PIER Letters | |

Progress In Electromagnetics Research Letters | ISSN: 1937-6480 |

Home > Vol. 1 > pp. 93-99
## REFLECTION AND TRANSMISSION IN THE IONOSPHERE CONSIDERING COLLISIONS IN A FIRST APPROXIMATIONBy A. Yesil, M. Aydogdu, and A. G. Elias
Abstract:
Reflection and transmission coefficients (R and T) of high frequency waves propagating in the ionosphere are studied taking collisions into account. This was done approximating the expression (1 + Z^{2})^{-1} in the refractive index using binomial expansion and neglecting terms of order higher than Z^{2}, where Z is the ratio between the electron collision frequency and the wave frequency. R and T height profiles were assessed using the International Reference Ionosphere, IRI, to estimate the ionosphere plasma parameters. Although no significant differences are found between the estimation with and without collisions, the method employed to include collisions may be useful for other purposes where collisions should be taken into account.
2. Lundborg, B. and B. Thide, "Standing wave pattern of HF radio waves in the ionospheric reflection regions 2," 3. Ratcliffe, J. A., 4. Aydogdu, M., A. Yesil, and E. Guzel, "The group refractive indices of HF waves in the ionosphere and departure from the magnitude without collisions," 5. Rishbeth, H. and O. K. Garriott, 6. Budden, K. G., 7. Aydogdu, M. and O. Ozcan, "Effects of magnetic declination on refractive index and wave polarization coefficients of electromagnetic waves in mid-latitude ionosphere," 8. Hagfors, T., "Electromagnetic wave propagation in a field-alignedstriated cold magnetoplasma with application to the ionosphere," 9. Al'pert, Y. L., "The direction of the group velocity of electromagnetic waves in a multicomponent magneto-active plasma in the frequency range 0 < ω < ∞," |

© Copyright 2010 EMW Publishing. All Rights Reserved