Determination of T and R Coefficients of the Polarized HF Wave Travelling Vertically in Ionospheric Plasma

IBRAHIM UNAL; ALI YESIL; ANA G. ELIAS

Balkan Physics Letters

Balkan Physical Union - Bogazici University Press

Año: 2007 vol. 15 p. 794 - 799

1301-8329

The ionosphere can reflect, refract and absorb radio waves; so, it is important to know the reflection (R) and the transmission (T) coefficients in order to determine the waves behaviors. In this study, T and R coefficients of the polarized high frequency (HF) wave traveling vertically in ionospheric plasma have been investigated. T and R coefficients of the polarized wave are analytically obtained and the coefficients values have been assessed. The parameters needed for the calculations have been obtained from the International Reference Ionosphere (IRI). The altitudinal and seasonal variations of T and R coefficients have been examined for quiet-solar activity days. It is shown that T decreases with altitude while R increases. This happens also for increasing wave frequency. In general, the wave R coefficient, for a given frequency, is smaller in summer than winter for any altitude, while the opposite holds for the T coefficient: It is greater in winter than in summer.