized at the magnetic equatorY = BemY = f Hfef H =∣B∣2 mAfter Davies, 1965